Effacer les filtres
Effacer les filtres

Deleting complete row having negative integer at any position

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GEOINFORMATICS
GEOINFORMATICS le 3 Oct 2013
Commenté : Sean de Wolski le 14 Oct 2013
Hi,,, i have a matrix of 596684*4 . at the 4th col of matrix, sometime there appears a -ive number like -2445445, and i want to remove the whole row which contains this number. can anyone help me. Thanks

Réponses (1)

Nishitha Ayyalapu
Nishitha Ayyalapu le 14 Oct 2013
Here is an example code that would help:
A = [22 33 43 55;
11 22 -33 44;
55 22 33 -44;
99 88 77 66];
[row_neg col_neg] = find(A<0);
A(row_neg,:) = [];
This should manipulate A to
A =
22 33 43 55
99 88 77 66
  1 commentaire
Sean de Wolski
Sean de Wolski le 14 Oct 2013
Modifié(e) : Sean de Wolski le 14 Oct 2013
No reason for find here, logical indexing will work just fine:
A(any(A<0,2),:) = [];

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