MATLAB: Replacing values from a separate vector to multiple repeated values in another vector

MATLABreplacing multiple values

I have a vector in the form of
x = [1 0 0 0 0 0 0 1 0 1 0 0 0 0 1 1 0 0 1 0];
and another vector resulted in from data manipulation,
y = [7.83 9 3.2 15.2 3.3];
I want these two vectors to produce another vector (replacing all 0s),
z = [0 7.83 7.83 7.83 7.83 7.83 7.83 0 9 0 3.2 3.2 3.2 3.2 0 0 15.2 15.2 0 3.3];
I started the code by getting the complement of vector x.
Appreacite any help.

Best Answer

index=find(x==0);
idx=find(diff(index)~=1);
z=x;
z(z==0)=repelem(y,[idx(1) diff(idx) numel(index)-idx(end)]);
z(z==1)=0
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