How to replace 2x2 zero sub matrices by different 2x2 matrices ?

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parag gupta 2019-3-18

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编辑： parag gupta 2019-3-18

How to replace 2x2 zero submatrix of B with 2x2 matrices different matrice.I have 12 matrices of size 2x2 and want to replace zeros of B by those matrices.

B =

0.8776 0.6513 0 0 0 0 0 0

0.0144 0.8646 0 0 0 0 0 0

0 0 0.2943 0.0560 0 0 0 0

0 0 0.1799 0.8169 0 0 0 0

0 0 0 0 0.9263 0.5289 0 0

0 0 0 0 0.0682 0.6944 0 0

0 0 0 0 0 0 0.5811 0.2124

0 0 0 0 0 0 0.6372 0.5433

Thanks

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Guillaume 2019-3-18

The loop would imply that you want to create 12 matrices. However, since it overwrites the matrices in the previous step, you'll end up with only 3 matrices. The ones created on the last step of the loop.

While you say that you have 12 matrices, your I want solution in this form implies that there are only 3 matrices, which are rotated on each row.

A bit confusing as to what you have.

I doubt it will be difficult to do what you want, but the method will vary depending on exactly what it is that you want. So, please clarify.

parag gupta 2019-3-18

编辑：parag gupta 2019-3-18

oops, u r right it will overwites the matrices.Could u pls tell what to do so that I end up with all 12 matrices?

sorry for the confusion, I want this matrix at the end.

x matrix 1 matrix 2 matrix 3

matrix 4 x matrix 5 matrix 6

matrix 7 matrix 8 x matrix 9

matrix 10 matrix 11 matrix 12 x

thanks you so much :)

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采纳的回答

Matt J 2019-3-18

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编辑：Matt J 2019-3-18

在 MATLAB Online 中打开

basically i want solution in this form

x p1 p2 p3

p1 x p2 p3

p1 p2 x p3

p1 p2 p3 x

C={zeros(2), p1,p2,p3};
result=B+cell2mat( C(toeplitz(1:4))  );

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Matt J 2019-3-18

在 MATLAB Online 中打开

Very similar to things I've already mentioned:

B(B==0)=cat(3,matrix4,matrix7,matrix10,matrix1,matrix8,matrix11,...
              matrix2,matrix5,matrix12,matrix3,matrix6,matrix9);

parag gupta 2019-3-18

thank you so much . :)

haha..sorry for the confusion.

thanks again for all your help..love u :)

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