diff --git a/Cargo.lock b/Cargo.lock
index 71464cb0..306a939c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -67,6 +67,24 @@ dependencies = [
  "backtrace",
 ]
 
+[[package]]
+name = "arrow2"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "467e88c67d518f9992bb1f6c8faa202eaf93b0ce244889d241c9c44d0df0ab46"
+dependencies = [
+ "ahash",
+ "bytemuck",
+ "chrono",
+ "dyn-clone",
+ "either",
+ "ethnum",
+ "foreign_vec",
+ "hash_hasher",
+ "num-traits",
+ "simdutf8",
+]
+
 [[package]]
 name = "async-trait"
 version = "0.1.56"
@@ -253,6 +271,26 @@ version = "3.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "37ccbd214614c6783386c1af30caf03192f17891059cecc394b4fb119e363de3"
 
+[[package]]
+name = "bytemuck"
+version = "1.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a5377c8865e74a160d21f29c2d40669f53286db6eab59b88540cbb12ffc8b835"
+dependencies = [
+ "bytemuck_derive",
+]
+
+[[package]]
+name = "bytemuck_derive"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cfd2f4180c5721da6335cc9e9061cce522b87a35e51cc57636d28d22a9863c80"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "byteorder"
 version = "1.4.3"
@@ -671,6 +709,12 @@ dependencies = [
  "shared_child",
 ]
 
+[[package]]
+name = "dyn-clone"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4f94fa09c2aeea5b8839e414b7b841bf429fd25b9c522116ac97ee87856d88b2"
+
 [[package]]
 name = "either"
 version = "1.7.0"
@@ -741,6 +785,12 @@ dependencies = [
  "erl_nif_macro",
 ]
 
+[[package]]
+name = "ethnum"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2eac3c0b9fa6eb75255ebb42c0ba3e2210d102a66d2795afef6fed668f373311"
+
 [[package]]
 name = "event-listener"
 version = "2.5.2"
@@ -802,6 +852,12 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "foreign_vec"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee1b05cbd864bcaecbd3455d6d967862d446e4ebfc3c2e5e5b9841e53cba6673"
+
 [[package]]
 name = "form_urlencoded"
 version = "1.0.1"
@@ -1035,6 +1091,12 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "hash_hasher"
+version = "2.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "74721d007512d0cb3338cd20f0654ac913920061a4c4d0d8708edb3f2a698c0c"
+
 [[package]]
 name = "hashbrown"
 version = "0.11.2"
@@ -3060,6 +3122,7 @@ name = "modelfox_core"
 version = "0.8.0"
 dependencies = [
  "anyhow",
+ "arrow2",
  "bitvec",
  "buffalo",
  "chrono",
@@ -3270,9 +3333,12 @@ name = "modelfox_python"
 version = "0.8.0"
 dependencies = [
  "anyhow",
+ "arrow2",
  "chrono",
  "memmap",
  "modelfox_core",
+ "modelfox_id",
+ "modelfox_kill_chip",
  "modelfox_model",
  "pyo3",
  "reqwest",
@@ -3299,6 +3365,7 @@ name = "modelfox_table"
 version = "0.8.0"
 dependencies = [
  "anyhow",
+ "arrow2",
  "csv",
  "fast-float",
  "fnv",
@@ -4928,6 +4995,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "simdutf8"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f27f6278552951f1f2b8cf9da965d10969b2efdea95a6ec47987ab46edfe263a"
+
 [[package]]
 name = "similar"
 version = "2.1.0"
diff --git a/Cargo.toml b/Cargo.toml
index 9412e23c..591f1aed 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,6 +23,7 @@ version = "0.8.0"
 
 [workspace.dependencies]
 anyhow = { version = "1.0", features = ["backtrace"] }
+arrow2 = { version = "0.14" }
 backtrace = "0.3"
 base64 = "0.13"
 bitvec = "1.0"
diff --git a/crates/cli/train.rs b/crates/cli/train.rs
index 9b94323f..23b45edc 100644
--- a/crates/cli/train.rs
+++ b/crates/cli/train.rs
@@ -53,12 +53,14 @@ pub fn train(args: TrainArgs) -> Result<()> {
 		let input = match (&args.file, &args.file_train, &args.file_test, args.stdin) {
 			(None, None, None, true) => modelfox_core::train::TrainingDataSource::Stdin,
 			(Some(file_path), None, None, false) => {
-				modelfox_core::train::TrainingDataSource::File(file_path.to_owned())
+				modelfox_core::train::TrainingDataSource::Train(
+					modelfox_core::train::FileOrArrow::File(file_path.to_owned()),
+				)
 			}
 			(None, Some(file_path_train), Some(file_path_test), false) => {
 				modelfox_core::train::TrainingDataSource::TrainAndTest {
-					train: file_path_train.to_owned(),
-					test: file_path_test.to_owned(),
+					train: modelfox_core::train::FileOrArrow::File(file_path_train.to_owned()),
+					test: modelfox_core::train::FileOrArrow::File(file_path_test.to_owned()),
 				}
 			}
 			_ => bail!("Must use the stdin flag or provide training data files."),
diff --git a/crates/core/Cargo.toml b/crates/core/Cargo.toml
index 48deecdc..bd15f6b6 100644
--- a/crates/core/Cargo.toml
+++ b/crates/core/Cargo.toml
@@ -18,6 +18,7 @@ path = "lib.rs"
 
 [dependencies]
 anyhow = { workspace = true }
+arrow2 = { workspace = true }
 bitvec = { workspace = true }
 buffalo = { workspace = true }
 chrono = { workspace = true }
diff --git a/crates/core/train.rs b/crates/core/train.rs
index a503b54b..4b938442 100644
--- a/crates/core/train.rs
+++ b/crates/core/train.rs
@@ -18,6 +18,7 @@ use crate::{
 	test,
 };
 use anyhow::{anyhow, bail, Result};
+use arrow2::ffi::ArrowArrayStream;
 use modelfox_id::Id;
 use modelfox_kill_chip::KillChip;
 use modelfox_progress_counter::ProgressCounter;
@@ -35,12 +36,17 @@ use std::{
 	unreachable,
 };
 
+pub enum FileOrArrow {
+	File(std::path::PathBuf),
+	Arrow(*const ArrowArrayStream),
+}
+
 pub enum TrainingDataSource {
 	Stdin,
-	File(std::path::PathBuf),
+	Train(FileOrArrow),
 	TrainAndTest {
-		train: std::path::PathBuf,
-		test: std::path::PathBuf,
+		train: FileOrArrow,
+		test: FileOrArrow,
 	},
 }
 
@@ -82,7 +88,7 @@ impl Trainer {
 				target_column_name,
 				handle_progress_event,
 			)?),
-			TrainingDataSource::File(file_path) => Dataset::Train(load_and_shuffle_dataset_train(
+			TrainingDataSource::Train(file_path) => Dataset::Train(load_and_shuffle_dataset_train(
 				&file_path,
 				&config,
 				target_column_name,
@@ -729,25 +735,31 @@ fn load_and_shuffle_dataset_stdin(
 }
 
 fn load_and_shuffle_dataset_train(
-	file_path: &Path,
+	file_path: &FileOrArrow,
 	config: &Config,
 	target_column_name: &str,
 	handle_progress_event: &mut dyn FnMut(ProgressEvent),
 ) -> Result<DatasetTrain> {
+	let mut handle_progress_event_inner = |progress_event| {
+		handle_progress_event(ProgressEvent::Load(LoadProgressEvent::Train(
+			progress_event,
+		)))
+	};
 	// Get the column types from the config, if set.
-	let mut table = Table::from_path(
-		file_path,
-		modelfox_table::FromCsvOptions {
-			column_types: column_types_from_config(config),
-			infer_options: Default::default(),
-			..Default::default()
-		},
-		&mut |progress_event| {
-			handle_progress_event(ProgressEvent::Load(LoadProgressEvent::Train(
-				progress_event,
-			)))
-		},
-	)?;
+	let mut table = match file_path {
+		FileOrArrow::File(file_path) => Table::from_path(
+			file_path,
+			modelfox_table::FromCsvOptions {
+				column_types: column_types_from_config(config),
+				infer_options: Default::default(),
+				..Default::default()
+			},
+			&mut handle_progress_event_inner,
+		)?,
+		FileOrArrow::Arrow(stream_ptr) => {
+			Table::from_arrow(*stream_ptr, &mut handle_progress_event_inner)?
+		}
+	};
 	// Drop any rows with invalid data in the target column
 	drop_invalid_target_rows(&mut table, target_column_name, handle_progress_event);
 	// Shuffle the table if enabled.
@@ -761,27 +773,33 @@ fn load_and_shuffle_dataset_train(
 }
 
 fn load_and_shuffle_dataset_train_and_test(
-	file_path_train: &Path,
-	file_path_test: &Path,
+	file_path_train: &FileOrArrow,
+	file_path_test: &FileOrArrow,
 	config: &Config,
 	target_column_name: &str,
 	handle_progress_event: &mut dyn FnMut(ProgressEvent),
 ) -> Result<DatasetTrainAndTest> {
+	let mut handle_progress_event_inner = |progress_event| {
+		handle_progress_event(ProgressEvent::Load(LoadProgressEvent::Train(
+			progress_event,
+		)))
+	};
 	// Get the column types from the config, if set.
 	let column_types = column_types_from_config(config);
-	let mut table_train = Table::from_path(
-		file_path_train,
-		modelfox_table::FromCsvOptions {
-			column_types,
-			infer_options: Default::default(),
-			..Default::default()
-		},
-		&mut |progress_event| {
-			handle_progress_event(ProgressEvent::Load(LoadProgressEvent::Train(
-				progress_event,
-			)))
-		},
-	)?;
+	let mut table_train = match file_path_train {
+		FileOrArrow::File(file_path_train) => Table::from_path(
+			file_path_train,
+			modelfox_table::FromCsvOptions {
+				column_types,
+				infer_options: Default::default(),
+				..Default::default()
+			},
+			&mut handle_progress_event_inner,
+		)?,
+		FileOrArrow::Arrow(stream_ptr_train) => {
+			Table::from_arrow(*stream_ptr_train, &mut handle_progress_event_inner)?
+		}
+	};
 	// Force the column types for table_test to be the same as table_train.
 	let column_types = table_train
 		.columns()
@@ -802,17 +820,20 @@ fn load_and_shuffle_dataset_train_and_test(
 			TableColumn::Text(column) => (column.name().to_owned().unwrap(), TableColumnType::Text),
 		})
 		.collect();
-	let mut table_test = Table::from_path(
-		file_path_test,
-		modelfox_table::FromCsvOptions {
-			column_types: Some(column_types),
-			infer_options: Default::default(),
-			..Default::default()
-		},
-		&mut |progress_event| {
-			handle_progress_event(ProgressEvent::Load(LoadProgressEvent::Test(progress_event)))
-		},
-	)?;
+	let mut table_test = match file_path_test {
+		FileOrArrow::File(file_path_test) => Table::from_path(
+			file_path_test,
+			modelfox_table::FromCsvOptions {
+				column_types: Some(column_types),
+				infer_options: Default::default(),
+				..Default::default()
+			},
+			&mut handle_progress_event_inner,
+		)?,
+		FileOrArrow::Arrow(stream_ptr_test) => {
+			Table::from_arrow(*stream_ptr_test, &mut handle_progress_event_inner)?
+		}
+	};
 	if table_train.columns().len() != table_test.columns().len() {
 		bail!("Training data and test data must contain the same number of columns.")
 	}
diff --git a/crates/table/Cargo.toml b/crates/table/Cargo.toml
index aeee218e..796bfa7b 100644
--- a/crates/table/Cargo.toml
+++ b/crates/table/Cargo.toml
@@ -21,6 +21,7 @@ insta = { workspace = true }
 
 [dependencies]
 anyhow = { workspace = true }
+arrow2 = { workspace = true }
 csv = { workspace = true }
 fast-float = { workspace = true }
 fnv = { workspace = true }
diff --git a/crates/table/load.rs b/crates/table/load.rs
index efc5f896..ebe60e8c 100644
--- a/crates/table/load.rs
+++ b/crates/table/load.rs
@@ -1,5 +1,10 @@
 use super::{Table, TableColumn, TableColumnType};
 use anyhow::Result;
+use arrow2::{
+	array::{BooleanArray, PrimitiveArray, StructArray},
+	datatypes::DataType,
+	ffi,
+};
 use modelfox_progress_counter::ProgressCounter;
 use modelfox_zip::zip;
 // NOTE - this import is actually used, false positive with the lint.
@@ -8,6 +13,7 @@ use num::ToPrimitive;
 use std::{
 	collections::{BTreeMap, BTreeSet},
 	path::Path,
+	vec,
 };
 
 #[derive(Clone)]
@@ -244,6 +250,130 @@ impl Table {
 		handle_progress_event(ProgressEvent::LoadDone);
 		Ok(table)
 	}
+
+	pub fn from_arrow(
+		stream_ptr: *const ffi::ArrowArrayStream,
+		handle_progress_event: &mut impl FnMut(ProgressEvent),
+	) -> Result<Table> {
+		let stream = unsafe { Box::from_raw(stream_ptr as *mut ffi::ArrowArrayStream) };
+
+		// copy fields out from stream reader
+		let mut iter = unsafe { ffi::ArrowArrayStreamReader::try_new(stream) }?;
+		let mut all_values = vec![];
+		let mut column_names = vec![];
+		let mut column_types = vec![];
+
+		while let Some(array) = unsafe { iter.next() } {
+			let array = array.unwrap();
+			let array = array.as_any().downcast_ref::<StructArray>().unwrap();
+			let (fields, values, _) = array.clone().into_data();
+
+			for (field, value) in zip!(fields, values) {
+				let column_name = field.name.clone();
+				let column_type = match field.data_type {
+					DataType::Int8
+					| DataType::Int16
+					| DataType::Int32
+					| DataType::Int64
+					| DataType::UInt8
+					| DataType::UInt16
+					| DataType::UInt32
+					| DataType::UInt64
+					| DataType::Float16
+					| DataType::Float32
+					| DataType::Float64
+					| DataType::Boolean => TableColumnType::Number,
+					DataType::Utf8 => {
+						let mut uniques = BTreeSet::new();
+						if let Some(value) = value
+							.as_any()
+							.downcast_ref::<arrow2::array::Utf8Array<i32>>()
+						{
+							uniques
+								.extend(value.values_iter().map(std::string::ToString::to_string));
+						} else if let Some(value) = value
+							.as_any()
+							.downcast_ref::<arrow2::array::Utf8Array<i64>>()
+						{
+							uniques
+								.extend(value.values_iter().map(std::string::ToString::to_string));
+						} else {
+							unreachable!();
+						}
+						let variants = uniques.into_iter().collect();
+						TableColumnType::Enum { variants }
+					}
+					_ => TableColumnType::Unknown,
+				};
+
+				column_names.push(Some(column_name));
+				column_types.push(column_type);
+				all_values.push(value);
+			}
+		}
+		std::mem::forget(iter);
+		handle_progress_event(ProgressEvent::InferDone);
+
+		// write table data
+		let mut table = Table::new(column_names, column_types);
+
+		for (column, value) in zip!(&mut table.columns, all_values) {
+			match column {
+				TableColumn::Unknown(_) => {
+					unreachable!();
+				}
+				TableColumn::Number(column) => {
+					if let Some(value) = value.as_any().downcast_ref::<PrimitiveArray<f32>>() {
+						column.data.extend(value.values_iter());
+					} else if let Some(value) = value.as_any().downcast_ref::<PrimitiveArray<f64>>()
+					{
+						column.data.extend(value.values_iter().map(|&x| x as f32));
+					} else if let Some(value) = value.as_any().downcast_ref::<PrimitiveArray<i32>>()
+					{
+						column.data.extend(value.values_iter().map(|&x| x as f32));
+					} else if let Some(value) = value.as_any().downcast_ref::<PrimitiveArray<i64>>()
+					{
+						column.data.extend(value.values_iter().map(|&x| x as f32));
+					} else if let Some(value) = value.as_any().downcast_ref::<BooleanArray>() {
+						column
+							.data
+							.extend(value.values_iter().map(|x| i32::from(x) as f32));
+					} else {
+						unreachable!();
+					}
+				}
+				TableColumn::Enum(column) => {
+					if let Some(value) = value
+						.as_any()
+						.downcast_ref::<arrow2::array::Utf8Array<i32>>()
+					{
+						let mut v: Vec<Option<std::num::NonZeroUsize>> = Vec::new();
+						for s in value.values_iter() {
+							v.push(column.value_for_variant(s));
+						}
+						column.data.extend(v);
+					} else if let Some(value) = value
+						.as_any()
+						.downcast_ref::<arrow2::array::Utf8Array<i64>>()
+					{
+						let mut v: Vec<Option<std::num::NonZeroUsize>> = Vec::new();
+						for s in value.values_iter() {
+							v.push(column.value_for_variant(s));
+						}
+						column.data.extend(v);
+					} else {
+						unreachable!();
+					}
+				}
+				TableColumn::Text(_column) => {
+					unreachable!();
+				}
+			}
+		}
+
+		handle_progress_event(ProgressEvent::LoadDone);
+		Ok(table)
+	}
 }
 
 #[derive(Clone, Debug)]
diff --git a/crates/www/content/Cargo.toml b/crates/www/content/Cargo.toml
index 13270231..ddef8a74 100644
--- a/crates/www/content/Cargo.toml
+++ b/crates/www/content/Cargo.toml
@@ -15,6 +15,7 @@ version = { workspace = true }
 
 [lib]
 path = "lib.rs"
+doctest = false
 
 [dependencies]
 anyhow = { workspace = true }
diff --git a/languages/python/Cargo.toml b/languages/python/Cargo.toml
index 4d13de66..4db11b44 100644
--- a/languages/python/Cargo.toml
+++ b/languages/python/Cargo.toml
@@ -17,6 +17,7 @@ path = "lib.rs"
 
 [dependencies]
 anyhow = { workspace = true }
+arrow2 = { workspace = true }
 chrono = { workspace = true }
 memmap = { workspace = true }
 pyo3 = { workspace = true }
@@ -26,4 +27,6 @@ serde_json = { workspace = true }
 url = { workspace = true }
 
 modelfox_core = { workspace = true }
-modelfox_model = { workspace = true }
\ No newline at end of file
+modelfox_model = { workspace = true }
+modelfox_kill_chip = { workspace = true }
+modelfox_id = { workspace = true }
diff --git a/languages/python/Makefile b/languages/python/Makefile
new file mode 100644
index 00000000..03873f27
--- /dev/null
+++ b/languages/python/Makefile
@@ -0,0 +1,12 @@
+.PHONY: test dev
+
+test: dev
+	.venv/bin/python examples/basic/train.py
+
+dev: .venv
+	cargo build -p modelfox_python
+	cp ../../target/debug/libmodelfox_python.so modelfox/modelfox_python.so
+	.venv/bin/pip install -e .
+
+.venv:
+	virtualenv .venv
diff --git a/languages/python/examples/basic/heart_disease.csv b/languages/python/examples/basic/heart_disease.csv
new file mode 100644
index 00000000..f3b713d2
--- /dev/null
+++ b/languages/python/examples/basic/heart_disease.csv
@@ -0,0 +1,304 @@
+age,gender,chest_pain,resting_blood_pressure,cholesterol,fasting_blood_sugar_greater_than_120,resting_ecg_result,exercise_max_heart_rate,exercise_induced_angina,exercise_st_depression,exercise_st_slope,fluoroscopy_vessels_colored,thallium_stress_test,diagnosis
+63,male,typical angina,145,233,true,probable or definite left ventricular hypertrophy,150,no,2.3,downsloping,0,fixed defect,Negative
+67,male,asymptomatic,160,286,false,probable or definite left ventricular hypertrophy,108,yes,1.5,flat,3,normal,Positive
+67,male,asymptomatic,120,229,false,probable or definite left ventricular hypertrophy,129,yes,2.6,flat,2,reversible defect,Positive
+37,male,non-angina pain,130,250,false,normal,187,no,3.5,downsloping,0,normal,Negative
+41,female,atypical angina,130,204,false,probable or definite left ventricular hypertrophy,172,no,1.4,upsloping,0,normal,Negative
+56,male,atypical angina,120,236,false,normal,178,no,0.8,upsloping,0,normal,Negative
+62,female,asymptomatic,140,268,false,probable or definite left ventricular hypertrophy,160,no,3.6,downsloping,2,normal,Positive
+57,female,asymptomatic,120,354,false,normal,163,yes,0.6,upsloping,0,normal,Negative
+63,male,asymptomatic,130,254,false,probable or definite left ventricular hypertrophy,147,no,1.4,flat,1,reversible defect,Positive
+53,male,asymptomatic,140,203,true,probable or definite left ventricular hypertrophy,155,yes,3.1,downsloping,0,reversible defect,Positive
+57,male,asymptomatic,140,192,false,normal,148,no,0.4,flat,0,fixed defect,Negative
+56,female,atypical angina,140,294,false,probable or definite left ventricular hypertrophy,153,no,1.3,flat,0,normal,Negative
+56,male,non-angina pain,130,256,true,probable or definite left ventricular hypertrophy,142,yes,0.6,flat,1,fixed defect,Positive
+44,male,atypical angina,120,263,false,normal,173,no,0,upsloping,0,reversible defect,Negative
+52,male,non-angina pain,172,199,true,normal,162,no,0.5,upsloping,0,reversible defect,Negative
+57,male,non-angina pain,150,168,false,normal,174,no,1.6,upsloping,0,normal,Negative
+48,male,atypical angina,110,229,false,normal,168,no,1,downsloping,0,reversible defect,Positive
+54,male,asymptomatic,140,239,false,normal,160,no,1.2,upsloping,0,normal,Negative
+48,female,non-angina pain,130,275,false,normal,139,no,0.2,upsloping,0,normal,Negative
+49,male,atypical angina,130,266,false,normal,171,no,0.6,upsloping,0,normal,Negative
+64,male,typical angina,110,211,false,probable or definite left ventricular hypertrophy,144,yes,1.8,flat,0,normal,Negative
+58,female,typical angina,150,283,true,probable or definite left ventricular hypertrophy,162,no,1,upsloping,0,normal,Negative
+58,male,atypical angina,120,284,false,probable or definite left ventricular hypertrophy,160,no,1.8,flat,0,normal,Positive
+58,male,non-angina pain,132,224,false,probable or definite left ventricular hypertrophy,173,no,3.2,upsloping,2,reversible defect,Positive
+60,male,asymptomatic,130,206,false,probable or definite left ventricular hypertrophy,132,yes,2.4,flat,2,reversible defect,Positive
+50,female,non-angina pain,120,219,false,normal,158,no,1.6,flat,0,normal,Negative
+58,female,non-angina pain,120,340,false,normal,172,no,0,upsloping,0,normal,Negative
+66,female,typical angina,150,226,false,normal,114,no,2.6,downsloping,0,normal,Negative
+43,male,asymptomatic,150,247,false,normal,171,no,1.5,upsloping,0,normal,Negative
+40,male,asymptomatic,110,167,false,probable or definite left ventricular hypertrophy,114,yes,2,flat,0,reversible defect,Positive
+69,female,typical angina,140,239,false,normal,151,no,1.8,upsloping,2,normal,Negative
+60,male,asymptomatic,117,230,true,normal,160,yes,1.4,upsloping,2,reversible defect,Positive
+64,male,non-angina pain,140,335,false,normal,158,no,0,upsloping,0,normal,Positive
+59,male,asymptomatic,135,234,false,normal,161,no,0.5,flat,0,reversible defect,Negative
+44,male,non-angina pain,130,233,false,normal,179,yes,0.4,upsloping,0,normal,Negative
+42,male,asymptomatic,140,226,false,normal,178,no,0,upsloping,0,normal,Negative
+43,male,asymptomatic,120,177,false,probable or definite left ventricular hypertrophy,120,yes,2.5,flat,0,reversible defect,Positive
+57,male,asymptomatic,150,276,false,probable or definite left ventricular hypertrophy,112,yes,0.6,flat,1,fixed defect,Positive
+55,male,asymptomatic,132,353,false,normal,132,yes,1.2,flat,1,reversible defect,Positive
+61,male,non-angina pain,150,243,true,normal,137,yes,1,flat,0,normal,Negative
+65,female,asymptomatic,150,225,false,probable or definite left ventricular hypertrophy,114,no,1,flat,3,reversible defect,Positive
+40,male,typical angina,140,199,false,normal,178,yes,1.4,upsloping,0,reversible defect,Negative
+71,female,atypical angina,160,302,false,normal,162,no,0.4,upsloping,2,normal,Negative
+59,male,non-angina pain,150,212,true,normal,157,no,1.6,upsloping,0,normal,Negative
+61,female,asymptomatic,130,330,false,probable or definite left ventricular hypertrophy,169,no,0,upsloping,0,normal,Positive
+58,male,non-angina pain,112,230,false,probable or definite left ventricular hypertrophy,165,no,2.5,flat,1,reversible defect,Positive
+51,male,non-angina pain,110,175,false,normal,123,no,0.6,upsloping,0,normal,Negative
+50,male,asymptomatic,150,243,false,probable or definite left ventricular hypertrophy,128,no,2.6,flat,0,reversible defect,Positive
+65,female,non-angina pain,140,417,true,probable or definite left ventricular hypertrophy,157,no,0.8,upsloping,1,normal,Negative
+53,male,non-angina pain,130,197,true,probable or definite left ventricular hypertrophy,152,no,1.2,downsloping,0,normal,Negative
+41,female,atypical angina,105,198,false,normal,168,no,0,upsloping,1,normal,Negative
+65,male,asymptomatic,120,177,false,normal,140,no,0.4,upsloping,0,reversible defect,Negative
+44,male,asymptomatic,112,290,false,probable or definite left ventricular hypertrophy,153,no,0,upsloping,1,normal,Positive
+44,male,atypical angina,130,219,false,probable or definite left ventricular hypertrophy,188,no,0,upsloping,0,normal,Negative
+60,male,asymptomatic,130,253,false,normal,144,yes,1.4,upsloping,1,reversible defect,Positive
+54,male,asymptomatic,124,266,false,probable or definite left ventricular hypertrophy,109,yes,2.2,flat,1,reversible defect,Positive
+50,male,non-angina pain,140,233,false,normal,163,no,0.6,flat,1,reversible defect,Positive
+41,male,asymptomatic,110,172,false,probable or definite left ventricular hypertrophy,158,no,0,upsloping,0,reversible defect,Positive
+54,male,non-angina pain,125,273,false,probable or definite left ventricular hypertrophy,152,no,0.5,downsloping,1,normal,Negative
+51,male,typical angina,125,213,false,probable or definite left ventricular hypertrophy,125,yes,1.4,upsloping,1,normal,Negative
+51,female,asymptomatic,130,305,false,normal,142,yes,1.2,flat,0,reversible defect,Positive
+46,female,non-angina pain,142,177,false,probable or definite left ventricular hypertrophy,160,yes,1.4,downsloping,0,normal,Negative
+58,male,asymptomatic,128,216,false,probable or definite left ventricular hypertrophy,131,yes,2.2,flat,3,reversible defect,Positive
+54,female,non-angina pain,135,304,true,normal,170,no,0,upsloping,0,normal,Negative
+54,male,asymptomatic,120,188,false,normal,113,no,1.4,flat,1,reversible defect,Positive
+60,male,asymptomatic,145,282,false,probable or definite left ventricular hypertrophy,142,yes,2.8,flat,2,reversible defect,Positive
+60,male,non-angina pain,140,185,false,probable or definite left ventricular hypertrophy,155,no,3,flat,0,normal,Positive
+54,male,non-angina pain,150,232,false,probable or definite left ventricular hypertrophy,165,no,1.6,upsloping,0,reversible defect,Negative
+59,male,asymptomatic,170,326,false,probable or definite left ventricular hypertrophy,140,yes,3.4,downsloping,0,reversible defect,Positive
+46,male,non-angina pain,150,231,false,normal,147,no,3.6,flat,0,normal,Positive
+65,female,non-angina pain,155,269,false,normal,148,no,0.8,upsloping,0,normal,Negative
+67,male,asymptomatic,125,254,true,normal,163,no,0.2,flat,2,reversible defect,Positive
+62,male,asymptomatic,120,267,false,normal,99,yes,1.8,flat,2,reversible defect,Positive
+65,male,asymptomatic,110,248,false,probable or definite left ventricular hypertrophy,158,no,0.6,upsloping,2,fixed defect,Positive
+44,male,asymptomatic,110,197,false,probable or definite left ventricular hypertrophy,177,no,0,upsloping,1,normal,Positive
+65,female,non-angina pain,160,360,false,probable or definite left ventricular hypertrophy,151,no,0.8,upsloping,0,normal,Negative
+60,male,asymptomatic,125,258,false,probable or definite left ventricular hypertrophy,141,yes,2.8,flat,1,reversible defect,Positive
+51,female,non-angina pain,140,308,false,probable or definite left ventricular hypertrophy,142,no,1.5,upsloping,1,normal,Negative
+48,male,atypical angina,130,245,false,probable or definite left ventricular hypertrophy,180,no,0.2,flat,0,normal,Negative
+58,male,asymptomatic,150,270,false,probable or definite left ventricular hypertrophy,111,yes,0.8,upsloping,0,reversible defect,Positive
+45,male,asymptomatic,104,208,false,probable or definite left ventricular hypertrophy,148,yes,3,flat,0,normal,Negative
+53,female,asymptomatic,130,264,false,probable or definite left ventricular hypertrophy,143,no,0.4,flat,0,normal,Negative
+39,male,non-angina pain,140,321,false,probable or definite left ventricular hypertrophy,182,no,0,upsloping,0,normal,Negative
+68,male,non-angina pain,180,274,true,probable or definite left ventricular hypertrophy,150,yes,1.6,flat,0,reversible defect,Positive
+52,male,atypical angina,120,325,false,normal,172,no,0.2,upsloping,0,normal,Negative
+44,male,non-angina pain,140,235,false,probable or definite left ventricular hypertrophy,180,no,0,upsloping,0,normal,Negative
+47,male,non-angina pain,138,257,false,probable or definite left ventricular hypertrophy,156,no,0,upsloping,0,normal,Negative
+53,female,non-angina pain,128,216,false,probable or definite left ventricular hypertrophy,115,no,0,upsloping,0,,Negative
+53,female,asymptomatic,138,234,false,probable or definite left ventricular hypertrophy,160,no,0,upsloping,0,normal,Negative
+51,female,non-angina pain,130,256,false,probable or definite left ventricular hypertrophy,149,no,0.5,upsloping,0,normal,Negative
+66,male,asymptomatic,120,302,false,probable or definite left ventricular hypertrophy,151,no,0.4,flat,0,normal,Negative
+62,female,asymptomatic,160,164,false,probable or definite left ventricular hypertrophy,145,no,6.2,downsloping,3,reversible defect,Positive
+62,male,non-angina pain,130,231,false,normal,146,no,1.8,flat,3,reversible defect,Negative
+44,female,non-angina pain,108,141,false,normal,175,no,0.6,flat,0,normal,Negative
+63,female,non-angina pain,135,252,false,probable or definite left ventricular hypertrophy,172,no,0,upsloping,0,normal,Negative
+52,male,asymptomatic,128,255,false,normal,161,yes,0,upsloping,1,reversible defect,Positive
+59,male,asymptomatic,110,239,false,probable or definite left ventricular hypertrophy,142,yes,1.2,flat,1,reversible defect,Positive
+60,female,asymptomatic,150,258,false,probable or definite left ventricular hypertrophy,157,no,2.6,flat,2,reversible defect,Positive
+52,male,atypical angina,134,201,false,normal,158,no,0.8,upsloping,1,normal,Negative
+48,male,asymptomatic,122,222,false,probable or definite left ventricular hypertrophy,186,no,0,upsloping,0,normal,Negative
+45,male,asymptomatic,115,260,false,probable or definite left ventricular hypertrophy,185,no,0,upsloping,0,normal,Negative
+34,male,typical angina,118,182,false,probable or definite left ventricular hypertrophy,174,no,0,upsloping,0,normal,Negative
+57,female,asymptomatic,128,303,false,probable or definite left ventricular hypertrophy,159,no,0,upsloping,1,normal,Negative
+71,female,non-angina pain,110,265,true,probable or definite left ventricular hypertrophy,130,no,0,upsloping,1,normal,Negative
+49,male,non-angina pain,120,188,false,normal,139,no,2,flat,3,reversible defect,Positive
+54,male,atypical angina,108,309,false,normal,156,no,0,upsloping,0,reversible defect,Negative
+59,male,asymptomatic,140,177,false,normal,162,yes,0,upsloping,1,reversible defect,Positive
+57,male,non-angina pain,128,229,false,probable or definite left ventricular hypertrophy,150,no,0.4,flat,1,reversible defect,Positive
+61,male,asymptomatic,120,260,false,normal,140,yes,3.6,flat,1,reversible defect,Positive
+39,male,asymptomatic,118,219,false,normal,140,no,1.2,flat,0,reversible defect,Positive
+61,female,asymptomatic,145,307,false,probable or definite left ventricular hypertrophy,146,yes,1,flat,0,reversible defect,Positive
+56,male,asymptomatic,125,249,true,probable or definite left ventricular hypertrophy,144,yes,1.2,flat,1,normal,Positive
+52,male,typical angina,118,186,false,probable or definite left ventricular hypertrophy,190,no,0,flat,0,fixed defect,Negative
+43,female,asymptomatic,132,341,true,probable or definite left ventricular hypertrophy,136,yes,3,flat,0,reversible defect,Positive
+62,female,non-angina pain,130,263,false,normal,97,no,1.2,flat,1,reversible defect,Positive
+41,male,atypical angina,135,203,false,normal,132,no,0,flat,0,fixed defect,Negative
+58,male,non-angina pain,140,211,true,probable or definite left ventricular hypertrophy,165,no,0,upsloping,0,normal,Negative
+35,female,asymptomatic,138,183,false,normal,182,no,1.4,upsloping,0,normal,Negative
+63,male,asymptomatic,130,330,true,probable or definite left ventricular hypertrophy,132,yes,1.8,upsloping,3,reversible defect,Positive
+65,male,asymptomatic,135,254,false,probable or definite left ventricular hypertrophy,127,no,2.8,flat,1,reversible defect,Positive
+48,male,asymptomatic,130,256,true,probable or definite left ventricular hypertrophy,150,yes,0,upsloping,2,reversible defect,Positive
+63,female,asymptomatic,150,407,false,probable or definite left ventricular hypertrophy,154,no,4,flat,3,reversible defect,Positive
+51,male,non-angina pain,100,222,false,normal,143,yes,1.2,flat,0,normal,Negative
+55,male,asymptomatic,140,217,false,normal,111,yes,5.6,downsloping,0,reversible defect,Positive
+65,male,typical angina,138,282,true,probable or definite left ventricular hypertrophy,174,no,1.4,flat,1,normal,Positive
+45,female,atypical angina,130,234,false,probable or definite left ventricular hypertrophy,175,no,0.6,flat,0,normal,Negative
+56,female,asymptomatic,200,288,true,probable or definite left ventricular hypertrophy,133,yes,4,downsloping,2,reversible defect,Positive
+54,male,asymptomatic,110,239,false,normal,126,yes,2.8,flat,1,reversible defect,Positive
+44,male,atypical angina,120,220,false,normal,170,no,0,upsloping,0,normal,Negative
+62,female,asymptomatic,124,209,false,normal,163,no,0,upsloping,0,normal,Negative
+54,male,non-angina pain,120,258,false,probable or definite left ventricular hypertrophy,147,no,0.4,flat,0,reversible defect,Negative
+51,male,non-angina pain,94,227,false,normal,154,yes,0,upsloping,1,reversible defect,Negative
+29,male,atypical angina,130,204,false,probable or definite left ventricular hypertrophy,202,no,0,upsloping,0,normal,Negative
+51,male,asymptomatic,140,261,false,probable or definite left ventricular hypertrophy,186,yes,0,upsloping,0,normal,Negative
+43,female,non-angina pain,122,213,false,normal,165,no,0.2,flat,0,normal,Negative
+55,female,atypical angina,135,250,false,probable or definite left ventricular hypertrophy,161,no,1.4,flat,0,normal,Negative
+70,male,asymptomatic,145,174,false,normal,125,yes,2.6,downsloping,0,reversible defect,Positive
+62,male,atypical angina,120,281,false,probable or definite left ventricular hypertrophy,103,no,1.4,flat,1,reversible defect,Positive
+35,male,asymptomatic,120,198,false,normal,130,yes,1.6,flat,0,reversible defect,Positive
+51,male,non-angina pain,125,245,true,probable or definite left ventricular hypertrophy,166,no,2.4,flat,0,normal,Negative
+59,male,atypical angina,140,221,false,normal,164,yes,0,upsloping,0,normal,Negative
+59,male,typical angina,170,288,false,probable or definite left ventricular hypertrophy,159,no,0.2,flat,0,reversible defect,Positive
+52,male,atypical angina,128,205,true,normal,184,no,0,upsloping,0,normal,Negative
+64,male,non-angina pain,125,309,false,normal,131,yes,1.8,flat,0,reversible defect,Positive
+58,male,non-angina pain,105,240,false,probable or definite left ventricular hypertrophy,154,yes,0.6,flat,0,reversible defect,Negative
+47,male,non-angina pain,108,243,false,normal,152,no,0,upsloping,0,normal,Positive
+57,male,asymptomatic,165,289,true,probable or definite left ventricular hypertrophy,124,no,1,flat,3,reversible defect,Positive
+41,male,non-angina pain,112,250,false,normal,179,no,0,upsloping,0,normal,Negative
+45,male,atypical angina,128,308,false,probable or definite left ventricular hypertrophy,170,no,0,upsloping,0,normal,Negative
+60,female,non-angina pain,102,318,false,normal,160,no,0,upsloping,1,normal,Negative
+52,male,typical angina,152,298,true,normal,178,no,1.2,flat,0,reversible defect,Negative
+42,female,asymptomatic,102,265,false,probable or definite left ventricular hypertrophy,122,no,0.6,flat,0,normal,Negative
+67,female,non-angina pain,115,564,false,probable or definite left ventricular hypertrophy,160,no,1.6,flat,0,reversible defect,Negative
+55,male,asymptomatic,160,289,false,probable or definite left ventricular hypertrophy,145,yes,0.8,flat,1,reversible defect,Positive
+64,male,asymptomatic,120,246,false,probable or definite left ventricular hypertrophy,96,yes,2.2,downsloping,1,normal,Positive
+70,male,asymptomatic,130,322,false,probable or definite left ventricular hypertrophy,109,no,2.4,flat,3,normal,Positive
+51,male,asymptomatic,140,299,false,normal,173,yes,1.6,upsloping,0,reversible defect,Positive
+58,male,asymptomatic,125,300,false,probable or definite left ventricular hypertrophy,171,no,0,upsloping,2,reversible defect,Positive
+60,male,asymptomatic,140,293,false,probable or definite left ventricular hypertrophy,170,no,1.2,flat,2,reversible defect,Positive
+68,male,non-angina pain,118,277,false,normal,151,no,1,upsloping,1,reversible defect,Negative
+46,male,atypical angina,101,197,true,normal,156,no,0,upsloping,0,reversible defect,Negative
+77,male,asymptomatic,125,304,false,probable or definite left ventricular hypertrophy,162,yes,0,upsloping,3,normal,Positive
+54,female,non-angina pain,110,214,false,normal,158,no,1.6,flat,0,normal,Negative
+58,female,asymptomatic,100,248,false,probable or definite left ventricular hypertrophy,122,no,1,flat,0,normal,Negative
+48,male,non-angina pain,124,255,true,normal,175,no,0,upsloping,2,normal,Negative
+57,male,asymptomatic,132,207,false,normal,168,yes,0,upsloping,0,reversible defect,Negative
+52,male,non-angina pain,138,223,false,normal,169,no,0,upsloping,,normal,Negative
+54,female,atypical angina,132,288,true,probable or definite left ventricular hypertrophy,159,yes,0,upsloping,1,normal,Negative
+35,male,asymptomatic,126,282,false,probable or definite left ventricular hypertrophy,156,yes,0,upsloping,0,reversible defect,Positive
+45,female,atypical angina,112,160,false,normal,138,no,0,flat,0,normal,Negative
+70,male,non-angina pain,160,269,false,normal,112,yes,2.9,flat,1,reversible defect,Positive
+53,male,asymptomatic,142,226,false,probable or definite left ventricular hypertrophy,111,yes,0,upsloping,0,reversible defect,Negative
+59,female,asymptomatic,174,249,false,normal,143,yes,0,flat,0,normal,Positive
+62,female,asymptomatic,140,394,false,probable or definite left ventricular hypertrophy,157,no,1.2,flat,0,normal,Negative
+64,male,asymptomatic,145,212,false,probable or definite left ventricular hypertrophy,132,no,2,flat,2,fixed defect,Positive
+57,male,asymptomatic,152,274,false,normal,88,yes,1.2,flat,1,reversible defect,Positive
+52,male,asymptomatic,108,233,true,normal,147,no,0.1,upsloping,3,reversible defect,Negative
+56,male,asymptomatic,132,184,false,probable or definite left ventricular hypertrophy,105,yes,2.1,flat,1,fixed defect,Positive
+43,male,non-angina pain,130,315,false,normal,162,no,1.9,upsloping,1,normal,Negative
+53,male,non-angina pain,130,246,true,probable or definite left ventricular hypertrophy,173,no,0,upsloping,3,normal,Negative
+48,male,asymptomatic,124,274,false,probable or definite left ventricular hypertrophy,166,no,0.5,flat,0,reversible defect,Positive
+56,female,asymptomatic,134,409,false,probable or definite left ventricular hypertrophy,150,yes,1.9,flat,2,reversible defect,Positive
+42,male,typical angina,148,244,false,probable or definite left ventricular hypertrophy,178,no,0.8,upsloping,2,normal,Negative
+59,male,typical angina,178,270,false,probable or definite left ventricular hypertrophy,145,no,4.2,downsloping,0,reversible defect,Negative
+60,female,asymptomatic,158,305,false,probable or definite left ventricular hypertrophy,161,no,0,upsloping,0,normal,Positive
+63,female,atypical angina,140,195,false,normal,179,no,0,upsloping,2,normal,Negative
+42,male,non-angina pain,120,240,true,normal,194,no,0.8,downsloping,0,reversible defect,Negative
+66,male,atypical angina,160,246,false,normal,120,yes,0,flat,3,fixed defect,Positive
+54,male,atypical angina,192,283,false,probable or definite left ventricular hypertrophy,195,no,0,upsloping,1,reversible defect,Positive
+69,male,non-angina pain,140,254,false,probable or definite left ventricular hypertrophy,146,no,2,flat,3,reversible defect,Positive
+50,male,non-angina pain,129,196,false,normal,163,no,0,upsloping,0,normal,Negative
+51,male,asymptomatic,140,298,false,normal,122,yes,4.2,flat,3,reversible defect,Positive
+43,male,asymptomatic,132,247,true,probable or definite left ventricular hypertrophy,143,yes,0.1,flat,,reversible defect,Positive
+62,female,asymptomatic,138,294,true,normal,106,no,1.9,flat,3,normal,Positive
+68,female,non-angina pain,120,211,false,probable or definite left ventricular hypertrophy,115,no,1.5,flat,0,normal,Negative
+67,male,asymptomatic,100,299,false,probable or definite left ventricular hypertrophy,125,yes,0.9,flat,2,normal,Positive
+69,male,typical angina,160,234,true,probable or definite left ventricular hypertrophy,131,no,0.1,flat,1,normal,Negative
+45,female,asymptomatic,138,236,false,probable or definite left ventricular hypertrophy,152,yes,0.2,flat,0,normal,Negative
+50,female,atypical angina,120,244,false,normal,162,no,1.1,upsloping,0,normal,Negative
+59,male,typical angina,160,273,false,probable or definite left ventricular hypertrophy,125,no,0,upsloping,0,normal,Positive
+50,female,asymptomatic,110,254,false,probable or definite left ventricular hypertrophy,159,no,0,upsloping,0,normal,Negative
+64,female,asymptomatic,180,325,false,normal,154,yes,0,upsloping,0,normal,Negative
+57,male,non-angina pain,150,126,true,normal,173,no,0.2,upsloping,1,reversible defect,Negative
+64,female,non-angina pain,140,313,false,normal,133,no,0.2,upsloping,0,reversible defect,Negative
+43,male,asymptomatic,110,211,false,normal,161,no,0,upsloping,0,reversible defect,Negative
+45,male,asymptomatic,142,309,false,probable or definite left ventricular hypertrophy,147,yes,0,flat,3,reversible defect,Positive
+58,male,asymptomatic,128,259,false,probable or definite left ventricular hypertrophy,130,yes,3,flat,2,reversible defect,Positive
+50,male,asymptomatic,144,200,false,probable or definite left ventricular hypertrophy,126,yes,0.9,flat,0,reversible defect,Positive
+55,male,atypical angina,130,262,false,normal,155,no,0,upsloping,0,normal,Negative
+62,female,asymptomatic,150,244,false,normal,154,yes,1.4,flat,0,normal,Positive
+37,female,non-angina pain,120,215,false,normal,170,no,0,upsloping,0,normal,Negative
+38,male,typical angina,120,231,false,normal,182,yes,3.8,flat,0,reversible defect,Positive
+41,male,non-angina pain,130,214,false,probable or definite left ventricular hypertrophy,168,no,2,flat,0,normal,Negative
+66,female,asymptomatic,178,228,true,normal,165,yes,1,flat,2,reversible defect,Positive
+52,male,asymptomatic,112,230,false,normal,160,no,0,upsloping,1,normal,Positive
+56,male,typical angina,120,193,false,probable or definite left ventricular hypertrophy,162,no,1.9,flat,0,reversible defect,Negative
+46,female,atypical angina,105,204,false,normal,172,no,0,upsloping,0,normal,Negative
+46,female,asymptomatic,138,243,false,probable or definite left ventricular hypertrophy,152,yes,0,flat,0,normal,Negative
+64,female,asymptomatic,130,303,false,normal,122,no,2,flat,2,normal,Negative
+59,male,asymptomatic,138,271,false,probable or definite left ventricular hypertrophy,182,no,0,upsloping,0,normal,Negative
+41,female,non-angina pain,112,268,false,probable or definite left ventricular hypertrophy,172,yes,0,upsloping,0,normal,Negative
+54,female,non-angina pain,108,267,false,probable or definite left ventricular hypertrophy,167,no,0,upsloping,0,normal,Negative
+39,female,non-angina pain,94,199,false,normal,179,no,0,upsloping,0,normal,Negative
+53,male,asymptomatic,123,282,false,normal,95,yes,2,flat,2,reversible defect,Positive
+63,female,asymptomatic,108,269,false,normal,169,yes,1.8,flat,2,normal,Positive
+34,female,atypical angina,118,210,false,normal,192,no,0.7,upsloping,0,normal,Negative
+47,male,asymptomatic,112,204,false,normal,143,no,0.1,upsloping,0,normal,Negative
+67,female,non-angina pain,152,277,false,normal,172,no,0,upsloping,1,normal,Negative
+54,male,asymptomatic,110,206,false,probable or definite left ventricular hypertrophy,108,yes,0,flat,1,normal,Positive
+66,male,asymptomatic,112,212,false,probable or definite left ventricular hypertrophy,132,yes,0.1,upsloping,1,normal,Positive
+52,female,non-angina pain,136,196,false,probable or definite left ventricular hypertrophy,169,no,0.1,flat,0,normal,Negative
+55,female,asymptomatic,180,327,false,ST-T wave abnormality,117,yes,3.4,flat,0,normal,Positive
+49,male,non-angina pain,118,149,false,probable or definite left ventricular hypertrophy,126,no,0.8,upsloping,3,normal,Positive
+74,female,atypical angina,120,269,false,probable or definite left ventricular hypertrophy,121,yes,0.2,upsloping,1,normal,Negative
+54,female,non-angina pain,160,201,false,normal,163,no,0,upsloping,1,normal,Negative
+54,male,asymptomatic,122,286,false,probable or definite left ventricular hypertrophy,116,yes,3.2,flat,2,normal,Positive
+56,male,asymptomatic,130,283,true,probable or definite left ventricular hypertrophy,103,yes,1.6,downsloping,0,reversible defect,Positive
+46,male,asymptomatic,120,249,false,probable or definite left ventricular hypertrophy,144,no,0.8,upsloping,0,reversible defect,Positive
+49,female,atypical angina,134,271,false,normal,162,no,0,flat,0,normal,Negative
+42,male,atypical angina,120,295,false,normal,162,no,0,upsloping,0,normal,Negative
+41,male,atypical angina,110,235,false,normal,153,no,0,upsloping,0,normal,Negative
+41,female,atypical angina,126,306,false,normal,163,no,0,upsloping,0,normal,Negative
+49,female,asymptomatic,130,269,false,normal,163,no,0,upsloping,0,normal,Negative
+61,male,typical angina,134,234,false,normal,145,no,2.6,flat,2,normal,Positive
+60,female,non-angina pain,120,178,true,normal,96,no,0,upsloping,0,normal,Negative
+67,male,asymptomatic,120,237,false,normal,71,no,1,flat,0,normal,Positive
+58,male,asymptomatic,100,234,false,normal,156,no,0.1,upsloping,1,reversible defect,Positive
+47,male,asymptomatic,110,275,false,probable or definite left ventricular hypertrophy,118,yes,1,flat,1,normal,Positive
+52,male,asymptomatic,125,212,false,normal,168,no,1,upsloping,2,reversible defect,Positive
+62,male,atypical angina,128,208,true,probable or definite left ventricular hypertrophy,140,no,0,upsloping,0,normal,Negative
+57,male,asymptomatic,110,201,false,normal,126,yes,1.5,flat,0,fixed defect,Negative
+58,male,asymptomatic,146,218,false,normal,105,no,2,flat,1,reversible defect,Positive
+64,male,asymptomatic,128,263,false,normal,105,yes,0.2,flat,1,reversible defect,Negative
+51,female,non-angina pain,120,295,false,probable or definite left ventricular hypertrophy,157,no,0.6,upsloping,0,normal,Negative
+43,male,asymptomatic,115,303,false,normal,181,no,1.2,flat,0,normal,Negative
+42,female,non-angina pain,120,209,false,normal,173,no,0,flat,0,normal,Negative
+67,female,asymptomatic,106,223,false,normal,142,no,0.3,upsloping,2,normal,Negative
+76,female,non-angina pain,140,197,false,ST-T wave abnormality,116,no,1.1,flat,0,normal,Negative
+70,male,atypical angina,156,245,false,probable or definite left ventricular hypertrophy,143,no,0,upsloping,0,normal,Negative
+57,male,atypical angina,124,261,false,normal,141,no,0.3,upsloping,0,reversible defect,Positive
+44,female,non-angina pain,118,242,false,normal,149,no,0.3,flat,1,normal,Negative
+58,female,atypical angina,136,319,true,probable or definite left ventricular hypertrophy,152,no,0,upsloping,2,normal,Positive
+60,female,typical angina,150,240,false,normal,171,no,0.9,upsloping,0,normal,Negative
+44,male,non-angina pain,120,226,false,normal,169,no,0,upsloping,0,normal,Negative
+61,male,asymptomatic,138,166,false,probable or definite left ventricular hypertrophy,125,yes,3.6,flat,1,normal,Positive
+42,male,asymptomatic,136,315,false,normal,125,yes,1.8,flat,0,fixed defect,Positive
+52,male,asymptomatic,128,204,true,normal,156,yes,1,flat,0,,Positive
+59,male,non-angina pain,126,218,true,normal,134,no,2.2,flat,1,fixed defect,Positive
+40,male,asymptomatic,152,223,false,normal,181,no,0,upsloping,0,reversible defect,Positive
+42,male,non-angina pain,130,180,false,normal,150,no,0,upsloping,0,normal,Negative
+61,male,asymptomatic,140,207,false,probable or definite left ventricular hypertrophy,138,yes,1.9,upsloping,1,reversible defect,Positive
+66,male,asymptomatic,160,228,false,probable or definite left ventricular hypertrophy,138,no,2.3,upsloping,0,fixed defect,Negative
+46,male,asymptomatic,140,311,false,normal,120,yes,1.8,flat,2,reversible defect,Positive
+71,female,asymptomatic,112,149,false,normal,125,no,1.6,flat,0,normal,Negative
+59,male,typical angina,134,204,false,normal,162,no,0.8,upsloping,2,normal,Positive
+64,male,typical angina,170,227,false,probable or definite left ventricular hypertrophy,155,no,0.6,flat,0,reversible defect,Negative
+66,female,non-angina pain,146,278,false,probable or definite left ventricular hypertrophy,152,no,0,flat,1,normal,Negative
+39,female,non-angina pain,138,220,false,normal,152,no,0,flat,0,normal,Negative
+57,male,atypical angina,154,232,false,probable or definite left ventricular hypertrophy,164,no,0,upsloping,1,normal,Positive
+58,female,asymptomatic,130,197,false,normal,131,no,0.6,flat,0,normal,Negative
+57,male,asymptomatic,110,335,false,normal,143,yes,3,flat,1,reversible defect,Positive
+47,male,non-angina pain,130,253,false,normal,179,no,0,upsloping,0,normal,Negative
+55,female,asymptomatic,128,205,false,ST-T wave abnormality,130,yes,2,flat,1,reversible defect,Positive
+35,male,atypical angina,122,192,false,normal,174,no,0,upsloping,0,normal,Negative
+61,male,asymptomatic,148,203,false,normal,161,no,0,upsloping,1,reversible defect,Positive
+58,male,asymptomatic,114,318,false,ST-T wave abnormality,140,no,4.4,downsloping,3,fixed defect,Positive
+58,female,asymptomatic,170,225,true,probable or definite left ventricular hypertrophy,146,yes,2.8,flat,2,fixed defect,Positive
+58,male,atypical angina,125,220,false,normal,144,no,0.4,flat,,reversible defect,Negative
+56,male,atypical angina,130,221,false,probable or definite left ventricular hypertrophy,163,no,0,upsloping,0,reversible defect,Negative
+56,male,atypical angina,120,240,false,normal,169,no,0,downsloping,0,normal,Negative
+67,male,non-angina pain,152,212,false,probable or definite left ventricular hypertrophy,150,no,0.8,flat,0,reversible defect,Positive
+55,female,atypical angina,132,342,false,normal,166,no,1.2,upsloping,0,normal,Negative
+44,male,asymptomatic,120,169,false,normal,144,yes,2.8,downsloping,0,fixed defect,Positive
+63,male,asymptomatic,140,187,false,probable or definite left ventricular hypertrophy,144,yes,4,upsloping,2,reversible defect,Positive
+63,female,asymptomatic,124,197,false,normal,136,yes,0,flat,0,normal,Positive
+41,male,atypical angina,120,157,false,normal,182,no,0,upsloping,0,normal,Negative
+59,male,asymptomatic,164,176,true,probable or definite left ventricular hypertrophy,90,no,1,flat,2,fixed defect,Positive
+57,female,asymptomatic,140,241,false,normal,123,yes,0.2,flat,0,reversible defect,Positive
+45,male,typical angina,110,264,false,normal,132,no,1.2,flat,0,reversible defect,Positive
+68,male,asymptomatic,144,193,true,normal,141,no,3.4,flat,2,reversible defect,Positive
+57,male,asymptomatic,130,131,false,normal,115,yes,1.2,flat,1,reversible defect,Positive
+57,female,atypical angina,130,236,false,probable or definite left ventricular hypertrophy,174,no,0,flat,1,normal,Positive
+38,male,non-angina pain,138,175,false,normal,173,no,0,upsloping,,normal,Negative
diff --git a/languages/python/examples/basic/heart_disease.modelfox b/languages/python/examples/basic/heart_disease.modelfox
new file mode 100644
index 00000000..f00975e6
Binary files /dev/null and b/languages/python/examples/basic/heart_disease.modelfox differ
diff --git a/languages/python/examples/basic/main.py b/languages/python/examples/basic/main.py
index 77bfd760..4707177e 100644
--- a/languages/python/examples/basic/main.py
+++ b/languages/python/examples/basic/main.py
@@ -1,7 +1,5 @@
 import os
-import json
 import modelfox
-from typing import cast
 
 # Get the path to the .modelfox file.
 model_path = os.path.join(os.path.dirname(__file__), "heart_disease.modelfox")
@@ -9,7 +7,7 @@
 model = modelfox.Model.from_path(model_path)
 
 # Create an example input matching the schema of the CSV file the model was trained on. Here the data is just hard-coded, but in your application you will probably get this from a database or user input.
-input = {
+specimen = {
     "age": 63,
     "gender": "male",
     "chest_pain": "typical angina",
@@ -26,7 +24,8 @@
 }
 
 # Make the prediction!
-output = model.predict(5)
+output = model.predict(specimen)
 
 # Print the output.
-print("Output:", output)
+print("Output.class_name:", output.class_name)
+print("Output.probability:", output.probability)
diff --git a/languages/python/examples/basic/pyrightconfig.json b/languages/python/examples/basic/pyrightconfig.json
new file mode 100644
index 00000000..d268e16a
--- /dev/null
+++ b/languages/python/examples/basic/pyrightconfig.json
@@ -0,0 +1,5 @@
+{
+    "venvPath": "../..",
+    "venv": ".venv"
+}
+
diff --git a/languages/python/examples/basic/train.py b/languages/python/examples/basic/train.py
new file mode 100644
index 00000000..4fbf4e79
--- /dev/null
+++ b/languages/python/examples/basic/train.py
@@ -0,0 +1,47 @@
+import os
+import pyarrow as pa
+from pyarrow.cffi import ffi as arrow_c
+import pandas as pd
+import modelfox
+
+# Get the path to the CSV file.
+csv_path = os.path.join(os.path.dirname(__file__), "heart_disease.csv")
+# Get the path to the .modelfox file.
+model_path = os.path.join(os.path.dirname(__file__), "heart_disease.modelfox")
+
+# # Read the CSV file into a PyArrow.
+df = pd.read_csv(csv_path)
+
+batch = pa.RecordBatch.from_pandas(df)
+reader = pa.ipc.RecordBatchStreamReader.from_batches(batch.schema, [batch])
+
+with arrow_c.new("struct ArrowArrayStream*") as c_stream:
+    c_stream_ptr = int(arrow_c.cast("uintptr_t", c_stream))
+    reader._export_to_c(c_stream_ptr)
+
+    # Train a model.
+    model = modelfox.Model.train(c_stream_ptr, "diagnosis", model_path)
+
+# Create an example input matching the schema of the CSV file the model was trained on. Here the data is just hard-coded, but in your application you will probably get this from a database or user input.
+specimen = {
+    "age": 63,
+    "gender": "male",
+    "chest_pain": "typical angina",
+    "resting_blood_pressure": 145,
+    "cholesterol": 233,
+    "fasting_blood_sugar_greater_than_120": "true",
+    "resting_ecg_result": "probable or definite left ventricular hypertrophy",
+    "exercise_max_heart_rate": 150,
+    "exercise_induced_angina": "no",
+    "exercise_st_depression": 2.3,
+    "exercise_st_slope": "downsloping",
+    "fluoroscopy_vessels_colored": "0",
+    "thallium_stress_test": "fixed defect",
+}
+
+# Make the prediction!
+output = model.predict(specimen)
+
+# Print the output.
+print("Output.class_name:", output.class_name)
+print("Output.probability:", output.probability)
diff --git a/languages/python/lib.rs b/languages/python/lib.rs
index 014c2970..2b055214 100644
--- a/languages/python/lib.rs
+++ b/languages/python/lib.rs
@@ -1,7 +1,8 @@
 use anyhow::anyhow;
+use arrow2::ffi::ArrowArrayStream;
 use memmap::Mmap;
 use pyo3::{prelude::*, type_object::PyTypeObject, types::PyType};
-use std::collections::BTreeMap;
+use std::{collections::BTreeMap, path::PathBuf};
 use url::Url;
 
 #[pymodule]
@@ -118,6 +119,70 @@ impl Model {
 		self.model.id.clone()
 	}
 
+	/**
+	Train a model!
+
+	Args:
+		input (Union[List[`PredictInput`], `PredictInput`]): A predict input is either a single predict input which is a dict from strings to strings or floats or an array of such dicts. The keys should match the columns in the CSV file you trained your model with.
+		options (Optional[`PredictOptions`]): These are the predict options.
+
+	Returns:
+		[Union[List[`PredictOutput`], `PredictOutput`]). Return a single output if `input` was a single input, or an array if `input` was an array of `input`s.
+	*/
+	#[classmethod]
+	#[args(input, target, output, config = "None")]
+	#[pyo3(text_signature = "(input, target, output, config=None)")]
+	pub fn train(
+		cls: &PyType,
+		input: Input,
+		target: String,
+		output: String,
+		config: Option<String>,
+	) -> PyResult<Model> {
+		let mut handle_progress_event = |_progress_event| {};
+		let input = match input {
+			Input::Train(file) => modelfox_core::train::TrainingDataSource::Train(file.into()),
+			Input::TrainAndTest((file_train, file_test)) => {
+				modelfox_core::train::TrainingDataSource::TrainAndTest {
+					train: file_train.into(),
+					test: file_test.into(),
+				}
+			}
+		};
+		// Load the dataset, compute stats, and prepare for training.
+		let mut trainer = modelfox_core::train::Trainer::prepare(
+			modelfox_id::Id::generate(),
+			input,
+			&target,
+			config.map(PathBuf::from).as_deref(),
+			&mut handle_progress_event,
+		)
+		.map_err(ModelFoxError)?;
+		let kill_chip = modelfox_kill_chip::KillChip::new();
+		let train_grid_item_outputs = trainer
+			.train_grid(&kill_chip, &mut handle_progress_event)
+			.map_err(ModelFoxError)?;
+		let model = trainer
+			.test_and_assemble_model(train_grid_item_outputs, &mut handle_progress_event)
+			.map_err(ModelFoxError)?;
+
+		// Write the model to the output path.
+		let output_path = PathBuf::from(output.clone());
+		model.to_path(&output_path).map_err(ModelFoxError)?;
+
+		// Announce that everything worked!
+		eprintln!("Your model was written to {}.", output_path.display());
+		eprintln!(
+            "For help making predictions in your code, read the docs at https://www.modelfox.dev/docs."
+        );
+		eprintln!(
+            "To learn more about how your model works and set up production monitoring, run `modelfox app`."
+        );
+
+		// TODO: load the model more efficiently
+		Model::from_path(cls, output, None)
+	}
+
 	/**
 	Make a prediction!
 
@@ -306,6 +371,29 @@ impl LoadModelOptions {
 	}
 }
 
+#[derive(FromPyObject)]
+enum FileOrArrow {
+	File(String),
+	Arrow(usize),
+}
+
+#[derive(FromPyObject)]
+enum Input {
+	Train(FileOrArrow),
+	TrainAndTest((FileOrArrow, FileOrArrow)),
+}
+
+impl From<FileOrArrow> for modelfox_core::train::FileOrArrow {
+	fn from(value: FileOrArrow) -> modelfox_core::train::FileOrArrow {
+		match value {
+			FileOrArrow::File(file) => modelfox_core::train::FileOrArrow::File(file.into()),
+			FileOrArrow::Arrow(stream_ptr) => {
+				modelfox_core::train::FileOrArrow::Arrow(stream_ptr as *const ArrowArrayStream)
+			}
+		}
+	}
+}
+
 #[derive(FromPyObject)]
 enum PredictInputSingleOrMultiple {
 	Single(PredictInput),
diff --git a/languages/python/modelfox/tangram_python.pyi b/languages/python/modelfox/tangram_python.pyi
index b945044f..731ff469 100644
--- a/languages/python/modelfox/tangram_python.pyi
+++ b/languages/python/modelfox/tangram_python.pyi
@@ -1,6 +1,5 @@
 from typing import (
     Any,
-    cast,
     Dict,
     List,
     Literal,
@@ -26,6 +25,14 @@ class Model:
     ) -> "Model": ...
     @property
     def id(self) -> str: ...
+    @classmethod
+    def train(
+        cls,
+        input: Union[str, Tuple[str, str]],
+        target: str,
+        output: str,
+        config: Optional[str] = None,
+    ) -> "Model": ...
     @overload
     def predict(
         self,