Remove a column if it starts with NaN

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Olga
Olga 2014-8-27
评论： Guillaume 2014-8-27
Could you please help me find a way to remove a entire column of a matrix if it starts with Nan
Thank you for any help!

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回答（3 个）

Guillaume
Guillaume 2014-8-27
m(:, isnan(m(1, :))) = [];
Image Analyst
Image Analyst 2014-8-27
Try this:
A = [1 nan 3 nan;
1 5 6 0;
2 2 3 4;
2 5 6 0;
2 6 7 8;
3 1 2 3;
4 1 2 3]
badColumns = isnan(A(1,:)) % Find cols with nan in top row.
fixedA = A(:,~badColumns) % Get all except the bad columns.
Olga
Olga 2014-8-27
Thank you very much! It worked!
  1 个评论
Guillaume
Guillaume 2014-8-27
Whichever answer worked best for you (they're both valid), you should accept. (and you should have commented on instead of creating a new answer)

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