Re: plot an histogram

• To: "From: Bill Hibbard <hibbard@xxxxxxxxxxxxxxxxx>" <billh@xxxxxxxxxxxxx>
• Subject: Re: plot an histogram
• From: Don Murray <dmurray@xxxxxxxxxxxxxxxx>
• Date: Fri, 27 Jul 2001 13:58:33 -0600

In addition to Bill's suggestion, check out the graph.py script in
visad.python which has a histogram function in there that is more
along the lines of what you want, I think.  This will create boxes
instead of lines connecting points like hist_test.py does.  You can
see an example at:

http://www.ssec.wisc.edu/~tomw/visadtutor/graph.html#histogram

While this is written in Jython, you could adapt it to Java if you
didn't want to use the VisAD Python interface.

Don


"From: Bill Hibbard " wrote:
> 
> Hi Ricardo,
> 
> > I need to plot an histogram... When I make a normal plot I get some
> > spikes I don't like...  The idea is to have some sort of boxes
> > representing my data instead of just lines crossing points.
> >
> > I can do this by adding more points to my flatField but before to proced
> > I would like to know If somebody have thought and solved this problem
> > before, or if visad includes this kind of plot.
> 
> Check out visad/python/hist_test.py for a very simple VisAD
> Python program for plotting a histogram (in this case, a 2-D
> histogram). This Python program uses the makeHistogram()
> method of visad/math/Histogram.java. It makes histograms
> pretty easy.
> 
> Cheers,
> Bill

-- 
*************************************************************
Don Murray                               UCAR Unidata Program
dmurray@xxxxxxxxxxxxxxxx                        P.O. Box 3000
(303) 497-8628                              Boulder, CO 80307
http://www.unidata.ucar.edu/staff/donm
*************************************************************

• References:
  • Re: plot an histogram
    • From: From: Bill Hibbard <hibbard@xxxxxxxxxxxxxxxxx>