MATLAB: R = randi(10,100,1) but using non-uniform distribution

non uniform distributionrandom

How to create random number from a range non-uniformly distributed?

Thanks!

Best Answer

As Jan comments, there are literally an infinite number of possible distributions. (In particular, do you want integers or real numbers in that range?)

If you have the Statistics Toolbox, there are several random number generators available. You can type

>> doc random

to see a list of possibilities. Another command that might be handy is randsample(). You can specify a particular frequency distribution for the random numbers. See

>> doc randsample

for details.

Related Solutions

MATLAB: I Just need Code For non-uniform Sampling,Any help

You can draw numbers from a random sample with weighted probability by using

y = randsample(population,k,true,w)

For example,

population = 1:20; 
k = 10; %draw 10 samples from the population
w = linspace(0,1,numel(population)); % the probability of drawing each element in the population
y = randsample(population,k,true,w)

Or you could draw random numbers from a normal distribution using X = randn(n).

For example, this line below draws 20 random values from a normal distribution centered at 7 with standard deviation of 5.

x = 5 * randn(1,20) + 7

MATLAB: Generate real random numbers

Such as randn() ? Or one of the random distribution tools in the Statistics Toolbox ?

Best Answer

Related Solutions

MATLAB: I Just need Code For non-uniform Sampling,Any help

MATLAB: Generate real random numbers

Related Question