apply lambda if code example

Example 1: apply lambda with if

df['new column name'] = df['column name'].apply(lambda x: 'value if condition is met' if x condition else 'value if condition is not met')

Example 2: make a condition statement on column pandas

df['color'] = ['red' if x == 'Z' else 'green' for x in df['Set']]

Example 3: if condition dataframe python

df.loc[df['age1'] - df['age2'] > 0, 'diff'] = df['age1'] - df['age2']

Example 4: if condition in python lambda

func = lambda element: (expression and DoSomething) or DoSomethingIfExpressionIsFalse