This generates tables of different random distributions. (See also betarand, bexprnd, cauchy, exprand, gauss, linrand, pcauchy, poisson, trirand, unirand, and weibull)
time and size are the usual GEN function arguments. level defines the amplitude. Note that GEN21 is not self-normalizing as are most other GEN functions. type defines the distribution to be used as follow:
1 = Uniform (positive numbers only)
2 = Linear (positive numbers only)
3 = Triangular (positive and negative numbers)
4 = Exponential (positive numbers only)
5 = Biexponential (positive and negative numbers)
6 = Gaussian (positive and negative numbers)
7 = Cauchy (positive and negative numbers)
8 = Positive Cauchy (positive numbers only)
9 = Beta (positive numbers only)
10 = Weibull (positive numbers only)
11 = Poisson (positive numbers only)
All of the above additions were designed by the author between May and December 1994, under the supervision of Dr. Richard Boulanger.