pandas concat dataframe vertically code example

Example 1: concatenate data vertically python

dfmfs = pd.concat([dfmf,dfms], axis=0)

Example 2: dataframe concatenate

# Pandas for Python

df['col1 & col2'] = df['col1']+df['col2']

#Output
#col1	col2	col1 & col2
#A1		A2		A1A2
#B1		B2		B1B2