if statement pandas code example
Example 1: pandas lambda if else
df['equal_or_lower_than_4?'] = df['set_of_numbers'].apply(lambda x: 'True' if x <= 4 else 'False')
Example 2: make a condition statement on column pandas
df['color'] = ['red' if x == 'Z' else 'green' for x in df['Set']]
Example 3: make a condition statement on column pandas
df.loc[df['column name'] condition, 'new column name'] = 'value if condition is met'
Example 4: if condition dataframe python
df.loc[df['age1'] - df['age2'] > 0, 'diff'] = df['age1'] - df['age2']