dataframe column where condition code example
Example 1: make a condition statement on column pandas
df['color'] = ['red' if x == 'Z' else 'green' for x in df['Set']]
Example 2: or condition in pandas
df1 = df[(df.a != -1) & (df.b != -1)]
Example 3: if condition dataframe python
df.loc[df['age1'] - df['age2'] > 0, 'diff'] = df['age1'] - df['age2']