Answers for "pandas make new column based on adding columns"

1

how to add coloumn based on other column

metadata['class_pnemonia'] = metadata['class'].astype('category').map({0: 'HEALTHY ', 1: 'PNEUMONIA'})
Posted by: Guest on August-09-2021
0

How to Create new dataframe columns from existing column

new_df = df.filter(like='n_') 
           .replace(0., np.inf) 
           .apply(lambda x: sorted(x), axis=1, result_type='expand') 
           .replace(np.inf, 0.0)

new_df.columns = ['new_1', 'new_2', 'new_3']

out = pd.concat([df, new_df], axis=1)
Posted by: Guest on September-22-2021

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