Generates a vector Poisson random variables with the given parameters. The general syntax for its use is
y = randp(nu),
where nu
is an array containing the rate parameters
for the generated random variables.
A Poisson random variable is generally defined by taking the
limit of a binomial distribution as the sample size becomes
large, with the expected number of successes being fixed (so
that the probability of success decreases as 1/N
).
The Poisson distribution is given by
Here is an exmaple of using randp
to generate some Poisson
random variables, and also using randbin
to do the same
using N=1000
trials to approximate the Poisson result.
--> randp(33*ones(1,10)) ans = <int32> - size: [1 10] Columns 1 to 5 37 38 44 38 35 Columns 6 to 10 32 28 38 26 37 --> randbin(1000*ones(1,10),33/1000*ones(1,10)) ans = <uint32> - size: [1 10] Columns 1 to 5 33 38 40 37 31 Columns 6 to 10 27 26 40 32 28