session 1

Author: dougbarrows

IntroToPython/inst/extdata/presRaw/Session1.Rmd

@@ -1100,7 +1100,7 @@ myset1.difference(myset2)
 ## Set vs List
 
 * A list allows duplicate elements and maintains their order
-* A set ensures element uniqueness without any guaranteed order
+* A set ensures element uniqueness without any guaranteed order, good for membership testing
 
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 ## Time for an exercise!