could anyone help me how to check the size of bigger matrix and run the code accordingly.

Question

jaah navi 2019-5-11

编辑： Rik 2019-5-12

I am having two matrices of different sizes A and B generated by the code.

When I run the code in some cases, size of A will be greater than B and in some cases size of B will be greater than A.

case1,when A=[4x2] and B=[1x2],I have done with the following code

[jj,kk]=size(A)

[jjj,kkk]=size(B)

zz=zeros(jj,kk)

zz(1:jjj,1:kkk)=B

C=(A-zz)

case 2, when B=[4x2] and A=[1x2],I have done with the following code

[jj,kk]=size(B)

[jjj,kkk]=size(A)

zz=zeros(jj,kk)

zz(1:jjj,1:kkk)=A

C=(B-zz)

Using these two cases I need to first check which matrix size is bigger and based upon it i need to choose either case 1 code or case 2 code.

could anyone please help me on this

Answer 1

Rik 2019-5-11

编辑：Rik 2019-5-12

This code should work:

if numel(A) > numel(B)
    A_=A;B_=B;
else
    A_=B;B_=A;
end
[jj,kk]=size(A_)
[jjj,kkk]=size(B_);
zz=zeros(jj,kk);
zz(1:jjj,1:kkk)=B_;
C=(A_-zz)