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Exercise

Encoding categorical variables

There are couple of columns in the UFO dataset that need to be encoded before they can be modeled through scikit-learn. You'll do that transformation here, using both binary and one-hot encoding methods.

Instructions

100 XP
  • Using apply(), write a conditional lambda function that returns a 1 if the value is "us", else return 0.
  • Print out the number of .unique() values in the type column.
  • Using pd.get_dummies(), create a one-hot encoded set of the type column.
  • Finally, use pd.concat() to concatenate the type_set encoded variables to the ufo dataset.