Statistical characteristics of a histogram
Code: "histo_stat.py"
Programming language: Python
DMelt Version 1.4. Last modified: 12/19/1970. License: Free
http://jwork.org/dmelt/code/cache/histo_stat_6535.py
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from jhplot import *

p0=P0D()
# 100 numbers (Normal distribution) 
p0.randomNormal(1000,0.0,2.0) # mean=0, sigma=2 
h1=H1D("Normal",40,-10,10)
h1.fill(p0) # fill a histogram with 1D array 

c1=HPlot()
c1.visible(); c1.setAutoRange()
c1.draw(h1)
c1.drawStatBox(h1) # show statistics 
stat= h1.getStat()
print stat["mean"],"+-",stat["mean_error"]