Groups > comp.graphics.apps.gnuplot > #1420

Re: Histogram for irregular data

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From	sfeam <sfeam@users.sourceforge.net>
Newsgroups	comp.graphics.apps.gnuplot
Subject	Re: Histogram for irregular data
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Date	Wed, 17 Oct 2012 23:24:59 -0700
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schickb@gmail.com wrote:

> 
>> > What would the rest of that plot line look like for an
>> > unknown/variable number of columns? Or should I use the zero fill
>> > trick and count the number of column during pre-processing?
>> 
>> Sorry, but I don't understand your questions. I hope that someone
>> else
>> 
> 
> What is the plot line to create a histogram for the data below? I'm
> actually stuck on 4.2, which I believe doesn't support 'for' loops,
> but I'd find a way to upgrade if there is a simple solution in 4.6.
> 
> IL  2
> OH  3 1
> WA  1 2 1

You need to zero-fill.
For data that looks like
IL 2 0 0 0
OH 3 1 0 0
WA 1 2 1 0


The plot commands would be something like this 
(tested with version 4.6.1):

set style histogram rowstacked
set style data histogram
set style fill solid border -1
unset key
N = columns
plot "datafile" using 2:xtic(1), for [i=3:N] "" using i


If you set N larger than the actual number of columns you
will get warnings like this:
         warning: Skipping data file with no valid points
but the columns that do exist should be plotted correctly.

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Histogram for irregular data schickb@gmail.com - 2012-10-16 23:38 -0700
  Re: Histogram for irregular data Hermann Peifer <peifer@gmx.eu> - 2012-10-17 06:25 -0300
    Re: Histogram for irregular data schickb@gmail.com - 2012-10-17 09:12 -0700
      Re: Histogram for irregular data Hermann Peifer <peifer@gmx.eu> - 2012-10-17 21:45 -0300
        Re: Histogram for irregular data schickb@gmail.com - 2012-10-17 18:01 -0700
          Re: Histogram for irregular data sfeam <sfeam@users.sourceforge.net> - 2012-10-17 23:24 -0700
            Re: Histogram for irregular data schickb@gmail.com - 2012-10-19 09:05 -0700

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