How to apply at each cell a division

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Stefano Alberti 2016-2-15

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评论： dpb 2016-2-15

Hi, I've a 1500x1500 double cells, I want to apply a division for a number took it from a 4000x1 double cells, and do it in a for cycle.

I wrote a code that open my files from a directory, but I know that I have to use cellfun comand to do that.

Thanks in advance

Stefano

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Stefano Alberti 2016-2-15

在 MATLAB Online 中打开

I've a 4000 matrix of 1500x1500, and it rappresent a displacement. I've a 1 matrix of 4000x1, and it rappresent the time.

I'd create a matrix with each cells its the resulf ot division of first matrix/first value of second matrix.

                e.g.
                  matrix 1 = 1 2 3
                             4 5 6  
                             ...
                  matrix 2 = 7
                             8
                             9
                             10
                             11
                             12
                             ....
                  matrios result = 1/7 2/8 3/9
                                   4/10 5/11 6/12
                                    ...

Do it in a for cycle for each matrix.

It si possible ?

Thanks

dpb 2016-2-15

在 MATLAB Online 中打开

Still, 1500 X 1500 ~= 4000??? (Actually, of course, 1500^2 is much, much larger than 4000.)

As for the element-wise division, for the first N elements of the first it's possible...

M=matrix1.';           % reorient to column major
M4K=M(1:4000);         % save first 4K points
matrix2=M4K./matrix2;  % do division as illustrated by example

But, still how to treat the 2.246 million other values from the original 2.25M-element 1500-square array would be a mystery.

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