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This question is similar to this question posted earlier. The difference is that I want to change value in a cell that index column is not unique. For example:

   x  y
A  1  5
B  4  6
C  0  3
C  5  9

I want to replace 9 with 100 and get:

   x  y
A  1  5
B  4  6
C  0  3
C  5  100

Any suggestions?

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NamAshena
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1 Answers1

1

You could go for the ordinal indexes (they are always unique) like so:

In [13]: df.iloc[3, 1] = 100

In [14]: df
Out[14]: 
   x    y
A  1    5
B  4    6
C  0    3
C  5  100
Israel Unterman
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