Matvec Users’ Guide

52 CHAPTER 9. MACRO PACKAGES
9.1.1 demo() function
Here is the macro script of demo() function:
function demo(program_name)
{
#
# run a demo program in $(MATVECHOME)/examples/interface/txt
#
# Tianlin Wang at UIUC, Sat Jan 28 16:13:05 CST 1995
#
}
local(retval,filename);
if (program_name.class() == "String") {
filename = getenv("MATVECHOME") + "/examples/interface/txt/";
filename += program_name;
retval = input(filename);
}
else {
error("demo(program_name): program_name must be a string");
retval = 0;
}
return retval;
There are a number of demo examples coming with the Matvec standard distribution. Usually, these
examples are residing in MATVECHOME/examples/interface/txt directory, where MATVECHOME can be
obtained using Matvec function getenv(”MATVECHOME”). These demo examples are listed and briefly
described below:
hello: greetings to every body.
gianola: matrix version of BLUP.
try: variance component estimation based on a five-animal pedigree
VG: single trait variance component estimation.
susan: single trait BLUP.
For examples
> package("demo");
> demo("try")
.matvec.799959823.0
.matvec.799959823.1
iteration sigma_1 ..... sigma_e log_likelihood
0: 1 2 -6.10457
1: 1.74667 2.87176 -6.48199
2: 1.65664 2.91128 -4.73543
3: 2.23916 2.68895 -5.76399
4: 2.22348 2.6937 -5.76309
5: 2.21558 2.69613 -5.76264
6: 2.21156 2.69737 -5.76241
7: 2.20951 2.69801 -5.76229
8: 2.20846 2.69833 -5.76223
9: 2.20792 2.6985 -5.7622