MATLAB: Changing a loop to a function

loop function

for x = 1:100
    for y =  1:61
               b = abs(bsxfun(@minus,q{x},kevin))
               s{x,y} = b;
        end
    end

How do I incorporate the above code as function?

the variables kevin and q are already loaded on the workspace.

thanks

Best Answer

function s=yourfunction(q,kevin)
for x = 1:100
  for y =  1:61
             b = abs(bsxfun(@minus,q{x},kevin))
             s{x,y} = b;
   end
end

save this file as yourfunction.m

To call this function

q= % assign value to q
kevin= % assign value to kevin
s=yourfunction(q,kevin)

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MATLAB: Finding the coordinates of a value in a cell array

There is no reason why S should be a cell array. The last two lines should simply be

s(x,y) = sum(b, 2);

Make it just a normal numerical array (double). Then try this:

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% There may be more than one location, particularly if S is integer.
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[rows3, columns3] = find(s == sorted_s(3))

I really don't know what you're doing with bsxfun, q, kevin, and all that. I urge you to avoid cell arrays unless they're really necessary such as when you have collections of different length strings, or collections of variables where the type of the variable (char, integer, structure, etc.) varies on a element by element basis.

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You should clear memory on the GPU before doing further calculations. For example, if y1 is the gpuArray resulting from the calculation with x1, then you could clear x1 and bring y1 back to the CPU with,

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This will free memory on the GPU for x2.

Best Answer

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MATLAB: Finding the coordinates of a value in a cell array

MATLAB: Gpu array calculation limited memory

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