topic Generate Random variable in Statistical Procedures https://communities.sas.com/t5/Statistical-Procedures/Generate-Random-variable/m-p/35643#M1494 <HTML><HEAD></HEAD><BODY><P>How to generate random var in a matrix (20*30) form having mean=3 and standard dev=1.</P><P>Thanks</P><P>Parth</P></BODY></HTML> Mon, 23 Jan 2012 10:03:58 GMT HM3 2012-01-23T10:03:58Z Generate Random variable https://communities.sas.com/t5/Statistical-Procedures/Generate-Random-variable/m-p/35643#M1494 <HTML><HEAD></HEAD><BODY><P>How to generate random var in a matrix (20*30) form having mean=3 and standard dev=1.</P><P>Thanks</P><P>Parth</P></BODY></HTML> Mon, 23 Jan 2012 10:03:58 GMT https://communities.sas.com/t5/Statistical-Procedures/Generate-Random-variable/m-p/35643#M1494 HM3 2012-01-23T10:03:58Z Generate Random variable https://communities.sas.com/t5/Statistical-Procedures/Generate-Random-variable/m-p/35644#M1495 <HTML><HEAD></HEAD><BODY><P>You don't specify the distribution, but I assume you want normally distributed values from N(3,1)? Here is a PROC IML solution:</P><P></P><P>proc iml;</P><P>x = j(20, 30);&nbsp; /* allocate 20x30 matrix */</P><P>call randseed(123); /* seed random seed */</P><P>call randgen(x, "Normal", 3, 1); /* N(3,1) */</P><P></P><P>For more about generating random samples, see <A href="http://blogs.sas.com/content/iml/2010/09/22/efficient-sampling/">http://blogs.sas.com/content/iml/2010/09/22/efficient-sampling/</A></P><P>If you one day want a sample from a multivariate normal distribution, see <A href="http://blogs.sas.com/content/iml/2011/01/12/sampling-from-the-multivariate-normal-distribution/">http://blogs.sas.com/content/iml/2011/01/12/sampling-from-the-multivariate-normal-distribution/</A></P></BODY></HTML> Mon, 23 Jan 2012 12:51:28 GMT https://communities.sas.com/t5/Statistical-Procedures/Generate-Random-variable/m-p/35644#M1495 Rick_SAS 2012-01-23T12:51:28Z