How to do row level operation and append to existing DataFrame in Pandas?

Question

I have a dataframe like:

      a     b     c     d
0     1     2     3     4
1     4     7     2     8
2     5     7     6     9

I want to make a new dataframe like

      a     b     c     d  sum multiply
0     1     2     3     4  10   24
1     4     7     2     8  21   448
2     5     7     6     9  27   1890

Where sum=a+b+c+d and multiply=abc*d

I also have sqrt dividend in the calculation while I receive 91 return converter(self.iloc[0]) 92 raise TypeError("cannot convert the series to " ---> 93 "{0}".format(str(converter))) error — NewPy, Apr 05 '20 at 16:13

score 0 · Answer 1 · answered Apr 05 '20 at 15:58

0

df['sum'] = df['a']+df['b']+df['c']+df['d']
df['multiply'] = df['a']*df['b']*df['c']*df['d']

answered Apr 05 '20 at 15:58

some_programmer

1 Answers1