how to write code to add some scalar value to each 4by4 cell of a dataset?

Question

bidlee devi 2018-5-4

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编辑： Jan 2018-5-13

hello everyone. need help.I want to add some scalar value to each 4by4 cell of size 64by64. for example : add 10 to first 4by4 cell . then add 20 to the other 4by4 cell and so forth. How do i write the code in matlab. I am new so need your help. Thanks!

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Jan 2018-5-13

编辑：Jan 2018-5-13

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It is not clear to me, what the inputs are. Posting a small example would be useful. Perhaps:

C = cell(4, 4);
for iC = 1:4
  C{iC} = rand(64, 64);
end

If this matches your inputs, what exactly is "the first 4by4 cell" and what is "the other"?

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Answer 1

Jan 2018-5-13

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编辑：Jan 2018-5-13

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If these are your inputs (see my comment):

C = cell(4, 4);
for iC = 1:4
  C{iC} = rand(64, 64);
end
toAdd = [10, 20, 30, 40];

then a loop is working:

for iC = 1:numel(C)
  C{iC} = C{iC} + toAdd(iC);
end

Or maybe you mean:

toAdd = 10 * (1:(64*64));  % Example data
for iC = 1:numel(C)
  C{iC} = C{iC} + toAdd;
end

This can be achieve by arrayfun or cellfun also, but I consider a loop to be more clear and easy.

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Answer 2

Ameer Hamza 2018-5-13

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You can do it using arrayfun():

cellArray = ... % 64x64 array of cells
% define a 64x64 'addMatrix', its elememnts will be added to corrosponing cell of 'cellArray'
addMatrix = [10 20 30, ..... 640;
           ....;
           ....;
           ....]; % define a 64x64 matrix
result = arrayfun(@(x, y) x{:} + y, cellArray, addMatrix, 'UniformOutput', 0);