genarate random integers from normal distribution

Question

joy 2014-6-8

编辑： John D'Errico 2014-6-8

Hi,

I want to generate a set of 50 random variable having std_deviation 0.1 and mean 0.5 from a normal distribution...it can be float

but I want to generate 50 random integers with std_deviation 3500 and mean 4000..

how to do the both with

randn?

any idea, pls share..thanks

regrads

Answer 1

John D'Errico 2014-6-8

编辑：John D'Errico 2014-6-8

help randn

will tell you how to generate a set with a given mean and variance. Why not read the help? Or take a basic class in probability & statistics.

As for integers, you cannot do so. A normal distribution is CONTINUOUS. That says your question has no meaning in mathematics.

You can generate integers that are APPROXIMATELY normally distributed. Round will do that for you here.