What is a good heuristic to detect if a column in a pandas.DataFrame is categorical?

Question

I\'ve been developing a tool that automatically preprocesses data in pandas.DataFrame format. During this preprocessing step, I want to treat continuous and categorical data dif

Answer 1

You could define which datatypes count as numerics and then exclude the corresponding variables

If initial dataframe is df:

numerics = ['int16', 'int32', 'int64', 'float16', 'float32', 'float64']
dataframe = df.select_dtypes(exclude=numerics)