replace nan values with mean pandas code example

Example 1: replace nan in pandas

df['DataFrame Column'] = df['DataFrame Column'].fillna(0)

Example 2: how to fill nas on a dataframe with median

df.fillna(df.mean(), inplace=True)

Example 3: python fillna with mean in a dataframe

df["newColumName"] = df["originalColumnName"].fillna(df["originalColumnName"].mean())

Example 4: replace error with nan pandas

df['workclass'].replace('?', np.NaN)