Problem 43708. Replace all odd numbers with NaN

Created by Iik Jae Park

Solve Later

Replace all odd numbers in the vector or matrix with NaN. For example, if

 x = [1 3 4 5 8 11];

then return

 y = [NaN NaN 4 NaN 8 Nan];

Solve

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141 Solutions
80 Solvers

Last Solution submitted on May 10, 2025

Last 200 Solutions

Problem Comments

9 Comments

9 Comments

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Peng Liu on 4 Dec 2016

Please use isequaln instead of isequal when checking equality for NaN values.

Peng Liu on 4 Dec 2016

P.S. I accidentally clicked "Like" to this problem and then realized that the "Unlike" function doesn't work. Also, the "Delete" comment function still doesn't work despite the fact that this has been reported since September or even earlier.

goc3 on 5 Dec 2016

This problem has been improved and the test suite fixed.

James on 2 Feb 2017

Peng, the problem with deleting your own comments has been an issue for three or four years now. I didn't realize that Unlike isn't working either, though.

Jan Orwat on 2 Feb 2017

James, Peng, that surprises me. I thought it doesn't work since the new layout introduction. I had no problems with deleting my comments before. (or it's just a typo, and James meant months)

David Verrelli on 2 Nov 2017

James, Peng, I have also reported these bugs (unable to "delete", unable to "unlike"), and can confirm that (at least for me) they are still a problem. A further complication is that there is no dedicated 'channel' for reporting Cody issues. Perhaps also a Cody-specific discussion forum would be helpful. —DIV

David Verrelli on 2 Nov 2017

FYI: https://au.mathworks.com/matlabcentral/answers/350695-how-can-i-delete-a-comment-on-a-submission-on-file-exchange

Peng Liu on 3 Nov 2017

@David I agree with you that there is no dedicated channel for reporting Cody bugs, and your idea of Cody-specific discussion forum is awesome. The unable to "delete", unable to "unlike" are longstanding bugs for more than a year now. I hope this should catch the Cody term's attention.

David Verrelli on 11 Mar 2018

FYI (again), in lieu of a proper forum, occasionally there are some interesting discussions in the Problem Comments sections of individual problems. An example is https://www.mathworks.com/matlabcentral/cody/problems/2959-divide-by-4 . They are, however, extremely difficult to find. Regards, DIV.

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Problem 43708. Replace all odd numbers with NaN

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Problem 43708. Replace all odd numbers with NaN

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