gnuplot-info — For questions and discussion about gnuplot

[Gnuplot-info] 'plot for' syntax

[Yanni <y.g...@ma...>]

Hello everyone

Can someone please help me with 'plot for'? I have 10 files I would like 
to plot.
My files are in this format:

HeliumFoil_23434_2346673_642345-43.vec
............
............
............
HeliumFoil_23434_2346640_642340-40.vec

I looked at the 'help info' and online and found out about the "plot 
for" syntax. I'm trying to plot all the files at once without having to 
do each one of them individually but I'm struggling to define x in the 
'plot for' command below:

plot for [x=1:10] '*.vec' using 1:2 title 'Flow'.x

When I run the above, it complains about not being able to find '.vec' 
file. I think I have to define
x inside the '*.vec' but I don't know how.

Many thanks for your support
goud

[Gnuplot-info] Move labels of the x and y axis to the very right / top

[Nis M. <nis...@go...>]

Dear all,

I really love to use gnuplot for my daily work. However, most of the
people in my community work with ROOT, which is great for our specific
analyzing purposes but is kind of a exhausting tool for displaying the
results. In the past I successfully used gnuplot for this and I am very
happy with the results. In order to make my plots look similar with ROOT
results I have to move the labels of the x (y) axis to the very right
(top). Currently I solve this issue by hiding the xlabel via (I heavily
use TeX within my figures)

xlabel "\\phantom{...}"

so the lower margin is set automatically and placing the actual visible
label via

set label "..." at graph 1,xxx right

The problem is, that I have to figure out the correct values for xxx via
trial-and-error, whenever I change the size of the plot. Is it possible
to just move the xlabel (ylabel) to the desired position, namely the
very right (top) of the graph in a kind of automatic way?

I am very sure, that my solution is ugly and far away from the 'correct'
solution.
Just in case, there is not such a solution already implemented, I think
it is rather simple for experts to add this feature?

Find below a link of a publication that has such an orientation of the
labels:

https://arxiv.org/pdf/1507.03414v2.pdf

Thanks a lot!

Cheers,

Re: [Gnuplot-info] Default Terminal?

[tmacchant <tma...@ya...>]

>I know that the terminal can be re-set after installation.  But, when
GNUPLOT is first installed, what terminal, if any, is set as the default
terminal if I select default?

>So that I can select the terminal, where can I find an explanation of the
features of the windows, wxt, and qt terminals?

Sorry for late reply.
On the windows binary package distributed on SourceForge, the wxt terminal
is set to be default.
For features of each terminal, please see 

gnuplot manual 
http://gnuplot.sourceforge.net/docs_5.0/gnuplot.pdf

or 

gnuplot help with 
gnuplot> help terminal windows
or
gnuplot> help terminal wxt
or
gnuplot> help terminal qt

Tatsuro 



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Re: [Gnuplot-info] making a dataset "default off" in SVG plot

[Ethan A M. <eam...@gm...>]

On Monday, 06 February 2017 10:30:11 AM Ethan A Merritt wrote:
> On Monday, 06 February 2017 12:00:26 PM Kevin Klein wrote:
> > I am using the SVG output to create interactive plots with multiple
> > datasets.  Each dataset's visibility can be toggled off by clicking its
> > corresponding point in the key, but all datasets start out visible by
> > default.  Is there a way to make datasets start out not visible by default?
> 
> Not from inside gnuplot, but it would be easy enough to
> edit the resulting *.svg file before displaying it.
> 
> In the *.svg output file you will find lines like this, one per plot:
> 
> <g id="gnuplot_plot_1_keyentry" visibility="visible" onclick="gnuplot_svg.toggleVisibility(evt,'gnuplot_plot_1')">
>
> Change visibility="visible" to visibility="hidden".

Oops, sorry. I was too quick to answer.

The line you have to change is not the one that says
  
<g id="gnuplot_plot_1_keyentry" ...

That changes the visibility of the key entry itself.
The visibility of the corresponding plot can be changed on a
preceeding line.
 
An example change to hide plot 1 on entry would look like this:

diff -ur simple.svg hide.svg
--- simple.svg  2017-02-06 13:06:19.613753344 -0800
+++ hide.svg    2017-02-06 13:06:00.159755956 -0800
@@ -490,7 +490,7 @@
 </g>
 <g fill="none" color="black" stroke="currentColor" stroke-width="1.00" stroke-linecap="butt" stroke-linejoin="miter">
        <path stroke='black'  d='M62.2,129.1 L62.2,75.1 L220.6,75.1 L220.6,129.1 L62.2,129.1 Z  '/></g>
-       <g id="gnuplot_plot_1"><title>sin(x)</title>
+       <g id="gnuplot_plot_1" visibility="hidden"><title>sin(x)</title>
 <g fill="none" color="black" stroke="currentColor" stroke-width="1.00" stroke-linecap="butt" stroke-linejoin="miter">
        <g id="gnuplot_plot_1_keyentry" visibility="visible" onclick="gnuplot_svg.toggleVisibility(evt,'gnuplot_plot_1')">
        <g transform="translate(161.8,88.0)" stroke="none" fill="black" font-family="Arial" font-size="12.00"  text-anchor="end">


   Ethan

Re: [Gnuplot-info] making a dataset "default off" in SVG plot

[Ethan A M. <eam...@gm...>]

On Monday, 06 February 2017 12:00:26 PM Kevin Klein wrote:
> I am using the SVG output to create interactive plots with multiple
> datasets.  Each dataset's visibility can be toggled off by clicking its
> corresponding point in the key, but all datasets start out visible by
> default.  Is there a way to make datasets start out not visible by default?

Not from inside gnuplot, but it would be easy enough to
edit the resulting *.svg file before displaying it.

In the *.svg output file you will find lines like this, one per plot:

<g id="gnuplot_plot_1_keyentry" visibility="visible" onclick="gnuplot_svg.toggleVisibility(evt,'gnuplot_plot_1')">

Change visibility="visible" to visibility="hidden".

	Ethan


-- 

[Gnuplot-info] making a dataset "default off" in SVG plot

[Kevin K. <kk...@gm...>]

I am using the SVG output to create interactive plots with multiple
datasets.  Each dataset's visibility can be toggled off by clicking its
corresponding point in the key, but all datasets start out visible by
default.  Is there a way to make datasets start out not visible by default?

Re: [Gnuplot-info] how to plot a parametric function "with circles"

[Ethan A M. <eam...@gm...>]

On Monday, 16 January 2017 02:56:41 PM Ethan A Merritt wrote:
> On Monday, 16 January 2017 05:13:57 PM Ether Jones wrote:
> > Hello.
> > 
> > I want to plot the parametric function
> > x(t) = t+log(t+1)
> > y(t) = sqrt(t)+sin(t)
> > 
> > from t=0 to t=2
> > 
> > in steps of dt = 0.2
> > 
> > using circles of radius 0.05 (instead of points)
> 
> set samples 21

    oops.  11, not 21

> plot sample [t=0:2] '+' using (t+log(t+1)) : (sqrt(t)+sin(t)) : (0.05) with circles
> 
> There is currently no way to directly specify a step size for sampling, but since you
> can control the endpoints and the number of samples it is still possible. 
> 
> > I searched for about 2 hours but could not find how to do this directly
> > in gnuplot.  I could create a data file and then plot that, but I want to
> > plot the functions directly.
> > 
> > Is there a way to do that in gnuplot?
> 
> Several, but I think the one I show above is the easiest.

-- 

Re: [Gnuplot-info] how to plot a parametric function "with circles"

[Ethan A M. <eam...@gm...>]

On Monday, 16 January 2017 05:13:57 PM Ether Jones wrote:
> Hello.
> 
> I want to plot the parametric function
> x(t) = t+log(t+1)
> y(t) = sqrt(t)+sin(t)
> 
> from t=0 to t=2
> 
> in steps of dt = 0.2
> 
> using circles of radius 0.05 (instead of points)

set samples 21
plot sample [t=0:2] '+' using (t+log(t+1)) : (sqrt(t)+sin(t)) : (0.05) with circles

There is currently no way to directly specify a step size for sampling, but since you
can control the endpoints and the number of samples it is still possible. 

> I searched for about 2 hours but could not find how to do this directly
> in gnuplot.  I could create a data file and then plot that, but I want to
> plot the functions directly.
> 
> Is there a way to do that in gnuplot?

Several, but I think the one I show above is the easiest.

[Gnuplot-info] how to plot a parametric function "with circles"

[Ether J. <ma...@et...>]

Hello.

I want to plot the parametric function
x(t) = t+log(t+1)
y(t) = sqrt(t)+sin(t)

from t=0 to t=2

in steps of dt = 0.2

using circles of radius 0.05 (instead of points)

I searched for about 2 hours but could not find how to do this directly
in gnuplot.  I could create a data file and then plot that, but I want to
plot the functions directly.

Is there a way to do that in gnuplot?

Thank you.

Re: [Gnuplot-info] Bad text rendering quality when using epslatex

[Agustin G. <ag...@fi...>]

Although I am not a big expert, I can tell you that I have had
the same problem when using "pdflatex" (that is the quality of the
document is not very good, sometimes messed up). So I decided to
follow the good old-fashioned way. That is, assuming that you now 
have a good figure (plot.eps) file. You put it inside your
maindocument.tex. Then do

> latex maindocument
> dvips -o maindocument.ps maindocument.dvi
> ps2pdf maindocument.ps

The resulting file "maindocument.pdf" is now of a good quality
and the figure inside has the same quality as the original
plot.eps . It is just two lines more; so, what's the problem?

Hope this helps.

Agustin



On Mon, 26 Dec 2016 11:30:28 +0000 (UTC), Arham Amouie wrote
> Hello
> 
> I am using epslatex terminal of gnuplot in standalone mode to make 
> plots. As you know, this terminal produces a .tex file (containing 
> all texts to be shown on plot) as well as an .eps file. (Let's call 
> them plot.tex & plot.eps). Then I run the following commands:latex plot.tex
> dvips -E -o finalplot.eps plot.dviThis produces the file 
> finalplot.eps, which I use in my main .tex document. Now, the 
> problem is that, after converting to .pdf using PdfLaTeX, especially 
> when I zoom in, I notice that the quality of the text inside the 
> plot is not as good as the quality of the other texts in the 
> document. It seems as if the text inside the plot is rendered 
> without anti-aliasing. What can I do to improve its quality? I also 
> have another question: How can I be sure that all the fonts are 
> embedded in the .eps file? (This may be important because the main 
> .tex file will finally be rendered on another system by someone 
> else.) Thanks in advance, and sorry if my English isn't quite good. 
> :-) 
> ------------------------------------------------------------------------------
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> Access to Intel Xeon Phi processor-based developer platforms.
> With one year of Intel Parallel Studio XE.
> Training and support from Colfax.
> Order your platform today.http://sdm.link/intel
> _______________________________________________
> gnuplot-info mailing list
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> Membership management via: 
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[Gnuplot-info] Bad text rendering quality when using epslatex

[Arham A. <erh...@ya...>]

Hello 

I am using epslatex terminal of gnuplot in standalone mode to make plots. As you know, this terminal produces a .tex file (containing all texts to be shown on plot) as well as an .eps file. (Let's call them plot.tex & plot.eps). Then I run the following commands:latex plot.tex
dvips -E -o finalplot.eps plot.dviThis produces the file finalplot.eps, which I use in my main .tex document. Now, the problem is that, after converting to .pdf using PdfLaTeX, especially when I zoom in, I notice that the quality of the text inside the plot is not as good as the quality of the other texts in the document. It seems as if the text inside the plot is rendered without anti-aliasing. What can I do to improve its quality?
I also have another question: How can I be sure that all the fonts are embedded in the .eps file? (This may be important because the main .tex file will finally be rendered on another system by someone else.)
Thanks in advance, and sorry if my English isn't quite good. :-) 

Re: [Gnuplot-info] how to get syscall errno

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

Am 17.12.2016 um 19:42 schrieb ivana richterova:
> Hi all,
>
> is there any way how to get the syscall errno for system command in gnuplot?

In a nutshell: you can't.  Which is OK, since gnuplot doesn't give you 
general access to syscalls, anyway.

Re: [Gnuplot-info] how to get syscall errno

[ivana r. <iva...@mf...>]

Hi all,

I'd like to specify.

I've found that on linux, I get GPVAL_ERRNO set (not GPVAL_ERRMSG) but
the execution go on.

Contrary on windows, The execution is aborted, "popen failed" printed
out and GPVAL_ERRNO and GPVAL_ERRMSG are not set.

This is worse. Well, I can set some variable and reset it after
syscalls, so I know if loaded ended successfully, but it should work
better I guess.

Iva

Re: [Gnuplot-info] howto change shell on Linux

[BBands <bb...@gm...>]

Could write your commands to a file and select the shell via a sha-bang?

#!/bin/bash
# Proper header for a Bash script.

# Some other possibilities

#!/bin/sh
#!/bin/bash
#!/usr/bin/perl
#!/usr/bin/tcl
#!/bin/sed -f
#!/bin/awk -f

    John


On Sat, Dec 17, 2016 at 9:38 AM, Ethan A Merritt <EAM...@gm...>
wrote:

> On Saturday, 17 December 2016 01:48:53 PM ivana richterova wrote:
> > Hi all,
> >
> > I'd like to change shell used for system calls on linux. I quess it
> > should work the same way as Unix according to manual (set SHELL
> > env_var) but it doesn't.
>
> Gnuplot uses the system() call, which always uses /bin/sh
> See man (3) system:
>
> SYNOPSIS
>        #include <stdlib.h>
>
>        int system(const char *command);
>
> DESCRIPTION
>        The  system()  library  function uses fork(2) to create a child
> process that exe‐
>        cutes the shell command specified in command using execl(3) as
> follows:
>
>            execl("/bin/sh", "sh", "-c", command, (char *) 0);
>
>
> So no, it is not possible to change the shell used for a system call.
>
>
> >
> > On
> > #Linux deimos 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-3 (2015-04-23)
> > x86_64 GNU/Linux
> > #GNU bash, version 4.3.33(1)-release (x86_64-pc-linux-gnu)
> >
> > I get:
> > #> export SHELL=/bin/bash; gnuplot -d -e 'pr system("echo $0 $SHELL")'
> > # sh /bin/bash
> >
> > Does anybody know how to change shell used by gnuplot on linux?
> >
> > thanks
> >
> > Iva
> >
> > ------------------------------------------------------------
> ------------------
> > Check out the vibrant tech community on one of the world's most
> > engaging tech sites, SlashDot.org! http://sdm.link/slashdot
> > _______________________________________________
> > gnuplot-info mailing list
> > gnu...@li...
> > Membership management via: https://lists.sourceforge.net/
> lists/listinfo/gnuplot-info
>
>
> ------------------------------------------------------------
> ------------------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, SlashDot.org! http://sdm.link/slashdot
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> Membership management via: https://lists.sourceforge.net/
> lists/listinfo/gnuplot-info
>

[Gnuplot-info] how to get syscall errno

[ivana r. <iva...@mf...>]

Hi all,

is there any way how to get the syscall errno for system command in gnuplot?

thanks!

Iva

Re: [Gnuplot-info] howto change shell on Linux

[Ethan A M. <EAM...@gm...>]

On Saturday, 17 December 2016 01:48:53 PM ivana richterova wrote:
> Hi all,
> 
> I'd like to change shell used for system calls on linux. I quess it
> should work the same way as Unix according to manual (set SHELL
> env_var) but it doesn't.

Gnuplot uses the system() call, which always uses /bin/sh
See man (3) system:

SYNOPSIS
       #include <stdlib.h>

       int system(const char *command);

DESCRIPTION
       The  system()  library  function uses fork(2) to create a child process that exe‐
       cutes the shell command specified in command using execl(3) as follows:

           execl("/bin/sh", "sh", "-c", command, (char *) 0);


So no, it is not possible to change the shell used for a system call.


> 
> On
> #Linux deimos 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-3 (2015-04-23)
> x86_64 GNU/Linux
> #GNU bash, version 4.3.33(1)-release (x86_64-pc-linux-gnu)
> 
> I get:
> #> export SHELL=/bin/bash; gnuplot -d -e 'pr system("echo $0 $SHELL")'
> # sh /bin/bash
> 
> Does anybody know how to change shell used by gnuplot on linux?
> 
> thanks
> 
> Iva
> 
> ------------------------------------------------------------------------------
> Check out the vibrant tech community on one of the world's most 
> engaging tech sites, SlashDot.org! http://sdm.link/slashdot
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> Membership management via: https://lists.sourceforge.net/lists/listinfo/gnuplot-info

Re: [Gnuplot-info] howto change shell on Linux

[ivana r. <iva...@mf...>]

ps. the gnuplot version is 5.0 patchlevel 5    (last modified 2016-10-02)

[Gnuplot-info] howto change shell on Linux

[ivana r. <iva...@mf...>]

Hi all,

I'd like to change shell used for system calls on linux. I quess it
should work the same way as Unix according to manual (set SHELL
env_var) but it doesn't.

On
#Linux deimos 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-3 (2015-04-23)
x86_64 GNU/Linux
#GNU bash, version 4.3.33(1)-release (x86_64-pc-linux-gnu)

I get:
#> export SHELL=/bin/bash; gnuplot -d -e 'pr system("echo $0 $SHELL")'
# sh /bin/bash

Does anybody know how to change shell used by gnuplot on linux?

thanks

Iva

Re: [Gnuplot-info] How & where to insert a script in order that gnuplot 3.7 can process it at a Kindle Fire 5 tablet?

[Tait <gnu...@t4...>]

I don't have anything useful to offer regarding gnuplot on Android.
I am surprised, given the language and locked-down nature of Android
devices in general, that gnuplot's dependent C libraries (qt, wxt,
even cairo, ...) or the interfaces and system calls needed by them
would be available to a user.

That said, you've asked about gnuplot 3, which is around 20 years
old. Whatever I might be able to offer regarding gnuplot certainly
doesn't apply that far back.


Benny7440 <ben...@ya...> said (on 2016/12/03):
> Date: Sat, 3 Dec 2016 08:37:16 -0700 (MST)
> From: Benny7440 <ben...@ya...>
> To: gnu...@li...
> Subject: Re: [Gnuplot-info] How & where to insert a script in order that
>  gnuplot 3.7 can process it at a Kindle Fire 5 tablet?
> 
> I would like to know if here are active members with an android tablet where
> this version of gnuplot has been installed & used that are willing to share
> their knowledge with me?
> 
> Have read & re-read my post to check if there's something faulty about it
> and found nothing! I thought that here I would find an expert group of
> people but I'm really disappointed!

Re: [Gnuplot-info] How & where to insert a script in order that gnuplot 3.7 can process it at a Kindle Fire 5 tablet?

[Benny7440 <ben...@ya...>]

I would like to know if here are active members with an android tablet where
this version of gnuplot has been installed & used that are willing to share
their knowledge with me?

Have read & re-read my post to check if there's something faulty about it
and found nothing! I thought that here I would find an expert group of
people but I'm really disappointed!



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Re: [Gnuplot-info] howto do a surface plot with contour lines and dots for the original data points

[Lorenz <lor...@ya...>]

Ethan Merritt wrote:
>splot "data.text" u 1:2:3 w pm3d, "" u 1:2:3 w p pt 7 nocontour

ah well, I was afraid it would be that easy 8-)


On the other hand, it's a bit confusing that there is a way to locally
disable global settings but non to enable them locally.
-- 

Lorenz

Re: [Gnuplot-info] howto do a surface plot with contour lines and dots for the original data points

[Ethan M. <eam...@gm...>]

splot "data.text" u 1:2:3 w pm3d, "" u 1:2:3 w p pt 7 nocontour

On Tue, Nov 29, 2016 at 5:59 AM, Lorenz <lor...@ya...> wrote:

> Hello all,
>
> I'm trying to create a 3D surface plot with contour lines and overlay
> it with dots denoting the original data points
>
> what I've got so far is the following:
>
> >set contour both
> >set cntrparam levels incremental 0,10,100
> >splot "data.text" u 1:2:3 w pm3d, "" u 1:2:3 w p pt 7
>
> That's almost what I want, besides the that dots on the contour lines
> (both on the contour lines themself and on there projection).
>
>
> If I reduce the splot command to:
>
> >set contour both
> >set cntrparam levels incremental 0,10,100
> >splot "data.text" u 1:2:3 w pm3d
>
> I get the plot without any points. Adding the "w p" part adds the
> lines both to the data points, as to the contourlines.
>
> Using only the second part:
>
> >set contour both
> >set cntrparam levels incremental 0,10,100
> >splot "data.text" u 1:2:3 w p pt 7
>
> results in only (but all) the dots I get from the combined command.
>
> So it looks like I need to "unset contour" between the two parts of
> the splot command.
> Is this possible? Or do I need a different approach altogether?
> --
>
> Lorenz
>
>
> ------------------------------------------------------------
> ------------------
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> Membership management via: https://lists.sourceforge.net/
> lists/listinfo/gnuplot-info
>

Re: [Gnuplot-info] (no subject)

[Lorenz <lor...@ya...>]

Lorenz wrote:
>set delivery off

Ups, sorry
-- 

Lorenz

[Gnuplot-info] howto do a surface plot with contour lines and dots for the original data points

[Lorenz <lor...@ya...>]

Hello all,

I'm trying to create a 3D surface plot with contour lines and overlay
it with dots denoting the original data points

what I've got so far is the following:

>set contour both
>set cntrparam levels incremental 0,10,100
>splot "data.text" u 1:2:3 w pm3d, "" u 1:2:3 w p pt 7

That's almost what I want, besides the that dots on the contour lines
(both on the contour lines themself and on there projection).


If I reduce the splot command to:

>set contour both
>set cntrparam levels incremental 0,10,100
>splot "data.text" u 1:2:3 w pm3d

I get the plot without any points. Adding the "w p" part adds the
lines both to the data points, as to the contourlines.

Using only the second part:

>set contour both
>set cntrparam levels incremental 0,10,100
>splot "data.text" u 1:2:3 w p pt 7

results in only (but all) the dots I get from the combined command.

So it looks like I need to "unset contour" between the two parts of
the splot command.
Is this possible? Or do I need a different approach altogether?
-- 

Lorenz

[Gnuplot-info] (no subject)

[Lorenz <lor...@ya...>]

set delivery off