Sample program to generate random stimulus functions.

-nt n            n = length of time series
-num_stimts p    p = number of input stimuli (experimental conditions)
[-nblock i k]    k = block length for stimulus i  (1<=i<=p)
                     (default: k = 1)
[-seed s]        s = random number seed
[-quiet]         flag to suppress screen output
[-one_file]      place stimulus functions into a single .1D file
[-one_col]       write stimulus functions as a single column of decimal
                   integers (default: multiple columns of binary nos.)
[-prefix pname]  pname = prefix for p output .1D stimulus functions
                   e.g., pname1.1D, pname2.1D, ..., pnamep.1D

The following Random Permutation, Markov Chain, and Input Table options
are mutually exclusive.

Random Permutation options:
-nreps i r       r = number of repetitions for stimulus i  (1<=i<=p)
[-pseed s]       s = stim label permutation random number seed
                 Note: Require n >= Sum (r[i] * k[i])

Markov Chain options:
-markov mfile    mfile = file containing the transition prob. matrix
[-pzero z]       probability of a zero (i.e., null) state
                     (default: z = 0)

Input Table row permutation options:
[-table dfile]   dfile = filename of column or table of numbers
                 Note: dfile may have a column selector attached
                 Note: With this option, all other input options,
                       except -seed and -prefix, are ignored

Warning: This program will overwrite pre-existing .1D files