how to concatenate two columns with a sepearator pandas code example
Example 1: pandas dataframe add two columns int and string
df1 = df['1st Column Name'].map(str) + df['2nd Column Name'].map(str) + ...Example 2: pandas dataframe add two columns int and string
df = df['Day'].map(str) + '-' + df['Month'].map(str) + '-' + df['Year'].map(str)