CODEWITHSUNDEEP
pythonpandasdataframe
archer
archer

Reputation: 49

Cannot update column value of pandas

I am trying to update the values of a data frame by using:

train.iloc[test_idx][target] = clf.predict(X.iloc[test_idx])

clf.predict() returns a numpy array of the length text_idx. This fails to update the value at train.iloc[test_idx][target] and I do not know why. What also confuses me is that if I do something like train[target] = somenumpyarray then this works.

Upvotes: 0

Views: 142

Answers (1)

mojo-3
mojo-3

Reputation: 40

Try reversing the selectors and select by column first, this should fix the issue.

train.target.iloc[test_idx] = clf.predict(X.iloc[test_idx])

Upvotes: 2

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