LabelEncoder: TypeError: '>' not supported between instances of 'float' and 'str'

Question

I\'m facing this error for multiple variables even treating missing values. For example:

le = preprocessing.LabelEncoder()
categorical = list(df.select_dtypes(in         


        

Answer 1

This is due to the series df[cat] containing elements that have varying data types e.g.(strings and/or floats). This could be due to the way the data is read, i.e. numbers are read as float and text as strings or the datatype was float and changed after the fillna operation.

In other words

pandas data type 'Object' indicates mixed types rather than str type

so using the following line:

df[cat] = le.fit_transform(df[cat].astype(str))

should help