How do I transform 1D array into 2D array without using for loops in Matlab?

Hi,

I've got a 1D array containing a large number of values, and I'd like to transform it to a 2D array where each sequence of 12 values is put in a row, so the size of the 2D array would be:
 number of rows = number of values/12
 number of columns = 12

I currently make this operation with a for loop, but it takes time for arrays containing large amount of data.

Someone would have an idea to optimize it?

for nrow=1:length(myarray)/12,
   for ncol=1:12,
      newarray(nrow,ncol)=myarray((nrow-1)*12+ncol);
   end
end

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