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find function exceeds matrix dimensions?

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Sarah Goldsmith
Sarah Goldsmith 2016-7-31
评论： Sarah Goldsmith 2016-7-31
I'm trying to remove rows that contain Nans in two columns of a dataset. The dataset itself is 9895 x 26, but when I run the following code,
hh1 = hh1(~isnan(hh1(:, 19:20)),:);
it returns 'Index exceeds matrix dimensions' Further investigation revealed that when I run
find(~isnan(hh1(:, 19:20)))
it returns values ranging from 7037 to 19790, which is a problem because, as previously mentioned, the size of the dataset is only 9895 x 26.
Any idea what's going on?

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Azzi Abdelmalek
Azzi Abdelmalek 2016-7-31
编辑：Azzi Abdelmalek 2016-7-31
Depending on what you want, if the two columns should be equal to nan
hh1 = hh1(~all(isnan(hh1(:,19:20)),2),:)
%or if at least one column is equal to nan
hh1 = hh1(~any(isnan(hh1(:,19:20)),2),:)

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