MATLAB: Random number generator help

MATLABrandom number generator

what is the implication of ">0.2" and "*2-1" in (rand(N)>0.2)*2-1 ?

Best Answer

Suppose N=[0.11 0.23 0.25 0.05 0.5]

N>=0.2

The result is

0 1 1 0 1

If you multiply the result by 2 you will get

0 2 2 0 2

and so on

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MATLAB: Generate random sequence number with condition

P=interp1([0 0.9 1],[0.1 2 3.5],'pchip','pp');
n = 1e6; % 200 in your case
% here is the array of random
r=ppval(P,rand(1,n));
% this should return value close to 0.1 
sum(r>=2)/length(r)

MATLAB: How to create a column vector of random numbers with interval [-0.1;0.1], with N elements

N = whatever
de = whatever
result = rand(N,1)*(2*de) - de;

Best Answer

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MATLAB: Generate random sequence number with condition

MATLAB: How to create a column vector of random numbers with interval [-0.1;0.1], with N elements

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