Insert Zeros into Random Number Stream

The cm_insert_zeros model uses MATLAB® code and a MATLAB Function block to insert zeros into a random number stream.

The MATLAB Function block, labeled Insert Zero in this model, executes this code to insert zeros in the random number stream input to it.

MATLAB Code Run by Insert Zero

function y = fcn(u,insertZeroVector)
  numSeg = length(u)/sum(insertZeroVector);
  c = zeros(length(insertZeroVector), numSeg,'like',u);
  c(logical(insertZeroVector),:) = reshape(u,[],numSeg);
  y = c(:);
end

The length of the input must be an integer multiple of the number of 1s in the Insert zero vector parameter. The block repeats the Insert zero vector, when necessary, to output all input elements. For this example, the Insert zero vector parameter is set to [1 1 0 1 0 1]'.