Tests of statistical utilities

The file test_sutils.py tests statistical utilities: hist, histplot. Results are at 3.18

#!/usr/bin/env python
# (C) 2000 Huaiyu Zhu <hzhu@users.sourceforge.net>.  Licence: GPL
# $Id: test_sutils.py,v 1.4 2000/10/05 01:32:27 hzhu Exp $
"""
Testing statistics utilities: hist, histplot
"""

from MatPy.Stats.distribs import randn
from MatPy.Stats.utils import hist, histplot
from MatPy.gplot import wait

if __name__ == "__main__":	waittime = None
else:	waittime = 1

data = randn((300,1))

print "calculating data for histogram"
(nn, xx) = hist(data)
print nn.T
print xx.T

print "Default histogram"
g = histplot(data, waittime=waittime)
g.title("Default Histogram")
# Using replot here seems wrong - it tries to find original.  Why?
# g.replot()
# But the hardcopy already contains title, even without replot.
g.hardcopy("hist_0.ps")
wait(waittime)

print "Scaled histogram"
histplot(data, waittime=waittime, g=g, scaled=1)

print "Histogram with spefied bins"
g.title("Histogram with Spefied Bins")
g = histplot(data, randn(20).T, waittime=waittime, g=g)
g.hardcopy("hist_1.ps")

Result obtained with
>>> from MatPy.tests import test_sutils

calculating data for histogram
[ 2      6      23     39     58     61     66     31     12     1     ]
[-2.7   -2.13  -1.56  -0.99  -0.42   0.15   0.72   1.29   1.86   2.43  ]
Default histogram
None
Scaled histogram
<MatPy.gplot.Gplot instance at 0x8186dfc>
Histogram with spefied bins
<MatPy.gplot.Gplot instance at 0x8186dfc>