Answers for "python add new column based on other columns"

Add new column based on condition on some other column in pandas.

# np.where(condition, value if condition is true, value if condition is false)

df['hasimage'] = np.where(df['photos']!= '[]', True, False)
df.head()

how to add coloumn based on other column

metadata['class_pnemonia'] = metadata['class'].astype('category').map({0: 'HEALTHY ', 1: 'PNEUMONIA'})