CODEWITHSUNDEEP
matlab
Muon
Muon

Reputation: 71

Matlab: how to generate large number of samples

x = 10*rand(1,1e6);

n=100;
z = ((sum(x(1:n))-n*5)/std(x)*sqrt(n))*ones(1,1e6);


figure;
cdfplot(z)

So, for vector "z", I want every different numbers of 10,000 samples, when "x" is defined as sets of numbers between 0 to 10. However, if I implement my code, I can only get 10,000 same samples for "z". How can I create 10,000 different samples?

Upvotes: 0

Views: 116

Answers (1)

David
David

Reputation: 8459

Your equation is the sum of x minus 500, divided the the standard deviation of x multiplied by 10, which will give a scalar which is then multiplied by a vector of ones. This will give you the same number repeated one million times.

Your question is very unclear so I am not sure what you want this code to do, however if you want to use 10,000 values between 0 and 10 to calculate each element of z, and you are going to calculate one million random numbers in total, then I think this is what you want:

x=10*rand(1e4,100);

n=100;
z=(sum(x)-5*n)./std(x)*sqrt(n);

cdfplot(z)

Upvotes: 1

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