/Python/Pandas set one column equal to another

Pandas set one column equal to another

In [300]:
df.loc[df['colA'] == 'a', 'colC'] = df['colB']
df['colC'] = df['colC'].fillna(0)
df

Out[300]:
   id colA  colB  colC
0   0    a    13    13
1   1    a    52    52
2   2    b    16     0
3   3    a    34    34
4   4    b   946     0

Source: stackoverflow.com

Similar codes

1 vote147 views1 answer
Dataframe KeyError:
Python
0 vote172 views1 answer
C Pythagorean triples
Python
0 vote130 views1 answer
Bulk file name changer in python
Python
1 vote134 views1 answer
Number of times a value occurs in dataframne
Python
0 vote162 views1 answer
Python get value from list
Python
0 vote130 views1 answer
Switch between frames in tkinter
Python
43 votes154 views6 answers
Df change column names
Python
0 vote129 views1 answer
Python pandas series to title case
Python
0 vote175 views1 answer
Patch loop runner _run_once
Python
1 vote178 views1 answer
How to get ipconfig from python
Python