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How to solve this error? Invalid types for comparison.

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Bajdar Nouredine
Bajdar Nouredine 2022년 12월 30일
댓글: Bajdar Nouredine 2023년 1월 3일
I want to calculate accuracy, sensitivity,...,etc based on actual and predicted data, this code is working well for numbered labels but it gives this error for string labels.

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Geoff Hayes
Geoff Hayes 2022년 12월 30일
@Bajdar Nouredine - for string labels, I suspect that you need to use strcmp rather than == for checking to see if two strings are identical (if that is what you mean). You would probably want to check the type (i.e. use isstring) first (of the ACTUAL and PREDICTED arrays) to determine whether you need to use strcmp or ==.
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Geoff Hayes
Geoff Hayes 2022년 12월 31일
@Bajdar Nouredine - the ACTUAL and PREDICTED seem to be categorical arrays. I suppose you could convert to string arrays and then compare the two like
idx = strcmp(string(ACTUAL), string(PREDICTED)');
I had to transpose the PREDICTED array so that both it and ACTUAL are 288x1. idx should reference those elements/indices that match in both arrays.

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