gnuplot-info — For questions and discussion about gnuplot

Re: [Gnuplot-info] Plotting a time series (elapsed time) with time values > 24 hours

[Armin A. <aar...@nd...>]

Sorry, I guess I should have added a bit more information.
 
The plot attached is generated using the following sequence:
 
set style data lines
set xdata time
set timefmt "%H:%M:%S"
set format x "%H:%M"
plot 'test.dat' u 1:2
 
The plot looks the way I would like it to look, except for the labels on the
x-axis.
As you can see from the data file, the data is logged as elapsed time from
an arbitrary start point, given in hh:mm:ss. For the x-labelling I don't
care about the seconds, hence I use a hh:mm format.
I know that this is not a common date/time format. In Excel I can specify
[h]:mm as my formatting, in which case the hours keep incrementing beyond
24. I was just wondering if gnuplot has a similar functionality.
 
Thanks,
Armin

http://www.nabble.com/file/p19994043/test.png 
http://www.nabble.com/file/p19994043/test.dat test.dat 


Hans-Bernhard Bröker-2 wrote:
> 
> 
> You forgot to show your timefmt setting, but it's highly doubtful this 
> will do anywhere near what you think it does.  
> 
> 

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[Gnuplot-info] Problem with splot

[l_johan_k <l_j...@ho...>]

Hej!

I want to graph a surface in gnuplot of the following matrix:

0 0 0 0 0 0	
0 0.00641154 0.01751273 0.01554609 0.00609739 0
0 -3.502E-05 0.009302	0.02995384	0.01733484	0	
0 0.02041813 0.03013938 -0.17901065 -0.18546722	0
0 0.00014728 0.00946959 0.03005793 0.01772059 0
0 0 0 0 0 0

I use the following settings:

unset surface
set terminal windows color enhanced
set ticslevel 0
set xtics(" " 0, "1" 1, "2" 2, "3" 3, "4" 4, " " 5)
set ytics(" " 0, "1" 1, "2" 2, "3" 3, "4" 4, " " 5)
set grid
set dgrid3d 70,70
set pm3d
splot "filname.txt" matrix

(filename.txt = matrix)

The problem is that the plot doesn't show the correct values.

Anyone who can help me?

Best wishes,

l_johan_k
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Re: [Gnuplot-info] Problem with splot

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

with 'set dgrid3d 70,70' you are interpolating over the matrix
with an inappropriate grid.

the arguments to 'set dgrid3d' should be:
n * (number_of_xdata - 1) + 1
n * (number_of_ydata - 1) + 1

otherwise your interpolation grid will not contain the data points
you have given.

> I want to graph a surface in gnuplot of the following matrix:
>
> 0 0 0 0 0 0	
> 0 0.00641154 0.01751273 0.01554609 0.00609739 0
> 0 -3.502E-05 0.009302	0.02995384	0.01733484	0	
> 0 0.02041813 0.03013938 -0.17901065 -0.18546722	0
> 0 0.00014728 0.00946959 0.03005793 0.01772059 0
> 0 0 0 0 0 0
>
> I use the following settings:
>
> unset surface
> set terminal windows color enhanced
> set ticslevel 0
> set xtics(" " 0, "1" 1, "2" 2, "3" 3, "4" 4, " " 5)
> set ytics(" " 0, "1" 1, "2" 2, "3" 3, "4" 4, " " 5)
> set grid
> set dgrid3d 70,70
> set pm3d
> splot "filname.txt" matrix
> 
> (filename.txt = matrix)
> 
> The problem is that the plot doesn't show the correct values.

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Re: [Gnuplot-info] Plotting a time series (elapsed time) with time values > 24 hours

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

Armin Armbruster wrote:

> I'm using the following x-axis formatting:
> 
> set xrange ["00:00:00":"60:00:00"]

You forgot to show your timefmt setting, but it's highly doubtful this 
will do anywhere near what you think it does.  Try "show xrange" 
afterwards to see what you get, then read "help timefmt" again to see why.

> set xtics "0:00","6:00"

This makes even less sense.  You can't really have the xtics starting 
point in a different time/date format than the xrange endpoints.

And it rather rarely makes sense to give the <increment> of a tic 
setting as a data string, since it's not an absolute time, but a 
difference.  Just give the number of seconds instead.

> My problem is that after 24 hours I get "00:00" instead of "24:00" in other
> words, the x-labelling wraps around every 24 hours rather than incrementing
> linearly.

How do you think gnuplot is supposed to guess a new day started if your 
data (and the timefmt setting) don't contain information about days?

> Question: Is there a way to force the xlabels to increment beyond 24 hours.

No.

> Note: I don't want to use a different format that displays days as well, I
> want to keep it in the "hh:mm" formatting.

The output format is independent.

[Gnuplot-info] Plotting a time series (elapsed time) with time values > 24 hours

[Armin A. <aar...@nd...>]

Hi,

I'm trying to plot a time series that shows data as a function of (elapsed)
time.
I'm using the following x-axis formatting:

set xrange ["00:00:00":"60:00:00"]
set xtics "0:00","6:00"
set format x "%H:%M"

My problem is that after 24 hours I get "00:00" instead of "24:00" in other
words, the x-labelling wraps around every 24 hours rather than incrementing
linearly.

Question: Is there a way to force the xlabels to increment beyond 24 hours.
Note: I don't want to use a different format that displays days as well, I
want to keep it in the "hh:mm" formatting.

Thanks,
Armin



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Re: [Gnuplot-info] gnuplot 4.2, linear function and circular vision

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

Biliards wrote:

> I would like create graph about this plot, but into xy cartesian graph where
> x is a circle and not a infinity line. so x=10000 is first of x=1.. because
> they are in a circle..

That description is still almost self-contradictory, but maybe I 
understood it this time.  Looks like you're looking for 'help polar'. 
Something like
	
	set polar
	set grid polar
	plot 'file' using $1/10000.*2*pi, 2

Re: [Gnuplot-info] gnuplot 4.2, linear function and circular vision

[Biliards <ale...@gm...>]

sorry for my little english.
I think that with an example, maybe I could describe the problem.
I have got a tabular data about xyplot. My plot has got 1<x<10000 and
-50<y<50.
It is premised that y value is random, so my plot is an alternate positive
peaks and negative peaks.
I would like create graph about this plot, but into xy cartesian graph where
x is a circle and not a infinity line. so x=10000 is first of x=1.. because
they are in a circle..
is it possible with gnuplot?
example:
http://www.g-language.org/GenomeProjector/wiki/_media/plasmidmap_ecoli.png?w=&h=&cache=cache
thanks,
alessandra.


Hans-Bernhard Bröker-2 wrote:
> 
> Biliards wrote:
> 
>> I have got data about 2 linear function. 
>> I would like create a graph about this functions as 2 circle lines..
>> because
>> end position about linear function precede start position..
> 
> Sorry, but you'll have to re-phrase that problem description.  As it is, 
> it makes no sense whatsoever.  I assume the meaning must have been lost 
> in translation.
> 
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Re: [Gnuplot-info] gnuplot 4.2, linear function and circular vision

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

Biliards wrote:

> I have got data about 2 linear function. 
> I would like create a graph about this functions as 2 circle lines.. because
> end position about linear function precede start position..

Sorry, but you'll have to re-phrase that problem description.  As it is, 
it makes no sense whatsoever.  I assume the meaning must have been lost 
in translation.

[Gnuplot-info] gnuplot 4.2, linear function and circular vision

[Biliards <ale...@gm...>]

Hi all,
I have got data about 2 linear function. 
I would like create a graph about this functions as 2 circle lines.. because
end position about linear function precede start position.. is it possible
with gnuplot 4.2?
can you help me about create it?

Thanks,
biliards.
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Re: [Gnuplot-info] strange behavior emf term on gnuplot 4.2.4 1 (This is not a probelm)

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

Hello 

This issue is not a  problem after restarting of  the computer. 

Sorry for my misleading the isssue.

However the problem No. 2 was also found in the case of the computer in my home. 

Regards

Tatsuro 

--- Tatsuro MATSUOKA <tma...@ya...> wrote:

> Hello
> I have tested emf term gnuplot 4.2.4 (win32 djgpp)
> 
> gnuplot> set term emf
> Terminal type set to 'emf'
> Options are 'color dashed "Arial" 12'
> gnuplot> set out  'hoge.emf'
> gnuplot> plot sin(x)
> gnuplot> set out
> gnuplot>
> 
> At home (win xp sp3 home), hoge.emf file was broken (size ca. 1kB).
> However at Unive (win xp3 pro),  hoge.emf file was not broken (size ca. 9kB).
> 
> 
> ???????
> 
> Tonight I will test again at home, by restaring the computer.
> 
> Regards
> 
> Tatsuro
> 
> 
> --------------------------------------
> Enjoy MLB with MAJOR.JP! Ichiro, Matsuzaka, Matsui, and more!
> http://pr.mail.yahoo.co.jp/mlb/
> 
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
> Build the coolest Linux based applications with Moblin SDK & win great prizes
> Grand prize is a trip for two to an Open Source event anywhere in the world
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> _______________________________________________
> Gnuplot-info mailing list
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Re: [Gnuplot-info] strange behavior emf term on gnuplot 4.2.4 No. 2 (Seems not a bug but .....?)

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

Hello

Hmmm
This seem to be emf format being imcompatible to windows viewer or Microsoft office.
In Open Office 2.4, the  enhanced text xlabel 'Time (10^6 {/Symbol m}s)' was represented 
as expected.

However windows viewer on XP or Powerpoint 2003  
enhanced text xlabel 'Time (10^6 {/Symbol m}s was not seen.

However, once the pasted figure was devided by the operation in Powerpoint,  'Time (10^6 {/Symbol
m}s)' was represented as expected.

???????

Regards

Tatsuro




gnuplot> set term emf enhanced
Terminal type set to 'emf'
Options are 'color dashed "Arial" 12'
gnuplot> set out 'hoge.emf'
gnuplot>  set xlabel 'Time (10^6 {/Symbol m}s)'
gnuplot> plot sin(x)
gnuplot> set out
--- Tatsuro MATSUOKA <tma...@ya...> wrote:

> Hello
> 
> I also confirmed gnuplot 4.2.4 on cygwin .
> I have looked around term.c and emf.trm.
> However, limitation of my ablity allow to find where the problem is.
> 
> Regards
> 
> Tatsuro  
> 
> --- Tatsuro MATSUOKA <tma...@ya...> wrote:
> 
> > 
> > Hello
> > I have tested emf term gnuplot 4.2.4 (win32 djgpp)
> > New features, changes and fixes in gnuplot version 4.2.4
> > ===========================================================
> > * NEW add support for enhanced text mode in the emf terminal driver
> >  
> > gnuplot> set term svg enh
> > Terminal type set to 'svg'
> > Options are 'size 600 480 fixed enhanced fname 'Arial'  fsize 12 butt '
> > gnuplot> set xlabel 'Time (10^6 {/Symbol m}s)'
> > gnuplot> set title '{/Symbol=18 \362@_{/=9.6 0}^{/=12 x}} \
> > > {/Helvetica e^{-{/Symbol m}^2/2} d}{/Symbol m}'
> > gnuplot> set out 'hoge.svg'
> > gnuplot> plot sin(x)
> > gnuplot> set out
> > gnuplot> set term emf enh
> > Terminal type set to 'emf'
> > Options are 'color dashed "Arial" 12'
> > gnuplot> set out 'hoge.emf'
> > gnuplot>  set xlabel 'Time (10^6 {/Symbol m}s)'
> > gnuplot> plot sin(x)
> > gnuplot> set out
> > 
> > 'svg term enh' worked but &emf term enh' did not work.
> > Options are 'size 600 480 fixed enhanced fname 'Arial'  fsize 12 butt '(svg)
> > Options are 'color dashed "Arial" 12' (emf)
> > 
> > There was no word 'enhanced' in 'Options ......'.
> > 
> > Is this a bug?
> > 
> > Regards
> > 
> > Tatsuro
> > 
> > 
> > --------------------------------------
> > Enjoy MLB with MAJOR.JP! Ichiro, Matsuzaka, Matsui, and more!
> > http://pr.mail.yahoo.co.jp/mlb/
> > 
> > -------------------------------------------------------------------------
> > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
> > Build the coolest Linux based applications with Moblin SDK & win great prizes
> > Grand prize is a trip for two to an Open Source event anywhere in the world
> > http://moblin-contest.org/redirect.php?banner_id=100&url=/
> > _______________________________________________
> > Gnuplot-info mailing list
> > Gnu...@li...
> > https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> > 
> 
> 
> --------------------------------------
> Enjoy MLB with MAJOR.JP! Ichiro, Matsuzaka, Matsui, and more!
> http://pr.mail.yahoo.co.jp/mlb/
> 


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Re: [Gnuplot-info] strange behavior emf term on gnuplot 4.2.4 No. 2 (bug?)

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

Hello

I also confirmed gnuplot 4.2.4 on cygwin .
I have looked around term.c and emf.trm.
However, limitation of my ablity allow to find where the problem is.

Regards

Tatsuro  

--- Tatsuro MATSUOKA <tma...@ya...> wrote:

> 
> Hello
> I have tested emf term gnuplot 4.2.4 (win32 djgpp)
> New features, changes and fixes in gnuplot version 4.2.4
> ===========================================================
> * NEW add support for enhanced text mode in the emf terminal driver
>  
> gnuplot> set term svg enh
> Terminal type set to 'svg'
> Options are 'size 600 480 fixed enhanced fname 'Arial'  fsize 12 butt '
> gnuplot> set xlabel 'Time (10^6 {/Symbol m}s)'
> gnuplot> set title '{/Symbol=18 \362@_{/=9.6 0}^{/=12 x}} \
> > {/Helvetica e^{-{/Symbol m}^2/2} d}{/Symbol m}'
> gnuplot> set out 'hoge.svg'
> gnuplot> plot sin(x)
> gnuplot> set out
> gnuplot> set term emf enh
> Terminal type set to 'emf'
> Options are 'color dashed "Arial" 12'
> gnuplot> set out 'hoge.emf'
> gnuplot>  set xlabel 'Time (10^6 {/Symbol m}s)'
> gnuplot> plot sin(x)
> gnuplot> set out
> 
> 'svg term enh' worked but &emf term enh' did not work.
> Options are 'size 600 480 fixed enhanced fname 'Arial'  fsize 12 butt '(svg)
> Options are 'color dashed "Arial" 12' (emf)
> 
> There was no word 'enhanced' in 'Options ......'.
> 
> Is this a bug?
> 
> Regards
> 
> Tatsuro
> 
> 
> --------------------------------------
> Enjoy MLB with MAJOR.JP! Ichiro, Matsuzaka, Matsui, and more!
> http://pr.mail.yahoo.co.jp/mlb/
> 
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
> Build the coolest Linux based applications with Moblin SDK & win great prizes
> Grand prize is a trip for two to an Open Source event anywhere in the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
> _______________________________________________
> Gnuplot-info mailing list
> Gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> 


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[Gnuplot-info] strange behavior emf term on gnuplot 4.2.4 No. 2

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

Hello
I have tested emf term gnuplot 4.2.4 (win32 djgpp)
New features, changes and fixes in gnuplot version 4.2.4
===========================================================
* NEW add support for enhanced text mode in the emf terminal driver
 
gnuplot> set term svg enh
Terminal type set to 'svg'
Options are 'size 600 480 fixed enhanced fname 'Arial'  fsize 12 butt '
gnuplot> set xlabel 'Time (10^6 {/Symbol m}s)'
gnuplot> set title '{/Symbol=18 \362@_{/=9.6 0}^{/=12 x}} \
> {/Helvetica e^{-{/Symbol m}^2/2} d}{/Symbol m}'
gnuplot> set out 'hoge.svg'
gnuplot> plot sin(x)
gnuplot> set out
gnuplot> set term emf enh
Terminal type set to 'emf'
Options are 'color dashed "Arial" 12'
gnuplot> set out 'hoge.emf'
gnuplot>  set xlabel 'Time (10^6 {/Symbol m}s)'
gnuplot> plot sin(x)
gnuplot> set out

'svg term enh' worked but &emf term enh' did not work.
Options are 'size 600 480 fixed enhanced fname 'Arial'  fsize 12 butt '(svg)
Options are 'color dashed "Arial" 12' (emf)

There was no word 'enhanced' in 'Options ......'.

Is this a bug?

Regards

Tatsuro


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[Gnuplot-info] strange behavior emf term on gnuplot 4.2.4 1

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

Hello
I have tested emf term gnuplot 4.2.4 (win32 djgpp)

gnuplot> set term emf
Terminal type set to 'emf'
Options are 'color dashed "Arial" 12'
gnuplot> set out  'hoge.emf'
gnuplot> plot sin(x)
gnuplot> set out
gnuplot>

At home (win xp sp3 home), hoge.emf file was broken (size ca. 1kB).
However at Unive (win xp3 pro),  hoge.emf file was not broken (size ca. 9kB).


???????

Tonight I will test again at home, by restaring the computer.

Regards

Tatsuro


--------------------------------------
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[Gnuplot-info] gnuplot 4.3 cvs (2008-10-02) on cygwin : uploaded

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

Hello 

I have updated gnuplot 4.3 cvs (2008-10-02) on cygwin.

http://www.tatsuromatsuoka.com/gnuplot/Eng/cygbin/

Regards

Tatsuro

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[Gnuplot-info] Fwd: Naming of cosole mode gnuplot for windows ( again )

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

This is a forwarded mail.

--- Tatsuro MATSUOKA <tma...@ya...> wrote:

> Date:Fri, 3 Oct 2008 18:15:45 +0900 (JST)
> From:Tatsuro MATSUOKA <tma...@ya...>
> Subject:Naming of cosole mode gnuplot for windows ( again )
> To:gnu...@li...
> CC:mat...@nu..., mic...@gm..., lin...@gm...,
> mi...@ph..., HBB...@t-..., merritt@u.washington.edu, jw...@be...,
> hi...@gm..., Dav...@mo..., so...@ha...
> 
> Hello 
> 
> I have voted this issue once
> http://article.gmane.org/gmane.comp.graphics.gnuplot.devel/7524/match=console+gnuplot+windows
> 
> However, we did not have the conlusion at that moment.
> 
> Benjamin Lindar, who is a maintainer octave on mingw32, uploaded octave on mingw32 on Oct. 1.
> He bundled cvs version console mode of gnuplot for windows as pgnuplot.
> 
> Here I proposed again that cosole mode gnuplot for windows is to be called as 'gnuplot' not
> 'pgnuplot'.
> 
> I know other programs are using pgnuplot+wgnuplot on windows. For example, Maxima.  However, for
> octave, pgnuplot+wgnuplot ordinally distributed does work at all now. Console mode gnuplot for
> windows
> and gnuplot on cygwin are able to be used for octave for windows. I think that platform is not a
> problem.  What program the host software uses is a problem.  In this sence, octave no longer is
> able
> to use pgnuplot+wgnuplot on windows.  
> 
> Therefore, in my idea, console mode gnuplot for windows should be rename as a gnuplot not a
> pgnuplot. 
> This makes things clear.  Octave will not be required to distinguish gnuplot or pgnuplot on
> platform
> problem windows ot unix (inculding cygwin).
> 
> Regards
> 
> Tatsuro
> 
> 
> --------------------------------------
> Enjoy MLB with MAJOR.JP! Ichiro, Matsuzaka, Matsui, and more!
> http://pr.mail.yahoo.co.jp/mlb/
> 


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Re: [Gnuplot-info] stop popping up plots from command line

[Florian K. <flo...@tu...>]

Hi!

With popping up I mean the plot appearing on the screen and then
immediately  to be closed --> so you can see  the plots  flashing  on
the screen - I tried
        g.plot(d)
        g.hardcopy(place_2_save_4_feat)   

with ps it seems to work better - but it still fails sometimes -  what
can I chose for other output formats which may increase my performance?

Thanks!

Florian



I Wayan Warmada wrote:
> Do you mean your plot is displayed in the screen?
> If so, you may change the terminal, i.e., png or other
> graphic formats. I prefer to use postscript or pdf
> terminal. PNG or other bitmapped graphics are to bad
> for producing a reports.
>
> You just put a simple command, i.e.,
>
> set terminal postscript
> set output "name_of_output.ps"
>
> plot ....
>
> Gruess,
> Wayan
>
> --- Florian Koelling <flo...@tu...>
> wrote:
>
>   
>> Hans-Bernhard Bröker wrote:
>>     
>>> Florian Koelling wrote:
>>>
>>>       
>>>> Is there any possibility to avoid the plot-open
>>>>         
>> plot-close plot
>>     
>>>> procedure? I only would like to save my Data to
>>>>         
>> Disk without having any
>>     
>>>> popup.
>>>>         
>>> Then you'll have to check the documentation of
>>>       
>> gnuplot.py about
>>     
>>> interactive vs. direct-to-file outputs.  Suffice
>>>       
>> it to say that
>>     
>>> "hardcopy" probably shouldn't be a command you
>>>       
>> use:
>>     
>>>>         g.plot(d)
>>>>         g.hardcopy(place_2_save_4_feat,
>>>>         
>> terminal='png')   
>>     
>>> This plots the data to the screen first, then
>>>       
>> outputs it to a file.
>>     
>>> That's not what you want, so don't do that.
>>>       
>> Hi I haven't found a documentation touching this
>> topic and I have to use
>> the "plot" command. Without doing so I only receive
>> empty Documents.
>>
>> Tanks!
>>
>>
>>
>>
>>     
> -------------------------------------------------------------------------
>   
>> This SF.Net email is sponsored by the Moblin Your
>> Move Developer's challenge
>> Build the coolest Linux based applications with
>> Moblin SDK & win great prizes
>> Grand prize is a trip for two to an Open Source
>> event anywhere in the world
>>
>>     
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Re: [Gnuplot-info] stop popping up plots from command line

[I W. W. <wa...@ya...>]

Do you mean your plot is displayed in the screen?
If so, you may change the terminal, i.e., png or other
graphic formats. I prefer to use postscript or pdf
terminal. PNG or other bitmapped graphics are to bad
for producing a reports.

You just put a simple command, i.e.,

set terminal postscript
set output "name_of_output.ps"

plot ....

Gruess,
Wayan

--- Florian Koelling <flo...@tu...>
wrote:

> Hans-Bernhard Bröker wrote:
> > Florian Koelling wrote:
> >
> >> Is there any possibility to avoid the plot-open
> plot-close plot
> >> procedure? I only would like to save my Data to
> Disk without having any
> >> popup.
> >
> > Then you'll have to check the documentation of
> gnuplot.py about
> > interactive vs. direct-to-file outputs.  Suffice
> it to say that
> > "hardcopy" probably shouldn't be a command you
> use:
> >
> >>         g.plot(d)
> >>         g.hardcopy(place_2_save_4_feat,
> terminal='png')   
> >
> > This plots the data to the screen first, then
> outputs it to a file.
> > That's not what you want, so don't do that.
> 
> Hi I haven't found a documentation touching this
> topic and I have to use
> the "plot" command. Without doing so I only receive
> empty Documents.
> 
> Tanks!
> 
> 
> 
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Re: [Gnuplot-info] stop popping up plots from command line

[Florian K. <flo...@tu...>]

Hans-Bernhard Bröker wrote:
> Florian Koelling wrote:
>
>> Is there any possibility to avoid the plot-open plot-close plot
>> procedure? I only would like to save my Data to Disk without having any
>> popup.
>
> Then you'll have to check the documentation of gnuplot.py about
> interactive vs. direct-to-file outputs.  Suffice it to say that
> "hardcopy" probably shouldn't be a command you use:
>
>>         g.plot(d)
>>         g.hardcopy(place_2_save_4_feat, terminal='png')   
>
> This plots the data to the screen first, then outputs it to a file.
> That's not what you want, so don't do that.

Hi I haven't found a documentation touching this topic and I have to use
the "plot" command. Without doing so I only receive empty Documents.

Tanks!

Re: [Gnuplot-info] stop popping up plots from command line

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

Florian Koelling wrote:

> Is there any possibility to avoid the plot-open plot-close plot
> procedure? I only would like to save my Data to Disk without having any
> popup.

Then you'll have to check the documentation of gnuplot.py about 
interactive vs. direct-to-file outputs.  Suffice it to say that 
"hardcopy" probably shouldn't be a command you use:

>         g.plot(d)
>         g.hardcopy(place_2_save_4_feat, terminal='png')   

This plots the data to the screen first, then outputs it to a file. 
That's not what you want, so don't do that.

[Gnuplot-info] stop popping up plots from command line

[Florian K. <flo...@tu...>]

Hi folks!

I'm interfacing gnuplot through a python program : I' m Calculating
distances and plot them via Gnuplot --- for a great Data amount .

While plotting the Data, Gnuplot suddenly interrupts plotting (and
executing  my program) -- with an open shell or a left plot on the
screen -- although I close every plot after plotting.

Is there any possibility to avoid the plot-open plot-close plot
procedure? I only would like to save my Data to Disk without having any
popup.

my code:


max_y = 1.0        #Energy between 0 and 100 %
    min_y = 0.0
    counter = 0
    for feat_list in clustered_feat_spots:
       
        ### Settings 4 one probe cluster
        name_for_saving =
output_name+str(counter)+"_for_every_probe"+".png"   
        place_2_save_4_feat =
path_2_write_curves_4_every_feat+name_for_saving
        #### Range 4 plot
        counter = counter +1
       
        nr_spots= len(feat_list)
        min_x = 0
        max_x = (nr_spots)+1   ##adding 2 because i for i does not count
last one!
       
        x_string = 'set xrange'+'['+str(min_x)+':'+str(max_x)+']'
        y_string = 'set yrange'+'['+str(min_y)+':'+str(max_y)+']'
       
        ###Data 4 plotting
        x_val_pre =[i for i in range (max_x)]
        x_val      = x_val_pre[1:]   
        y_val     = feat_list

        ###Plot Details
        g = Gnuplot.Gnuplot(persist=1)
        g.title(name_for_saving)
       
        g('set data style linespoints')
        g('set pointsize 2')
        g('set grid')
        g.xlabel("spots in tolerance radius")   
        g.ylabel("rel. Energy")   
        g(x_string)
        g(y_string)
        ##d = Gnuplot.Data(x,y,title='squared', with='lp lt 1 pt 7')
Example for different colors!
        d = Gnuplot.Data(x_val,y_val, with=color_plot)
        g.plot(d)
        g.hardcopy(place_2_save_4_feat, terminal='png')   
   
        g.reset()


Thanks alot!

Florian

 

Re: [Gnuplot-info] Fitting to weighed data points

[Sanaloht <san...@gm...>]

Damn, that is a nice reply! You're the smartest person I ever met!

Actually, the 50 tries and 30 fails are not directly represented in the
data. Only the processed pair of two values below 1 indicating percentages.
They are the datapoints to which I fit the formula.
I can get a third value. It can either be the number of tries or "number of
tries/ maximum number of tries". That is, I think, a weight.

The GnuPlot help says: " The third item (a column number or an expression),
if present, is interpreted as the standard deviation of the corresponding y
value and is used to compute a weight for the datum, 1/s**2."

I want to let GnuPlot do the weighing for me!!!! But how? 
I don't have a standard deviation of the y value, so how can I let it be
computed?
My values are totally correct, no deviation!
In which way do I have to supply the standard deviation, or, before you
flame me again for this question: How do I have to process my third value to
get a standard deviation which I can then use to compute a weight?

Well, I guess you don't answer me on this post but maybe someone else has a
answer!

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[Gnuplot-info] Disable shell

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

Hi,

I want to use gnuplot from a php/perl-Script and want to feed user input 
to gnuplot. My question: How can I disable shell access? I worry about 
unser input to gnuplot that looks like:

plot "< rm -rf /"

TIA, Micha

Re: [Gnuplot-info] Fitting to weighed data points

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

Sanaloht wrote:
> I got a problem and it is not solvable by the fit weight as explained in the
> help.

You got that wrong.

> I got a bunch of data points, which each represents a series of tries:
> 
> 50 tries with 30 fails is represented by 0.6 (60%) the other parameter of
> the point is a sort of percentile but doesn't really matter.

What exactly does "is represented by" mean here?  Are the actual 
numbers, 50 and 30, present in the data visible by gnuplot, or not?

> What I'd like to have is, that, while the least square process, the residue
> of every data point is weighed by the amount of tries it represents.

Which is *exactly* what the z_error column would do for you, if only you 
let it.

> (The weigh explained in the gnuplot help for "fit" just alters the y axis
> value, I don't think that solves my problem.)

You misunderstand the documentation, leading to incorrect conclusions. 
No, the weight doesn't just modify the y axis values.

What you need to do is crack open your statistics textbook and learn 
about counting statistics and their intrinsic error, so you can 
understand why the solution to your problem is something like

	fit f(x) 'data.data' using 1:2:(sqrt($2)) via ...

[Gnuplot-info] Fitting to weighed data points

[Sanaloht <san...@gm...>]

Hi there!

I got a problem and it is not solvable by the fit weight as explained in the
help.
Second, I'm german, that might lead to funny use of expressions. Be creative
in interpreting or ask me. ;)

I got a bunch of data points, which each represents a series of tries:

50 tries with 30 fails is represented by 0.6 (60%) the other parameter of
the point is a sort of percentile but doesn't really matter.

My problem is that not every data point represents the same amount of tries.
Maybe 50 tries lead to one data point and the other data point represents
100 tries.

What I'd like to have is, that, while the least square process, the residue
of every data point is weighed by the amount of tries it represents.

Don't know if GnuPlot can do something like that, but I'm thankful for every
help!

(The weigh explained in the gnuplot help for "fit" just alters the y axis
value, I don't think that solves my problem.)

Another way to solve my problem could be that I make one data point for
every try:
I got 50 tries which lead to one data pint with x axis value of 0.6 and y of
0.4, so I make 50 data points with x/y pairs of 0.6/0.4 
I did that for every data point but that led to very tiny error values. That
is not what I expected.
The multiplying of the same data point doesn't lead to more equations to
solve the equation. So why is that fit more accurate?

So long,

Florida Tom

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