Creating a matrix row by row with for loop how?
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
So I'm trying to figure out a way to create a matrix of x by y. Say x =[1 2 3 ] and y = [5 6 7 9 10 11]. I'm trying to get my script to shift the longest array y,to the right according to the length of x. So my matrix would look like this:
Newy =[5 6 7 8 9 10 11 0 0;
0 5 6 7 8 9 10 11 0;
0 0 5 6 7 8 9 10 11].
I know how to iterate the y array in respect to the length of x by doing :
y(mod((1:end)-i-1,end)+1)
I just can't figure out how to create a matrix row by row, I tried:
y1=[y zeros(1,length(x)-1)];
For i= 0:length(x)-1
y1(i,:) =y(mod((1:end)-i-1,end)+1);
But I keep generating errors . Any help would be much appreciated!
1 commentaire
Azzi Abdelmalek
le 15 Fév 2013
Modifié(e) : Azzi Abdelmalek
le 15 Fév 2013
y = [5 6 7 9 10 11].
Why |[5 6 7 8 9 10 11 0 0; ?
Réponse acceptée
Image Analyst
le 15 Fév 2013
Try this:
x =[1 2 3 ]
y = [5 6 7 9 10 11]
ly = length(y);
y1 = zeros(length(x), max(x)+ly-1)
for row = 1 : length(x)
y1(row, x(row):x(row)+ly-1) = y;
end
y1
In the command window:
y1 =
5 6 7 9 10 11 0 0
0 5 6 7 9 10 11 0
0 0 5 6 7 9 10 11
(I hope I'm not allowing you to cheat by doing your homework for you!)
0 commentaires
Plus de réponses (1)
Voir également
Catégories
En savoir plus sur Logical 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!