Let us say I have two Pandas series A and B that I wish to combine into one series. I want to set the values of overlapping rows to 0 (or some other arbitrary value).
0 1
1 1
2 1
Name: A, dtype: int64
2 2
3 2
4 2
Name: B, dtype: int64
Into
0 1
1 1
2 0
3 2
4 2
Name: C, dtype: int64
How would I go about doing this in pandas.
>Solution :
We can do concat then check the dup index , drop reindex back
s = pd.concat([a,b])
s = s[~s.index.duplicated(keep=False)].reindex(s.index.unique(),fill_value=0)
out
Out[189]:
0 1
1 1
2 0
3 2
4 2
dtype: int64