How to assign values to a multidimensional array?

Is there a faster way how to assign values to every page of a multidimensional array, e.g. by using for loop. I have following problem:

deltaAlpha=0.5;
stiffness_element=zeros(4,4,10);
stiffness=[1459759416.70691  182469927.088364  -1459759416.70691  182469927.088364
          182469927.088364  44529146.0388045  -182469927.088364  1088335.73328652
          -1459759416.70691  -182469927.088364  1459759416.70691  -182469927.088364
           182469927.088364  1088335.73328652  -182469927.088364  44529146.0388045];

I need to assign to every page of matrix stiffness_element the matrix stiffness, but at page 2 the columns and rows need to be multiplied by deltaAlpha. Is there a faster way how to do this instead of writting this:

stiffness_element(:,:,1)=stiffness;
stiffness_element(:,:,2)=deltaAlpha*stiffness;
stiffness_element(:,:,3)=stiffness;
stiffness_element(:,:,4)=stiffness;
stiffness_element(:,:,5)=stiffness;
stiffness_element(:,:,6)=stiffness;
stiffness_element(:,:,7)=stiffness;
stiffness_element(:,:,8)=stiffness;
stiffness_element(:,:,9)=stiffness;
stiffness_element(:,:,10)=stiffness;

I tryed to use for loop, just to assign values to every page of the big matrix, something like this:

for i = 1:length(stiffness_element)
          stiffness_element(:,:,i) = stiffness;
 end

but at the end I got a message: Assignment has fewer non-singleton rhs dimensions than non-singleton subscripts. Any suggestions how could I assign stiffness to stiffness_element and by taking into account multiplying the second page by deltaAlpha? thanks!

Answer 1

[Guillaume]

Probably, the easiest way is to do:

stiffness_element = repmat(stiffness, [1 1 10]);
stiffness_element(:, :, 2) = deltaAlpha * stiffness_element(:, :, 2);

[EB]

Thanks a lot! It is working, and it's so simple.