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How to create a cumulative frequency array

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BigWaffle
BigWaffle on 28 Apr 2021
Commented: BigWaffle on 30 Apr 2021
I am trying to create an array to compute the cumulative frequency of array Z, which are less than or equal to the time in minutes specified by the minutes array, V.
X1= sqrt(rand(1,1000));
X2= normrnd(20,5, 1,1000);
w= rand(1,1000);
X3 = (-log(1- w));
sz = [1 1000];
X4 = unifrnd(4,15, sz);
Z=X1+X2+X3+X4; %(note: Z is an array with 1000 values in one row)
V = linspace(1, 1000, 1000); %array V

Accepted Answer

Jeff Miller
Jeff Miller on 28 Apr 2021
This is inelegant, but it works:
cumFreq = zeros(size(V));
for i=1:numel(V)
cumFreq(i) = sum(Z<V(i));
end
  5 Comments
BigWaffle
BigWaffle on 30 Apr 2021
thanks to your guidance. it was working just needed a tweak

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