how can i remove efficiently nan values from columns without deleting the column itself ?

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pavan sunder
pavan sunder 2016-10-21
回答： Andrei Bobrov 2016-10-21
for ex :
A = 1 2 3
nan 4 nan
nan nan 5
4 5 6
required output
A = 1 2 3
4 4 5
5 6
  1 个评论
James Tursa
James Tursa 2016-10-21
编辑：James Tursa 2016-10-21
Your posted matrix result is not rectangular. You can't have this in a numeric matrix. Is this really what you want for an output or is this a typo? I.e., do you really want the resulting columns to potentially have different numbers of elements? (In which case maybe a cell array would be what you want).

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回答（1 个）

Andrei Bobrov
Andrei Bobrov 2016-10-21
i0 = ~isnan(A);
ii = sort(i0,'descend');
out = nan(size(A));
out(ii)=A(i0);

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