gnuplot-info

[Gnuplot-info] histogram

[solled <so...@ms...>]

Hi,
I am new to gnuplot. I need to make a histogram of some data I have. How do
I do this? If there is some online source that describes this, please direct
me to it. THANKS! 
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[Gnuplot-info] histogram

[Ronnie R. P. <r.r...@tu...>]

I am using gnuplot 4.0
I want to  make a clustered histogram
and have followed tutorial on the web..
but is histogram actually supported?
Do I need extra libraries etc? 

Ronnie


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web: http://www.mechanics.citg.tudelft.nl/~pedersen/

Re: [Gnuplot-info] histogram

[<HBB...@t-...>]

Ronnie Refstrup Pedersen wrote:
> I am using gnuplot 4.0
> I want to  make a clustered histogram
> and have followed tutorial on the web..
> but is histogram actually supported?

Yes.  But not in the version of gnuplot you have. 4.0 is several years 
out of date.  You really should update.

Re: [Gnuplot-info] histogram

[<br...@ph...>]

solled wrote:
> Hi,
> I am new to gnuplot. I need to make a histogram of some data I have. How do
> I do this?

Depends on what you mean by "make a histogram".   There are two rather 
distinct things people refer two by this phrase:  binning & counting 
data into a histogram dataset, and displaying such a dataset as a plot.
gnuplot, by its nature, is really only meant to do the second part. 
Following the old Unix dogma of "one tool <--> one task", binning and 
counting is not gnuplot's job.  But it does offer rudimentary support 
for it, as of version 4.0:

	bin(x,width) = width * floor(x / width)
	plot 'data' using (bin($1,5):(1.0) smooth frequency with histeps