gnuplot-beta

Binned histograms

[Nibbler <rea...@ho...>]

Hello.

I have data where I have [b]Value of sample[/b] and [b]Number of
occurrences[b]
And then I have made histogram graph: 
http://www.dspguide.com/ch2/4.htm LOOK FIGURE 2-4 (c) 

Now I would like to use binning and make graph of binned histogram like
this: 
http://www.dspguide.com/ch2/4.htm LOOK FIGURE 2-7 

but has in gnuplot some function which will do it ?
or how I supposed to do it ?


 

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Re: Binned histograms

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

Nibbler wrote:

> but has in gnuplot some function which will do it ?

gnuplot has 'smooth freq', which can be tuned to this:

	bin = 5  # e.g.
	plot 'data' using (bin*int($1/bin)):(1) smooth freq with boxes

Re: Binned histograms

[Nibbler <rea...@ho...>]

Thanks a lot for your help !

By the way.=20

I need to set some information text in graph (like AVG etc..). I know that =
I
could use label, but
how I should set the coordinates, because I dont know which kind of data
(range) I get in the database.


=20



Hans-Bernhard Br=C3=B6ker wrote:
>=20
> Nibbler wrote:
>=20
>> but has in gnuplot some function which will do it ?
>=20
> gnuplot has 'smooth freq', which can be tuned to this:
>=20
> =09bin =3D 5  # e.g.
> =09plot 'data' using (bin*int($1/bin)):(1) smooth freq with boxes
>=20
>=20
>=20
>=20
> -------------------------------------------------------------------------
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job
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> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronim=
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=3D121642
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>=20
>=20

--=20
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Re: Binned histograms

[Joe K. <jko...@co...>]

on 10/19/06 4:09 AM, Nibbler at rea...@ho... wrote:

> 
> Hello.
> 
> I have data where I have [b]Value of sample[/b] and [b]Number of
> occurrences[b]
> And then I have made histogram graph:
> http://www.dspguide.com/ch2/4.htm LOOK FIGURE 2-4 (c)
> 
> Now I would like to use binning and make graph of binned histogram like
> this: 
> http://www.dspguide.com/ch2/4.htm LOOK FIGURE 2-7
> 
> but has in gnuplot some function which will do it ?
> or how I supposed to do it ?
> 
> 
>  

I didn't look at your URLs, but does the bar function do what you want? Do

  help bar

at the octave prompt to see more about bar.

When in doubt, take a look through the Octave Combined Index for possible
routines to use. It is at

  http://octave.sourceforge.net/index/index.html

Joe

Re: Binned histograms

[Joe K. <jko...@co...>]

on 10/19/06 3:46 PM, Joe Koski at jko...@co... wrote:

> on 10/19/06 4:09 AM, Nibbler at rea...@ho... wrote:
> 
>> 
>> Hello.
>> 
>> I have data where I have [b]Value of sample[/b] and [b]Number of
>> occurrences[b]
>> And then I have made histogram graph:
>> http://www.dspguide.com/ch2/4.htm LOOK FIGURE 2-4 (c)
>> 
>> Now I would like to use binning and make graph of binned histogram like
>> this: 
>> http://www.dspguide.com/ch2/4.htm LOOK FIGURE 2-7
>> 
>> but has in gnuplot some function which will do it ?
>> or how I supposed to do it ?
>> 
>> 
>>  
> 
> I didn't look at your URLs, but does the bar function do what you want? Do
> 
>   help bar
> 
> at the octave prompt to see more about bar.
> 
> When in doubt, take a look through the Octave Combined Index for possible
> routines to use. It is at
> 
>   http://octave.sourceforge.net/index/index.html
> 
> Joe
> 
Disregard, I thought I was on the octave list. It is another way to use
gnuplot.

Joe

Re: Binned histograms

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

Nibbler wrote:
> I need to set some information text in graph (like AVG etc..). I know that I
> could use label, but
> how I should set the coordinates, because I dont know which kind of data
> (range) I get in the database.

Wait a bit for version 4.2 (or get the release candidate now), and try 
its new features.  One of them is plotting to string-labelled axes.