generating matrices from another matrix

6 Déc 2022
2 Réponses
Mise à jour 6 Déc 2022
1 Vue (30 jours)
Ran in:

0 votes

Ran in:
x = [1,0,0,1,0,1]
x = 1×6
1 0 0 1 0 1
d = diag(x)
d = 6×6
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
I want to generate matrices from the matrix d so that it gives me the shares below;
Share 1:
1 1 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 1 0 0
0 0 0 0 0 0
0 0 0 0 0 1
Share 2:
1 0 1 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 1 0 0
0 0 0 0 0 0
0 0 0 0 0 1
Share 3:
1 0 0 1 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 1 0 0
0 0 0 0 0 0
0 0 0 0 0 1
etc.
But I don't know how to do it. Can somebody help me ?

Connectez-vous pour répondre à cette question.

Réponses (2)

David Hill
David Hill le 6 Déc 2022
Ran in:

0 votes

Ran in:
x = [1,0,0,1,0,1];
d = diag(x);
s(:,:,1)=d;
for k=2:10
t=d;t(k)=1;
s(:,:,k)=t';
end
s
s =
s(:,:,1) = 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 s(:,:,2) = 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 s(:,:,3) = 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 s(:,:,4) = 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 s(:,:,5) = 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 s(:,:,6) = 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 s(:,:,7) = 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 s(:,:,8) = 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 s(:,:,9) = 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 s(:,:,10) = 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
Jan
Jan le 6 Déc 2022

0 votes

x = [1,0,0,1,0,1];
d = diag(x);
Share1 = d;
Share1(1, 2) = 1;
Share2 = d;
Share2(1, 3) = 1;
Share3 = d;
Share3(1, 4) = 1;
Or with a loop:
x = [1,0,0,1,0,1];
d = diag(x);
Share = repmat(d, 1, 1, 4);
for k = 1:3
Share(1, k+1, k) = 1;
end
Now Share(:, :, 2) is e.g. Share2 from the first method. Remember that hiding indices in the names of variables is a bad design.

Catégories

En savoir plus sur MATLAB dans Centre d'aide et File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by