Saving selected array of data from set of output array

Hello

My problem looks similar to the following -

for ii = 1:1000
    x = cos(ii)*{a 1by1000 array}
end

Now, out of this 1000 results for x, i want to save only few data sets; like at ii=1,100,200,300....,1000. The problem that i am handling in real has millions of loops but i need just a few array. Can anyone please help me to get a solution.

Thanks in advance.

Answer 1

[Azzi Abdelmalek]

   a=rand(1,1000);
   cii=cos([1 100:100:1000]),
   x=bsxfun(@times,a,cii')  % result = array 11x1000

[SAZZAD HOSSAIN]

Hi Azzi

You seem to have removed the codes for saving the arrays selectively. Could you please post that again.

Thanks

Answer 2

[Mani]

create an array of the values you need at different locations eg : i=1:100: number_of_values

then create a new array to store them eg: for k= 1:length(number_of_values) req_values(k)= all_values(i); end