replace values of a particular index in a dataframe with other value code example
Example 1: replace column values pandas
df['column'] = df['column'].str.replace(',','-')
df
Example 2: replace value of dataframe with another column
df['col1'] = np.where(df['col1'] == 0, df['col2'], df['col1'])
df['col1'] = np.where(df['col1'] == 0, df['col3'], df['col1'])
Example 3: pandas find fifth caracter in field and change cell based on that number
data['result'] = data['result'].map(lambda x: x.lstrip('+-').rstrip('aAbBcC'))