GSLIB Help Page: DRAW

Description:

The draw program, documented below, reads as input a
Kvariate probability density function, computes the corresponding
Kvariate cdf and draws a user specified number L samples
from that distribution. The input probability density function could be
the equal weighted data distribution, the declustered distribution,
a smoothed version of the data distribution (e.g., the output of
histsmth or scatsmth) or any userspecified
distribution.

Parameters:

datafl: a data file in simplified GeoEAS format containing the
Kvariate distribution.

nvar: the number of variables (K making up the
distribution being drawn from.

icolvr(1,..,nvar): the column numbers for the nvar
variables of interest

icolwt: the column number for the probability values (if
icolwt0 then the samples will be equal weighted).

tmin and tmax: all values strictly less than tmin
and strictly greater than tmax are ignored.

seed and num: the random number seed (a large odd integer)
and the number L=num of simulated values to draw.

outfl: the output file containing the simulated values