gnuplot-info — For questions and discussion about gnuplot

Re: [Gnuplot-info] current CVS

[Dieter J. <die...@t-...>]

Sorry,
this ought to say:
-DUSE_X11_MULTIBYTE
and I seriously do not understand why this happens.
Take care


Dieter Jurzitza

-- 
-----------------------------------------------------------

                               |
                                \
                 /\_/\           |
                | ~x~ |/-----\   /
                 \   /-       \_/
  ^^__   _        /  _  ____   /
 <°°__ \- \_/     |  |/    |  |
  ||  ||         _| _|    _| _|

if you really want to see the pictures above - use some font
with constant spacing like courier! :-)
-----------------------------------------------------------Am Montag, 22. 
September 2008 21:57:22 schrieb Dieter Jurzitza:
> Dear listmembers,
***
> specifying -DX11_USES_MULTIBYTE on the commandline.
***

[Gnuplot-info] current CVS

[Dieter J. <die...@t-...>]

Dear listmembers,
this is just to inform you that CVS as of today cannot be built without 
specifying -DX11_USES_MULTIBYTE on the commandline.

If you don't, you get the error:

gplt_x11.c: In function ‘pr_font’:
gplt_x11.c:5552: error: ‘CODESET’ undeclared (first use in this function)


The reason is caused by these lines in gplt_x11.c:
#ifdef USE_X11_MULTIBYTE
# include <locale.h>
# include <langinfo.h>
# include <X11/Xlocale.h>
#endif

whoever can fix ...

Thank you for working on gnuplot!
Take care




Dieter Jurzitza


-- 
-----------------------------------------------------------

                               |
                                \
                 /\_/\           |
                | ~x~ |/-----\   /
                 \   /-       \_/
  ^^__   _        /  _  ____   /
 <°°__ \- \_/     |  |/    |  |
  ||  ||         _| _|    _| _|

if you really want to see the pictures above - use some font
with constant spacing like courier! :-)
-----------------------------------------------------------

Re: [Gnuplot-info] How to display lines x = 0 and y = 0 when plotting a function?

[dxs <sh...@gm...>]

Thanks a lot, Thomas! Problem solved.



Thomas Sefzick wrote:
> 
> set zeroaxis
> 
>> Dear all,
>> After having spend a few hour trying to find info about this, I've
>> resorted to asking the community.:
>> Suppose I want to plot the function x**2 in a certain viewing rectangle.
>> I type:
>> plot [-3:3] [-10:10] x**2 - 3 
>> What should I add to also DISPLAY lines x = 0 and y = 0 with my graph of
>> x**2 - 3, so that I can see the intercepts?
>> Thanks a million,
>> Dmitry.
> 
> 

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Re: [Gnuplot-info] How to display lines x = 0 and y = 0 when plotting a function?

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

set zeroaxis

> Dear all,
> After having spend a few hour trying to find info about this, I've
> resorted to asking the community.:
> Suppose I want to plot the function x**2 in a certain viewing rectangle. I
> type:
> plot [-3:3] [-10:10] x**2 - 3 
> What should I add to also DISPLAY lines x = 0 and y = 0 with my graph of
> x**2 - 3, so that I can see the intercepts?
> Thanks a million,
> Dmitry.

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[Gnuplot-info] How to display lines x = 0 and y = 0 when plotting a function?

[dxs <sh...@gm...>]

Dear all,

After having spend a few hour trying to find info about this, I've resorted
to asking the community.:

Suppose I want to plot the function x**2 in a certain viewing rectangle. I
type:

plot [-3:3] [-10:10] x**2 - 3 

What should I add to also DISPLAY lines x = 0 and y = 0 with my graph of
x**2 - 3, so that I can see the intercepts?

Thanks a million,
Dmitry.
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[Gnuplot-info] [OT] "Gnuplot in Action" Book - Free Content available

[Philipp K. J. <ja...@ie...>]

If you are interested in Gnuplot, you might be interested 
in my upcoming book:
        "Gnuplot in Action"
(To be published, Jan 2009, Manning Publications.)

The manuscript is now complete, and an excerpt from
the first chapter, introducing Gnuplot and its use for
Graphical Analysis, is available for free as "Green Paper"
from the publisher's site:
        www.manning.com/janert

This is also the LAST opportunity to make comments
or give suggestions and feedback on the manuscript
before it goes into print. You can email me (the author)
directly, or post comments on the publishers "Forum"
page.

The book is available for pre-order from the publisher's
site, and of course at Amazon (as well as other sellers):
	www.amazon.com/dp/1933988398

Feel free to forward this information as appropriate.

Best,

                Ph.

[Gnuplot-info] iteration

[<mw...@gm...>]

Hi,

is it possible to have an iteration?

set multiplot layout 2,2

M=20
set title 'M = ' . M
plot 'M'.M.'.eigenvalues'

M=30
set title 'M = ' . M
plot 'M'.M.'.eigenvalues'

M=31
set title 'M = ' . M
plot 'M'.M.'.eigenvalues'

M=33
set title 'M = ' . M
plot 'M'.M.'.eigenvalues'

Thank you for your consideration,
Micha

-- 
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Jetzt dabei sein: http://www.shortview.de/wasistshortview.php?mc=sv_ext_mf@gmx

Re: [Gnuplot-info] epslatex and different sub-folders

[Dieter J. <die...@t-...>]

Dear Christian,
what about using pdf rather than the epslatex plot? I do not know too exactly 
about your target output, but I think that you can simplify your life by 
switching to pdflatex and pdf-graphics - I did not find (as yet ...)  any 
reason to return to (IMHO) more complex steps to realize a graph.

And by using the postscript terminal you can easily achieve high quality 
graphics with high quality axes scaling and so on and so forth ....
Just my 2 cents here ...

gnuplot -> postscript, ghostscript -> pdf

(and if you need further assistance I can help you with getting the resulting 
graph exactly in the size you need for latex, so the \includegraphics - 
command needs nothing but a size information, let me know just in case ...)

Don't know whether this helps, but sometimes you can solve issues by 
circumventing them ....
take care




Dieter

-- 
-----------------------------------------------------------

                               |
                                \
                 /\_/\           |
                | ~x~ |/-----\   /
                 \   /-       \_/
  ^^__   _        /  _  ____   /
 <°°__ \- \_/     |  |/    |  |
  ||  ||         _| _|    _| _|

if you really want to see the pictures above - use some font
with constant spacing like courier! :-)
-----------------------------------------------------------Am Sonntag, 7. 
September 2008 21:40:31 schrieb Christian Schroeder:
> Hello,
>
> Has anyone figured out how to deal with this or is the answer obvious but
> missed by me? Maybe there is no obvious solution...
>
> I have a latex document in a folder above my gnuplot epslatex plot. I have
*****

[Gnuplot-info] epslatex and different sub-folders

[Christian S. <sch...@ph...>]

Hello,

Has anyone figured out how to deal with this or is the answer obvious but
missed by me? Maybe there is no obvious solution...

I have a latex document in a folder above my gnuplot epslatex plot. I have
two files which comprise the plot, say plot.tex and plot.eps. In my latex
file I \input{subfolder/plot.tex} and sure enough latex finds it. Of
course, it gets to the \includegraphics{plot} command contained in the
plot.tex file and it can't find the plot.eps file because it's looking not
in the plot folder, but in the latex document root directory.

I'd like to use epslatex but this is a problem which I cannot seem to
easily resolve. Your time for your thoughts on this would be most
appreciated.

Thanks,

Christian

[Gnuplot-info] re ad and plot a lot of files with consecutive numbering

[pemilti <mic...@lt...>]

hello,

it would be very nice if someone can help me. I have some datas in a file
with consecutive numbering.
All files are in the same directory. Is it possible to plot them all
automatically without a script like that i have copy. I think like a
programm with a loop for ... do... ? I have more than 250 data files which I
have to plot.

set grid
set title 'Data Netz Aus'
set xlabel 'Zeit [s]'
set terminal gif tiny size 1024,768
set y2label
set y2tics
set output 'Ausgabe_00.gif'
plot 'NetzAus_0.dat' using 1:2 with lines axes x1y1 title "Strom [A]", \
     'NetzAus_0.dat' using 1:3 with lines axes x1y1 title "ISQSOLL_VF [A]",
\
     'NetzAus_0.dat' using 1:4 with lines axes x1y2 title "UZK [V]", \
     'NetzAus_0.dat' using 1:5 with lines axes x1y2 title "Frequenz [Hz]"
set output 'Ausgabe_01.gif'
plot 'NetzAus_1.dat' using 1:2 with lines axes x1y1 title "Strom [A]", \
     'NetzAus_1.dat' using 1:3 with lines axes x1y1 title "ISQSOLL_VF [A]",
\
     'NetzAus_1.dat' using 1:4 with lines axes x1y2 title "UZK [V]", \
     'NetzAus_1.dat' using 1:5 with lines axes x1y2 title "Frequenz [Hz]"
set output 'Ausgabe_02.gif'
plot 'NetzAus_2.dat' using 1:2 with lines axes x1y1 title "Strom [A]", \
     'NetzAus_2.dat' using 1:3 with lines axes x1y1 title "ISQSOLL_VF [A]",
\
     'NetzAus_2.dat' using 1:4 with lines axes x1y2 title "UZK [V]", \
     'NetzAus_2.dat' using 1:5 with lines axes x1y2 title "Frequenz  [Hz]"
....
...
..

Thanks for your answers

pemilti 
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Re: [Gnuplot-info] re ad and plot a lot of files with consecutive numbering

[pemilti <mic...@lt...>]

Thomas Sefzick wrote:
> 
>> OK, but how I can read the files with consecutive numbering,
>> example: file1.dat, file2.dat,...
>> and write the output to out1.gif, out2.gif,..?
>> I've got a file whose name is used to generate other filenames
>> with consecutive numbering.
>>
>> I want to do this like this schema:
>> counter = counter + 1;
>> set output 'out_'counter'.gif'
>> plot 'NetzAus_'.counter'.dat' using 1:2 with lines axes x1y1 title "Strom
>> [A]"
>> if (counter<= counterMax) reread
> 
> you need a start script and another script for the loop:
> 
> start.plt:
> 
> set grid
> set title 'Data Netz Aus'
> set xlabel 'Zeit [s]'
> set terminal gif tiny size 1024,768
> set y2label
> set y2tics
> counter = 0
> counterMax = 100
> load 'loop.plt'
> 
> loop.plt:
> 
> counter = counter + 1;
> set output 'out_'.counter.'.gif'
> plot 'NetzAus_'.counter.'.dat' using 1:2 with lines axes x1y1 title "Strom
> [A]"
> if (counter<= counterMax) reread
> 
> and then you start the whole thing at the gnuplot
> command prompt:
> 
> load 'start.plt'
> 
> 

@ Thomas Sefzick
Thanks for your great and fast help. It works very nice.  :jumping:

@All
Please note: If you want to start with 0 you have to set counter to -1.

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Re: [Gnuplot-info] re ad and plot a lot of files with consecutive numbering

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

> OK, but how I can read the files with consecutive numbering,
> example: file1.dat, file2.dat,...
> and write the output to out1.gif, out2.gif,..?
> I've got a file whose name is used to generate other filenames
> with consecutive numbering.
>
> I want to do this like this schema:
> counter = counter + 1;
> set output 'out_'counter'.gif'
> plot 'NetzAus_'.counter'.dat' using 1:2 with lines axes x1y1 title "Strom
> [A]"
> if (counter<= counterMax) reread

you need a start script and another script for the loop:

start.plt:

set grid
set title 'Data Netz Aus'
set xlabel 'Zeit [s]'
set terminal gif tiny size 1024,768
set y2label
set y2tics
counter = 0
counterMax = 100
load 'loop.plt'

loop.plt:

counter = counter + 1;
set output 'out_'.counter.'.gif'
plot 'NetzAus_'.counter.'.dat' using 1:2 with lines axes x1y1 title "Strom
[A]"
if (counter<= counterMax) reread

and then you start the whole thing at the gnuplot
command prompt:

load 'start.plt'

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Re: [Gnuplot-info] re ad and plot a lot of files with consecutive numbering

[pemilti <mic...@lt...>]

Thomas Sefzick wrote:
> 
> simulate the loop with the 'reread' command
> 
> see
> help string
> and
> help reread
> 
> (or
> http://www.gnuplot.info/docs/node151.html
> and
> http://www.gnuplot.info/docs/node69.html
> )
> 
> 

OK, but how I can read the files with consecutive numbering, example:
file1.dat, file2.dat,... and write the output to out1.gif, out2.gif,..? 
I've got a file whose name is used to generate other filenames with
consecutive numbering.


I want to do this like this schema:
counter = counter + 1;
set output 'out_'counter'.gif'
plot 'NetzAus_'.counter'.dat' using 1:2 with lines axes x1y1 title "Strom
[A]"
if (counter<= counterMax) reread
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Re: [Gnuplot-info] re ad and plot a lot of files with consecutive numbering

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

simulate the loop with the 'reread' command

see
help string
and
help reread

(or
http://www.gnuplot.info/docs/node151.html
and
http://www.gnuplot.info/docs/node69.html
)

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Re: [Gnuplot-info] legend with scatterplot

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

> Hi all,
>
> I'm producing scatterplots of data with gnuplot, but as there is a
> lot of data all is plotted with pointsize 0.2 (for use with postscript
> output). Works very well, no problem here. The problem lies in
> the fact the legend is using also that tiny dot to indicate the different
> graphs. Is there a way to tell/persuade/fool the legend and using a
> line, a different symbol, or a bigger symbol than in the plot? Is there
> something like a 'nodata' option in gnuplot? 

no, but there is the 'notitle' option and the fact, that gnuplot ignores
undefined values. these can be used to plot the data without legend
and then plot nothing with legend:

plot 'datafile' using 1:2 notitle linetype 1 pointtype 1 pointsize 0.2, 0/0
title 'description' with points linetype 1 linewidth 3 pointtype 1 pointsize
5

or a little bit shorter:

plot 'datafile' u 1:2 not lt 1 pt 1 ps 0.2, 0/0 t 'description' w p lt 1 lw
3 pt 1 ps 5

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[Gnuplot-info] legend with scatterplot

[markjoe <na...@ma...>]

Hi all,

I'm producing scatterplots of data with gnuplot, but as there is a lot of
data all is plotted with pointsize 0.2 (for use with postscript output).
Works very well, no problem here. The problem lies in the fact the legend is
using also that tiny dot to indicate the different graphs. Is there a way to
tell/persuade/fool the legend and using a line, a different symbol, or a
bigger symbol than in the plot? Is there something like a 'nodata' option in
gnuplot? 

Cheers, Mark
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Re: [Gnuplot-info] line styles?

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

plot '/tmp/c' using 1:2 title 'c' with linespoints linetype 3 pointtype 3
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Re: [Gnuplot-info] arrows in a multiplot

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

> I'm trying to plot two graphs stacked on top of each other
> (with multiplot) and then to connect them with lines. Is there
> any way to do it using arrows?

arrow from 0,0 in the lower plot to 0,0 in the upper plot:

gnuplot> unset arrow
gnuplot> set multiplot layout 2,1
multiplot> plot sin(x)
multiplot> set arrow 1 from first 0,0 to first 0, screen 0.75
multiplot> plot cos(x)
multiplot> unset multiplot

or (better):

gnuplot> unset arrow
gnuplot> set multiplot layout 2,1
multiplot> set arrow 1 from first 0, screen 0.5 to first 0,0
multiplot> plot sin(x)
multiplot> set arrow 1 from first 0,0 to first 0, screen 0.5 nohead
multiplot> plot cos(x)
multiplot> unset multiplot

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Re: [Gnuplot-info] construcing polar grid for pm3d data: replot/reread problem

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

that's what the 'for' instruction in gnuplot 4.3 (cvs-version) is for:

splot for [a=1:5]
Radius(ThetaMax,Dtheta,a)*cos(u),Radius(ThetaMax,Dtheta,a)*sin(u),0.0

produces a sequence of 5 circles.

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Re: [Gnuplot-info] Can't unset data

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

> I have made a config file myplot.p containing:
>
> set key title "test"
> set key spacing 1.3
> set xrange [ 0 : pi ]
> set yrange [ 0 : 1.5 ]
> plot sin(x)**2 ti "sin^2(x)", \
>          sin(x)**3      ti "sin^3(x)",\
>          sqrt(sin(x))   ti "sin^{1/2}(x)"
>
> I then load it from gnuplot and the plots are shown just fine.
> But afterwards I cannot remove the key title.

once you plotted the graph the key is there, that's normal.
for any changes you need to plot the graph again.

> I have tried to type unset key and clear but its does not
> disappear when I load myplot.p again. What is wrong?

if you 'unset key' you need to plot the graph again,
but *not* by loading the script, then you a defining the
key again (1st line), and it's plotted.
after 'unset key' you could do a 'replot', then there will
be no keys anymore.
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Re: [Gnuplot-info] inserting vertial line with description?

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

> Is there a way to insert a vertical into a graph along
> with a description (similar to the image below...)?
> ...
> Given that I'm programmatically generating the plot,
> it would be good if I could programmatically add a
> vertical line along with a description as well.

try something like this:

set style line 1 linecolor rgb "red" linewidth 10
set arrow 1 from first "2008-07-28 15:00",graph 0.1 to first "2008-07-28
15:00",graph 0.9 nohead linestyle 1
set label 1 "important   " at first "2008-07-28 15:00",graph 0.8 right font
",30" textcolor rgb "red"

and don't forgat to replace the time string by the appropriate
one according to your timefmt specification.

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Re: [Gnuplot-info] eps - cuts down the x-label

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

> My gnuplot says unexpected or unrecognized option, or
> undefined variable: noenhanced, depending on where I insert it.

oh, i see, you are using gnuplot version 4.0

either upgrade to the actual gnuplot version, which would
be the best solution, or (not a good solution) use a program
like 'epstool' and postprocess each eps-file to calculate the
proper bounding box.

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Re: [Gnuplot-info] Problem with xdata timefmt?

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

'help timefmt' says:

> ...
>        Format       Explanation
>        %d           day of the month, 1--31
>        %m           month of the year, 1--12
>        %y           year, 0--99
>        %Y           year, 4-digit
> ...

so, 

set timefmt "%d/%m/%Y"

should work.

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[Gnuplot-info] FW: Gnuplot in ubuntu

[miguel o. v. <kli...@ho...>]

 Hi,
 
I just installed gnuplot in ubuntu 7.10 i didn't have any problem with the install but when I try to use the png terminal I cannot do it.
 
Does anybody knows why? maybe I don’t have the library to use the png.
Please help me
 
ThanksBest regards
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Re: [Gnuplot-info] Ebhanced terminal type with Multiplot error

[Suman D. <su...@ph...>]

hi,

Thank you for the quick response.. my terminal type is postscript. But I
don't understand how should i use secondary y-axes?? 


Thanking you,

Suman


Hans-Bernhard Bröker-2 wrote:
> 
> Suman Dhayal wrote:
> 
>> But right now, I am need to combine two plots
>> together whose x-coordinate scale factor is the same but not the
>> y-coordinate. I used the multiplot command to do this 
> 
> Multiplot is almost never the right technique for that kind of job. 
> Secondary y axes would be a lot easier to use.
> 
>> and since I needed to change the font also for some labels and
>> titles, I used the enhanced terminal type.
> 
> Nitpick: "enhanced" is not a terminal type.  It's a common terminal 
> option.  What actually was your terminal type?
> 
>> not use the terminal type "enhanced", the "~" label works but when I
>> use it along with this terminal,
> 
> Read "help enhanced" again, slowly.  Find the '~' and learn what you 
> just did, and how not to do it.
> 
> -------------------------------------------------------------------------
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