Effacer les filtres
Effacer les filtres

remove the NaN numbers from a matrix without loop

2 vues (au cours des 30 derniers jours)
Noushin Farnoud
Noushin Farnoud le 28 Nov 2011
Hello Matlab Users,
In my matrix of NxD dimension, I know that the number of NaNs on each row are the same, however the position of these NaN elements differ between rows. Is there an efficient way to remove NaN's from this matrix while keeping the shape of matrix, as shown in the simplified example:
A=[ 1 2 3 NaN 4 5 NaN; 6 NaN 7 8 NaN 9 10]
and I would like to be able to remove NaNs and get:
A_mod=[ 1 2 3 4 5; 6 7 8 9 10]
I appreciate your help, NF

Réponse acceptée

Walter Roberson
Walter Roberson le 28 Nov 2011
At = A.';
A_mod = reshape(At(~isnan(At)),[],size(A,1)).';

Plus de réponses (1)

bym
bym le 28 Nov 2011
A_mod = A(~isnan(A)); %untested
  3 commentaires
bym
bym le 28 Nov 2011
right
Noushin Farnoud
Noushin Farnoud le 29 Nov 2011
Thank you so much Walter. This worked perfectly!

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