gnuplot-info — For questions and discussion about gnuplot

[Gnuplot-info] TkCanvas; using tags for interactivity

[Mstislav E. <m_e...@us...>]

Hi All,

I am using the TkCanvas device to plot a number of series with lines
and of course would like to distinguish between different
series. However, the number of lines is large enough (about 30) to
make varying line styles impractical for identification. I would like
to be able to identify the series interactively using the mouse,
e.g. clicking a series should print its title.  The TkCanvas provides
support for some interactivity in form of the user_gnuplot_coordinates
procedure. However, its use is too complicated for my purpose. My idea
is to assign a tag to each series and use it for identification. Now
is there a way to pass the tag to gnuplot and have it attached to the
series? Maybe it is possible to repurpose the 'title' argument?


Thanks for any tips! Best

Mstislav

[Gnuplot-info] question about boxplot

[ablimit <abl...@gm...>]

Hi,

I have an array of data which looks like this [0.5, 0.3, 0.15,0.0, 0.0,
-0.09, -0.25,-0.4].

I wanted put the corresponding name (or number) of the boxes on top of the
each box to indicate which one is which.

Anybody knows how to do this ??


Thanks.
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Re: [Gnuplot-info] Need help to Install Cygwin version of Gnuplot

[Tatsuro M. <tma...@ya...>]

Hello

Please read carefully documents in the package first.

In addition, please describe the trouble that you have met in installing process.
Without the detailed information, I cannot tell you no useful information.

BTW, if you would like to use gnuplot-4.4.0, I recommend you to install the gnuplot from cygwin
official package using the cygwin setup (Category: Math).  If you installed it, the dependency runtime
libraries will be automatically installed.
(In the case, you would like to install, the gnuplot 4.5 on my web site, it is better to install the
cygwin official gnuplot 4.4.0.  It is because all other dependent runtime libraries are installed
except the libedit.

Regards

Tatsuro
--- prasanna Kumar  wrote:

> 
> Sir,
> 
> I would like to know the procedures for installing Cygwin version of Gnuplot in windows XP.
> Please advise inthis regard...
> 
> Thanks
> Prasanna
> 
> 
> 
> 


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Re: [Gnuplot-info] color-mapped lines on 2D plots

[Thomas S. <t.s...@fz...>]

you may use the 'palette z' option.

assuming your data are in the format
x y height
the plot command would looklike this:

plot "datafilename" using 1:2:3 with lines linecolor palette z


gregsa wrote:
> 
> Hello,
> 
> I am using plot command to draw a simple area maps like this:
>  http://old.nabble.com/file/p29415470/waw-zch-map.png 
> 
> (This is actually a track of a flight from Warsaw to Zurich)
> 
> What I need, is to plot lines that would add a 3rd dimention to the plot.
> I.e. to color the orange line according to the height of a plane. Just
> like on the http://flightradar24.com
> 
> The only way I could come up with is to cut the line into sections
> according to some height ranges and plot sections separately. 
> 
> However, it would be perfect to be able to have something like pm3d but
> for lines.
> 
> Any advice? Thanks in advance.
> 
> Greg.
> 

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[Gnuplot-info] color-mapped lines on 2D plots

[gregsa <pub...@sa...>]

Hello,

I am using plot command to draw a simple area maps like this:
http://old.nabble.com/file/p29415470/waw-zch-map.png 

(This is actually a track of a flight from Warsaw to Zurich)

What I need, is to plot lines that would add a 3rd dimention to the plot.
I.e. to color the orange line according to the height of a plane. Just like
on the http://flightradar24.com

The only way I could come up with is to cut the line into sections according
to some height ranges and plot sections separately. 

However, it would be perfect to be able to have something like pm3d but for
lines.

Any advice? Thanks in advance.

Greg.
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Re: [Gnuplot-info] How to use files with Unicode in their path?

[Tatsuro M. <tma...@ya...>]

Hello

This topic had been discussed in the below

http://groups.google.co.jp/group/comp.graphics.apps.gnuplot/browse_thread/thread/9b33b9c9488b62fe?hl

--- Julien Erny wrote:

> 
> Hello everyone,
> 
> In searching the forum I found numerous references to UTF-8 encoding of
> textual elements in a plot like labels and such, but I cannot find any
> reference to how I should open a file with a Unicode path.
> I'm using gnuplot through a pipe and if I'm sending something like "load
> 'file竄ャaテケテゥ.gnuplot'" encoded in UTF-8, the GUI doesn't understand the name at
> all, obviously trying to interpret each character individually. Obviously, I
> have the same problem if I want to set the output to a file with a unicode
> path. Actually, if I'm typing directly into the GUI accented characters like
> 'テゥ' or exotic ones like '竄ャ', they are not interpreted correctly. Is there a
> setting I've missed to enable Unicode characters in the console? 
> 
> I'm using the gnuplot 4.5 binaries for Windows (and I'm on Windows Vista).
> 
> Thanks a million
> 
> Julien Erny
> ---------------------------
> R&D Engineer, PhD
> e(ye)BRAIN
> 
> 
> 
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> View this message in context:
> http://old.nabble.com/How-to-use-files-with-Unicode-in-their-path--tp29356433p29356433.html
> Sent from the Gnuplot - User mailing list archive at Nabble.com.
> 
> 
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> 
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Re: [Gnuplot-info] GNUPlot under Java

[Hans-Bernhard B. <HBB...@t-...>]

On 10.08.2010 20:18, puttu wrote:

> Recently started using JavaPlot 0.4.0.jar for one of my application, I am
> continously getting followin error Please help me to resolve.

You're asking the wrong people.  This has nothing to do with gnuplot 
itself.  You have to take this to the people using "panayotis.com" as 
the domain name part of their Jave code.

[Gnuplot-info] pm3d and two palettes

[Pedro J. C. <car...@qt...>]

Dear Gnuplot users

>From time to time I have to take gnuplot over the limits (;)! I am making a
splot with two surfaces using pm3d. One of the surfaces runs over the second
(basically is a wave packet propagation over a interaction potential
surface). What I'm trying to do is to use two different sets of colours to
define both surfaces since one is quantitative while the second is only
qualitative. Using only one palette we cannot see much detail. I tried to
use the 4th column but I'm always constrained by the range of the
quantitative one.

Any suggestion for this plots?

Thanks for the help
Pedro

Re: [Gnuplot-info] how to plot series divided by element of series

[Thomas S. <t.s...@fz...>]

you need to store the t(1) value in a variable:

plot 'timings' using 1:($0==0?v=$2:0 , v/$2) with linespoints


michael bane wrote:
> 
> Afternoon fellow GNUs!
> 
> Maybe I've missed something, being a new convert to gnuplot, but I  
> wish to read in some data (NumOfCores,Seconds) and plot 2 graphs. The  
> first graph is Seconds (y-axis) against NumOfCores and I've managed.  
> However, the second graph is to plot the speed-up, defined on p cores  
> as t(1)/t(p) where t(p) is the time taken on p cores. I can't find the  
> correct syntax, eg I failed with
>    plot 'timings' using 1:($2[1]/$2) with linespoints
> 
> Could somebody explain what I should be doing?
> 
> Many thanks,
> Michael
> www.rcs.manchester.ac.uk
> www.twitter.com/mkbane_mcr
> 
> 
> 
> ------------------------------------------------------------------------------
> This SF.net email is sponsored by 
> 
> Make an app they can't live without
> Enter the BlackBerry Developer Challenge
> http://p.sf.net/sfu/RIM-dev2dev 
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> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> 
> 

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[Gnuplot-info] how to plot series divided by element of series

[michael <mic...@ma...>]

Afternoon fellow GNUs!

Maybe I've missed something, being a new convert to gnuplot, but I  
wish to read in some data (NumOfCores,Seconds) and plot 2 graphs. The  
first graph is Seconds (y-axis) against NumOfCores and I've managed.  
However, the second graph is to plot the speed-up, defined on p cores  
as t(1)/t(p) where t(p) is the time taken on p cores. I can't find the  
correct syntax, eg I failed with
   plot 'timings' using 1:($2[1]/$2) with linespoints

Could somebody explain what I should be doing?

Many thanks,
Michael
www.rcs.manchester.ac.uk
www.twitter.com/mkbane_mcr

[Gnuplot-info] Using images for points

[Jonathan S. <jon...@gs...>]

Hi

I would like to use images as points. This could be either by plotting 
series or just by placing the image directly on the graph. I would also 
like the image to be scaled so that its a certain size, regardless of 
the scale used for the other plots. Is this even possible or do need to 
use a lower level library like gd?

Also, can I use images for the labels in the legend?

Thanks. I've been scouring the documentation and examples to try and 
figure this out.

Jonathan Steel

Re: [Gnuplot-info] GNUPlot under Java

[puttu <pra...@ya...>]

Hello

Recently started using JavaPlot 0.4.0.jar for one of my application, I am
continously getting followin error Please help me to resolve.

"com.panayotis.gnuplot.GNUPlotException: Error while parsing 'plot'
arguments.
	com.panayotis.gnuplot.GNUPlotExec.plot(GNUPlotExec.java:198)
	com.panayotis.gnuplot.GNUPlot.plot(GNUPlot.java:267)
	DATA.GraphConvert.defaultTerminal(GraphConvert.java:169)
	DATA.GraphConvert.makegraph(GraphConvert.java:116)
	DATA.GraphConvert.doPost(GraphConvert.java:104)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)"
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[Gnuplot-info] how to plot series divided by element of series

[michael b. <mic...@ma...>]

Afternoon fellow GNUs!

Maybe I've missed something, being a new convert to gnuplot, but I  
wish to read in some data (NumOfCores,Seconds) and plot 2 graphs. The  
first graph is Seconds (y-axis) against NumOfCores and I've managed.  
However, the second graph is to plot the speed-up, defined on p cores  
as t(1)/t(p) where t(p) is the time taken on p cores. I can't find the  
correct syntax, eg I failed with
   plot 'timings' using 1:($2[1]/$2) with linespoints

Could somebody explain what I should be doing?

Many thanks,
Michael
www.rcs.manchester.ac.uk
www.twitter.com/mkbane_mcr

[Gnuplot-info] Umlauts with PDF terminal

[Andreas L. <nd...@of...>]

Hey,

I wonder on how to get german umlauts properly displayed with the PDF
terminal? I use 

set encoding utf8
set term pdf color enhanced font "Helvetica" fsize 10

where the umlauts are broken both in title and in external data labels.
I thought it might be the font, but I can't get another font selected on
Mac OS X with:

set fontpath "/Library/Fonts/"

but my font is never found. I assume I have to use the PostScript-Name
of the font...

Thanks for any help
Andy

gnuplot version 4.4
built via macports
-- 
,,Der Schuldenberg des Landes Hessen wachst nach Berechnungen des
Steuerzahlerbundes in diesem Jahr noch schneller als bisher. Seit dem 1.
Januar 2006 nehme die Schuldenlast um 53 Euro je Sekunde zu, teilte der
Bund am Freitag mit.´´ (FAZ.net, 06.01.2006)

Re: [Gnuplot-info] Plotting ratio of i- and j-th columns, i and j changing

[Hans-Bernhard B. <HBB...@t-...>]

On 07.08.2010 22:24, LukasP wrote:

> I have a datafile. I need to plot ratio of two columns, but selection of the
> columns depends on variable KEY, which is passed to the plotting script.

You'll probably need the long form of a column data reference, 
column(<n>), instead of the short $<n>, for that.

> plot "IFs/ILs/Res/L31-" . WHAT . EXT . ".xF3" u 1:($3/$2) w lp t "CEN-L31"
>
> but with "$3" and "$2" are varying (or are depending on the KEY variable).

Varying / depending: how?

> Is there a way how to get the ratio of the columns, depending on a variable
> (KEY)? Maybe using macros, eval?

You're trying too hard.  You need something like

	using 1:(column(KEY+1)/column(KEY))

> And another question -
> - Is it possible to "continue" plotting?

Not really.  But you're probably looking for "help replot".

> This would help me plotting two columns of a datafile, that plotting ratios
> of two its columns.

No, it won't.

Re: [Gnuplot-info] diferential equation plotting

[Hans-Bernhard B. <HBB...@t-...>]

On 07.08.2010 20:42, G. Erbil Can Artun wrote:

> How can I specify a function includes differential equation (degree
> of  1 and 2 or more) on the gnuplot line.

That question appears garbled.  Probably some important parts got lost 
in translation.

We need a better explanation of what you're trying to do than the above. 
  An example might help.

> How can I plot a differential function?

I don't think there is such a thing as a "differential function".

[Gnuplot-info] Plotting ratio of i- and j-th columns, i and j changing

[LukasP <LP...@po...>]

Hello,

I have a datafile. I need to plot ratio of two columns, but selection of the
columns depends on variable KEY, which is passed to the plotting script.

Unfortunately, I'm not able to find any way how to create the plotting
command.

I need to get e.g.:

plot "IFs/ILs/Res/L31-" . WHAT . EXT . ".xF3" u 1:($3/$2) w lp t "CEN-L31"

but with "$3" and "$2" are varying (or are depending on the KEY variable).

I tried something like:

KEY=2
plot "IFs/ILs/Res/L31-" . WHAT . EXT . ".xF3" u 1:(sprintf("($%d/$%d)", KEY
+ 1, KEY)) w lp t "CEN-L31"

but I got "Warning: empty y range [7.3327e+268:7.3327e+268], adjusting to
[7.25937e+268:7.40602e+268]" and nonsensical plot.

If I tried:

KEY=2
plot "IFs/ILs/Res/L31-" . WHAT . EXT . ".xF3" u sprintf("1:($%d/$%d)", KEY +
1, KEY) w lp t "CEN-L31"

I got a plot, but values were not ratios of the two specified columns.

I tried:

RAT(i)=sprintf("1:($%d/$%d)", i + 1, i)

plot "IFs/ILs/Res/L31-" . WHAT . EXT . ".xF3" u eval(KEY) w lp t "CEN-L31"

but I got "_CompIFs.gp", line 84: undefined function: eval"

Is there a way how to get the ratio of the columns, depending on a variable
(KEY)? Maybe using macros, eval?

And another question -
- Is it possible to "continue" plotting?

I mean something like:

plot sin(x)
plot cos(x) # But don't clear the preceding plot!

when I want to get:

plot sin(x), cos(x)

This would help me plotting two columns of a datafile, that plotting ratios
of two its columns.

Thank you in advance.

LuP

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[Gnuplot-info] diferential equation plotting

[G. E. C. A. <ecg...@ho...>]

Hello,

 

How can I specify a function includes differential equation (degree of 1 and 2 or more) on the gnuplot line.

How can I plot a differential function?

 

Thank you...
 		 	   		  

[Gnuplot-info] how to fix it?

[Pengpeng <myo...@ya...>]

please see the attachment,
gnuplot> plot "/home/pt/test/table" using 1:2
/home/pt/test/table is att1
when i run command ,gnuplot> plot "/home/pt/test/table" using 1:2
what i get is att2,it is not what i want 
would you mind to tell me how to fix it?



      

Re: [Gnuplot-info] Two input files, how to plot ratio of values?

[Thomas S. <t.s...@fz...>]

on unix-like systems and windows with cygwin library:

plot "< join A.txt B.txt" using 1:($3/$2)


LukasP wrote:
> 
> Hello,
> 
> let's have two datafiles, both have the same number of lines (and the same
> first column):
> 
> A.txt:
> 1 10
> 2 20
> 
> B.txt:
> 1 11
> 2 30
> 
> And I'd need to draw a plot of ratio of y-values, so that x = {1, 2} (same
> in both datafiles) and y = {11/10=1.1, 30/20=1.5}.
> 
> Is there a way how to provide this?
> 
> Cheers,
> 
> LuP
> 
> 

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[Gnuplot-info] How to use files with Unicode in their path?

[Julien E. <jul...@gm...>]

Hello everyone,

In searching the forum I found numerous references to UTF-8 encoding of
textual elements in a plot like labels and such, but I cannot find any
reference to how I should open a file with a Unicode path.
I'm using gnuplot through a pipe and if I'm sending something like "load
'file€aùé.gnuplot'" encoded in UTF-8, the GUI doesn't understand the name at
all, obviously trying to interpret each character individually. Obviously, I
have the same problem if I want to set the output to a file with a unicode
path. Actually, if I'm typing directly into the GUI accented characters like
'é' or exotic ones like '€', they are not interpreted correctly. Is there a
setting I've missed to enable Unicode characters in the console? 

I'm using the gnuplot 4.5 binaries for Windows (and I'm on Windows Vista).

Thanks a million

Julien Erny
---------------------------
R&D Engineer, PhD
e(ye)BRAIN



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Re: [Gnuplot-info] pm3d data export

[e-letter <in...@gm...>]

On 06/08/2010, e-letter <in...@gm...> wrote:
> On 06/08/2010, Junghun Shin <jh...@ef...> wrote:
>> You're using version 4.2. Latest release ver 4.4.0 gave me an output
>> file that read:
>
> So this is a bug both in the software version 42 and the documentation
> which states that this function works in 42?
>
I upgraded from 42p0 to 4232 which caused the error:

]$ gnuplot
gnuplot: symbol lookup error: /lib/libreadline.so.5: undefined symbol: PC

This is probably due to a build error by the distributor (mandriva). I
installed an older version 42p4 and the table function now works.

Re: [Gnuplot-info] pm3d data export

[e-letter <in...@gm...>]

On 06/08/2010, Junghun Shin <jh...@ef...> wrote:
> You're using version 4.2. Latest release ver 4.4.0 gave me an output
> file that read:

So this is a bug both in the software version 42 and the documentation
which states that this function works in 42?

Re: [Gnuplot-info] pm3d data export

[Junghun S. <jh...@ef...>]

You're using version 4.2. Latest release ver 4.4.0 gave me an output
file that read:

# Surface 0 of 1 surfaces

# Curve title: ""test.dat""
# IsoCurve 0, 50 points
# x y z type
 1.9  691.71  515.025 i
 1.9  692.118  515.165 i
 1.9  692.526  515.565 i
... (the rest left out, since there're 2654 lines.)


On Fri, Aug 6, 2010 at 5:35 PM, e-letter <in...@gm...> wrote:
>
> On 05/08/2010, gnu...@li...
> <gnu...@li...> wrote:
>
> > Message: 3
> > Date: Tue, 3 Aug 2010 07:56:31 -0700 (PDT)
> > From: Thomas Sefzick <t.s...@fz...>
> > Subject: Re: [Gnuplot-info] pm3d data export
> > To: gnu...@li...
> > Message-ID: <293...@ta...>
> > Content-Type: text/plain; charset=us-ascii
> >
> >
> > have a look at the 'set table' command.
> >
> > set table 'filename'
> > splot ....
> > unset table
> >
> I have tried to export a 3d plot using the following commands with the data set:
>
> 1.9 704.11 738.5
> 1.84 711.6 673.905
> 1.86 711.7 609.36
> 1.7 701.42 544.6
> 1.642 691.71 514.97
> 1.5 698.34 485.2
> 1.7 705 463.57
> 1.3 706.4 441.8301
> 1.5 710.48 420.19
>
> The original command as described in the manual caused an error:
>
> set table {"testoutput"}
>             ^
> invalid complex constant
>
> So I removed the curly bracket:
>
> set table "testoutput"
> set dgrid3d 50,50,2
> splot '/path/to/test.dat'
> unset table
>
> The file 'testoutput' contains only the following content:
>
> #Surface 0 of 1 surfaces
>
> What is my error please?
>
> gn...@co...
>
> ------------------------------------------------------------------------------
> This SF.net email is sponsored by
>
> Make an app they can't live without
> Enter the BlackBerry Developer Challenge
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Re: [Gnuplot-info] pm3d data export

[e-letter <in...@gm...>]

On 05/08/2010, gnu...@li...
<gnu...@li...> wrote:

> Message: 3
> Date: Tue, 3 Aug 2010 07:56:31 -0700 (PDT)
> From: Thomas Sefzick <t.s...@fz...>
> Subject: Re: [Gnuplot-info] pm3d data export
> To: gnu...@li...
> Message-ID: <293...@ta...>
> Content-Type: text/plain; charset=us-ascii
>
>
> have a look at the 'set table' command.
>
> set table 'filename'
> splot ....
> unset table
>
I have tried to export a 3d plot using the following commands with the data set:

1.9 704.11 738.5
1.84 711.6 673.905
1.86 711.7 609.36
1.7 701.42 544.6
1.642 691.71 514.97
1.5 698.34 485.2
1.7 705 463.57
1.3 706.4 441.8301
1.5 710.48 420.19

The original command as described in the manual caused an error:

set table {"testoutput"}
             ^
invalid complex constant

So I removed the curly bracket:

set table "testoutput"
set dgrid3d 50,50,2
splot '/path/to/test.dat'
unset table

The file 'testoutput' contains only the following content:

#Surface 0 of 1 surfaces

What is my error please?

gn...@co...