/* Stochastic Binomial Sampler */
new; cls;
p=0.6;
nr=10;
print/rz pbisampler(p,nr);



/*
**  pbisampler.txt - Stochastic Binomial 0-1 Sampler.
** (C) Copyright 2005 Yosuke Amijima. All Rights Reserved.
**
**  Purpose:    Gets stochastic binomial 0-1 index numbers in a very easy way.
**
**  Format:     x=pbisampler(p,nr);
**
**  Input:      p        scalar,    probability(for 1)
**
**              nr       scalar,    number of rows
**
**
**  Output:     x        vector,    nr x 1 of resulting 0-1 index vector
**
*/
proc pbisampler(p,nr);
   local x;
   x=rndu(nr,1);
   x=(x.<=p);
   retp(x);
endp;