How to use reshape

Hi, I have a matrix m (x, y, z) with a size of 12x6x5. I would like to reshape the matrix having other z-values given in f (5x1 vector). I have written the reshape command like this: g=reshape(f, [m],3) This is the error message: Error using reshape. Size arguments must be integer scalars. I don't understand the error. Thanks for your help!

[Adam]

I don't understand what you are trying to do. Reshape simply changes the shape of one matrix as shown in

doc reshape

What you are wanting to do seems more complicated. Can you give an example of what you are trying to do and what result you are expecting from what inputs.

[Azzi Abdelmalek]

What is [m] ?

[Star Strider]

It appears that ‘m’ is the (12x6x5) original matrix.

We need to know the desired result.

[anne d.]

@Azzi: m is the matrix with dimensions x, y, z (12x6x5) @Adam: x is longitude, y is latitude and z is depth. each x, y, z correspond to the center of the grid box. but i would like to use the top of each grid box instead of the center. therefore, i defined the top of each box in f, which is a 5x1 vector. all in all, i would like to use the same x and y values but the top of each box which is given in f.

Answer 1

[Rik]

Assuming you want to change all 3rd dimension values to the vector f, this code should do what you want.

for n=1:length(f)
    g(:,:,n)=f(n);
end

You can remove the loop by using repmat on the result of reshape(f,[1 1 5]) or permute(f,[2 3 1]).