Scripting Guide - SAS

658 JSL Syntax Reference Appendix A
Random Functions
Returns
The last value placed into the last row.
Argument
none
Example
For Each Row(x=:shuffle = colshuffle());
show(x)
x = 6
In a table with 40 rows, the above script places the values 1-40 randomly into each row of the column
named shuffle. All numbers appear only once. Each time the script is run, the numbers are placed in a
different random order. If the value placed into the row 40 of column shuffle is 6, that number is
assigned to x, as in the above example.
Random Beta(alpha, beta)
Description
Generates a pseudo-random number distributed Beta (alpha, beta)
Random Beta Binomial(n, p, delta)
Description
Returns a random number from a beta binomial distribution for n trials with probability p and
correlation delta. The default value for delta is 0.
Random Binomial(n, p)
Description
Returns random numbers from a binomial distribution with n trials and probability p of the event of
interest occurring.
Random Cauchy(alpha, beta)
Description
Returns a Cauchy distribution with given alpha and beta.
Random Exp()
Description
Returns a random number distributed exponentially from 0 to infinity. Equivalent to the negative log of
Random Uniform.
Random Frechet(mu, sigma)
Description
Returns a random number from a Fréchet distribution with the location mu and scale sigma. The
default values are mu = 0 and sigma = 1.