Python Pandas - Changing some column types to categories

Question

I have fed the following CSV file into iPython Notebook:

public = pd.read_csv(\"categories.csv\")
public

I\'ve also imported pandas as pd, nump

Answer 1

Sometimes, you just have to use a for-loop:

for col in ['parks', 'playgrounds', 'sports', 'roading']:
    public[col] = public[col].astype('category')