Fix 02 solutions

Author: vsreekanti

Diff for: solutions/Ground-02.ipynb

@@ -177,7 +177,9 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {},
+   "metadata": {
+    "collapsed": true
+   },
    "outputs": [],
    "source": [
     "# now that we know the Ground version of the dataset, let's also inspect the schema of that dataset\n",
@@ -320,10 +322,9 @@
     "import numpy as np\n",
     "\n",
     "def clean(df):\n",
-    "    temp = df[\"col1\"].copy()\n",
-    "    df[\"col1\"] = df[\"col2\"]\n",
-    "    df[\"col2\"] = temp\n",
-    "    # your solution here"
+    "    temp = df[\"code\"].copy()\n",
+    "    df[\"code\"] = df[\"country\"]\n",
+    "    df[\"country\"] = temp"
    ]
   },
   {