Logical index multiple columns
9 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Rainer Danner
le 17 Déc 2019
Modifié(e) : Ridwan Alam
le 17 Déc 2019
We have a 111x1402 array A with one or no logical true for each column.
E.g.:
0 0 1 0 ...
1 0 0 0
0 1 0 1
.
.
.
Now we want to get the values for each of the 1402 columns from another array B which is 111x2.
Meaning the row of the 111 where there is a logical true in array A.
E.g.:
500 142
450 -12
305 125
. .
. .
. .
How can we achieve this in Matlab?
3 commentaires
Adam Danz
le 17 Déc 2019
You lost me at , "Now we want to get the values for each of the 1402 columns from another array B which is 111x2." Does array B have 2 or 1402 columns? By "get the values" do you mean the row number of the 1-and-only TRUE in each column?
Réponse acceptée
Ridwan Alam
le 17 Déc 2019
Modifié(e) : Ridwan Alam
le 17 Déc 2019
I believe you are trying to find the row-indices of A, where the row contains a 1, and then extract those rows from B. In that case, this should help:
B(any(A,2),:)
0 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Operators and Elementary Operations dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!