pandas select all rows where column value equals two conditions code example
Example 1: compute value based on condition of existing column dataframe
conditions = [
(df['likes_count'] <= 2),
(df['likes_count'] > 2) & (df['likes_count'] <= 9),
(df['likes_count'] > 9) & (df['likes_count'] <= 15),
(df['likes_count'] > 15)
]
values = ['tier_4', 'tier_3', 'tier_2', 'tier_1']
df['tier'] = np.select(conditions, values)
df.head()
Example 2: python pandas check if two columns are equal
df = pd.DataFrame([[2, 2], [3, 6]], columns = ["col1", "col2"])