#!/usr/bin/env python
# (C) 2000 Huaiyu Zhu <hzhu@users.sourceforge.net>. Licence: GPL
# $Id: test_sfuncs.py,v 1.7 2000/08/06 07:21:17 hzhu Exp $
"""
Test stand-alone functions of some distributions.
"""
from MatPy.Matrix import r_range
from MatPy.Stats.distribs import *
if __name__ == "__main__": waittime = None
else: waittime = 1
i = 0
def test(g, __name__, funcs, x, *args):
"For each f in funcs, draw a line with f(args)"
global i
ys = map(lambda f,args=args:apply(f, args), funcs)
g.plot(ys, names=["pdf", "cdf", "cdfc"], xs=[x]*len(funcs))
g.hardcopy("sfunc_%s.ps" %i)
i = i + 1
wait(waittime)
#------------------------------------------------------------------
print "All of these tests are shown in graphics"
from MatPy.gplot import Gplot, wait
g = Gplot()
x = r_range(100)/10.+1e-300
#--------------------------------------------
g.title("Gamma distribution")
a = 2; b = 0.5
test(g, __name__,
(pdfg, cdfg, cdfcg),
x, x, a, b)
x = x - 5
#--------------------------------------------
g.title("Normal distribution")
test(g, __name__,
(pdfn, cdfn, cdfcn),
x, x)
"""
binomial,
negbinomial,
poisson,
beta,
gamma,
normal,
chi2,
t,
F,
"""
Result obtained with
>>> from MatPy.tests import test_sfuncs
All of these tests are shown in graphics igam underflow error igam underflow error