Subtract from a cell array of vectors a vector

Hi everyone,

I have a cell arrays A of 2x100. Each element inside the cell arrays is a scalar. I need to subtract a 2x1 cell arrays of scalars from the each of column of the cell arrays of A. Do you know how I can do it? I've tried the following but it doesn't work

for t=1:100;
for k=1:2;
  C{k,t}(1,1)=(1+A{k,t})-B{k,1}
end;
end;

In addition, do you know how can I subtract from A a vector 2x100 say E? I've tried the following without any success

    for t=1:100;
    for k=1:2;
    D{k}=bsxfun(@minus,(1+A{k,t})',E(t,1));
    end;
    end;

Thanks in advance.

Answer 1

[James Tursa]

Does this do what you want?

A = 2x100 cell array of scalars
B = 2x1   cell array of scalars
C = mat2cell(bsxfun(@minus,cell2mat(A),cell2mat(B)),ones(1,2),ones(1,100));

Or for R2016b you can skip the bsxfun:

C = mat2cell(cell2mat(A)-cell2mat(B),ones(1,2),ones(1,100));

[gsourop]

It worked perfect! Thanks a lot! Could you help me please with my second question? do you know how can I subtract from A a vector 1x100 say E? I've tried the following without any success

    for t=1:100;
    for k=1:2;
    D{k}=bsxfun(@minus,(1+A{k,t})',E(t,1));
    end;
    end;

[James Tursa]

Assuming I understand your question, E is a 1x100 double. So you don't need the cell2mat for that part. Other than that it is pretty much the same. E.g.,

A = 2x100 cell array of scalars
E = 1x100 vector
C = mat2cell(bsxfun(@minus,cell2mat(A),E),ones(1,2),ones(1,100));

or on R2016b you can again skip the bsxfun part:

C = mat2cell(cell2mat(A)-E,ones(1,2),ones(1,100));