gnuplot-info — For questions and discussion about gnuplot

Re: [Gnuplot-info] Invoking gnuplot from web browser...

[Richard H. <r.h...@rl...>]

Hans-Bernhard Bröker wrote:

> Nalin Gupta wrote:
> 
>> I wish to learn, is it possible that web server streams some data (X,Y)
>> and web browser invoke gnuplot to display this dynamic data
> 
> No.  There are very serious security implications that forbid this kind
> of setup.
> 
> Running programs in or from your web browser requires completely
> different techniques than those used by desktop applications (like
> gnuplot).  For that kind of job you need Java.
> 

Hi Nalin and Hans-Bernhard,

The short answer, as Hans has stated is: NO.
The slightly longer answer is: why would you want to do this? there maybe a
better way to complete your goal - serverside gnuplot image generation?

The longer answer is: Maybe,

First, you could configure your webserver to send a customised mime type
when your stream is selected by your browser. You could then configure your
browser to delegate activity to another application (gnuplot) when it
encounters this type.

Secondly, there exist scrips which will allow the gnuplot to print from
STDIN. You may be able to connect STDIN to the web stream.

By achieving these two tasks, you may be able to get the behaviour you have
loosely specified.

cheers,
r,

[Gnuplot-info] epslatex: color and gplbacktext

[Richard H. <r.h...@rl...>]

Hi Folks,

I'm having a niggling little problem with epslatex term with gnuplot 4.1
patch 0 september 2006.


When I fail to include:
\usepackage{color}

in the preamble of the tex file which contains
\input{output_from_epslatex_term}

where output_from_epslatex_term.tex is generated using:
gnuplot> set term epslatex color solid blackline

I get the following complaint from Latex:

-------- latex complaint --------
! Package color not loaded in conjunction with terminal option `colourtext'.

See the gnuplot documentation for explanation.
Type  H <return>  for immediate help.
 ...

l.114     \gplbacktext
---------------------------------



when I do include:
\usepackage{color}
I get this complaint:
-------- latex complaint --------
! Too many }'s.
\color@endbox ->\color@endgroup \egroup

l.14 \end{figure}
---------------------------------



I get the feeling I'm missing something pretty simple in either Latex or
gnuplot. 

Any comments or advice are most welcome!

cheers,
Richard

Re: [Gnuplot-info] Invoking gnuplot from web browser...

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

Nalin Gupta wrote:

> I wish to learn, is it possible that web server streams some data (X,Y)
> and web browser invoke gnuplot to display this dynamic data

No.  There are very serious security implications that forbid this kind 
of setup.

Running programs in or from your web browser requires completely 
different techniques than those used by desktop applications (like 
gnuplot).  For that kind of job you need Java.

[Gnuplot-info] i want subscribeme

[<dav...@gm...>]

--=20
Sergio.David.S=E0nchez.M.
dav...@gm...
http://davedicius.googlepages.com/

[Gnuplot-info] Invoking gnuplot from web browser...

[Nalin G. <nal...@ya...>]

Hello,
 
 I am using gnuplot for first time.
 
 My requirement is to display a Dynamic graph displaying monitored Traffic throughput or CPU Performance for example.
 
 I wish to learn, is it possible that web server streams some data (X,Y)
 and web browser invoke gnuplot to display this dynamic data 
 either in new xtern/window/or portion of same html page.
 
 I came across this site:
  http://skuld.bmsc.washington.edu/~merritt/gnuplot_test.html
 
 Is there more similar documents ? I have few doubts and could not get result
  as per this site.
 
 Is this feature available in current release ?
 
 regards,
 - nalin
 
 				
---------------------------------
 Find out what India is talking about on  - Yahoo! Answers India 
 Send FREE SMS to your friend's mobile from Yahoo! Messenger Version 8. Get it NOW

[Gnuplot-info] Attention, this one grows fast

[allay <des...@ro...>]

H o t sto ck allert - This one is still climbing the sotck charts allert --  Breaking mraket n e w s report --- VGY I. P K

Companyy naame: Visoin Enregy Gruop Inc. 
Lookup: VGY I. P K
Current Priice: $.75
Expected: steadily climb for the top

Breaking N e w s:  

Announcement by V ision Ene rgy Grou p: Negotiations Completed on Low BTU Gas Property in Central Valley, CA

Los Angeles --(Bus iness wi re)--Aug. 31, 2006--Pursuant to an agreement of July 2005 between Vis ion Ene rgy Grou p (Pink Sheets: VG YI) and Valley Production Inc., the seasoned Oil & Gas Production Group from Bakersfield, CA, Vis ion Ene rgy Grou p has concluded negotiations to jointly process low quality natural gas from two existing wells. A recent third party analysis of these wells gave a remaining reserve in the three production zones of almost 4 billion cubic feet of gas. This will give the project a production life of 10 years at the modest production rate of one million cubic feet per day. Further reserves of gas are anticipated in the surrounding leases after a geophysics and drilling program have been completed.

The gas, which will be upgraded using Visioon Energgy GGroup's proprietary technology and know-how, will be sol d as premium grade gas into the statewide pipeline grid. The estimated capital c ost of the project is $2.0 million and will be targeted to be in production within seven months.

Valley Production has among its principals and technical staff such notables of the industry as Jeff Smith and Ed LeLousis of Bakersfield, Calif. This production-oriented team will steer Vis ion En ergy G roup, Inc. into the selection of other suitable projects in the San Joaquin Valley, manage and operate the properties and share in the ca sh benef its on a structured incentive plan.
Visi on Ene rgy Grou p, Inc. will benefiit from owning such projects directly or indirectly and by employing their proprietary technology to either liquefy or clean up stranded and/or flared gas from properties that can be acquired at cos ts below the normal mark et p rice. Viision EEnergy Grroup, Inc. is aware that significant reserves of low BTU gas exist in the San Joaquin Valley that can be processed into high quality gas by their systems and readily sold into the pipeline grid.

About Vision Energy Corp.

V ision Ener gy Corp. offers an efficient, patented technology to generate electricity at substantial savings by using the wasted energy dissipated when high pressure gas pipelines are let down in pressure for local consumption. Up to 70% of electricity generated when using this system is produced without combustion of any fossil fuel and therefore no harmful atmospheric emissions. Thermal efficiency can exceed 100% by taking advantage of both let down energy and primary turbine waste heat (exhaust ).

Watch this sto ck go higher and higer

Any of the above statements with respect to the future predications or 
goals and events may be seen as only Forward Looking and nothing else. 
All information inside this email pertaining to any sort of finacnial 
advice need to be understood as information and not advice. None of the 
information above can be constructed as any sort of finaancial advice. This is a paid advert isement.

[Gnuplot-info] FW: How to display colorbox (legend) with gray scale?

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

Correction: my CVS is from Sept. 17.
------ Forwarded Message
I have been using gnuplot-4.0 and gnuplot-4.1 to display gray-scale data
with pm3d for over a year. My latest build of gnuplot-4.1 (CVS Sept. 19)
refuses to display the colorbar/colorbox for the plot to the right of the
data frame, although earlier gnuplot versions still display it correctly. I
checked the online help, and added set colorbox to the script without
success. This is on my Mac G5 under OS X 10.4.7 with AquaTerm-1.0.1.

The idea is to display data curves where low amplitude data fades into
white, and high amplitude data is black. Here is the script:

set terminal aqua 1 fname "ArialMT" fsize 18
set palette gray negative
set view map
set mytics 10
set logscale y
set yrange [10:100000]
set colorbox vertical default
set title 'Frequency Response vs. Time'
set xlabel 'Time, s'
set ylabel 'Frequency, Hz'
set label 'Amplitude, g' at screen 0.97,0.45 rotate by 90
set nokey
splot 'spectrum.txt' with points palette pt 3 ps 0.3
set terminal postscript
set output "spectrum.eps"
replot

As I mentioned, I just now added the set colorbox line. The file
spectrum.txt contains several lines of data that still display correctly
within the plot frame, with the correct gray-scale values shown.

How do I turn on the colorbar/colorbox for gray scale. My color pm3d tests
seem to be working correctly with the colorbar correctly displayed.

Thanks for any ideas.

Joe


------ End of Forwarded Message

[Gnuplot-info] How to display colorbox (legend) with gray scale?

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

I have been using gnuplot-4.0 and gnuplot-4.1 to display gray-scale data
with pm3d for over a year. My latest build of gnuplot-4.1 (CVS Sept. 19)
refuses to display the colorbar/colorbox for the plot to the right of the
data frame, although earlier gnuplot versions still display it correctly. I
checked the online help, and added set colorbox to the script without
success. This is on my Mac G5 under OS X 10.4.7 with AquaTerm-1.0.1.

The idea is to display data curves where low amplitude data fades into
white, and high amplitude data is black. Here is the script:

set terminal aqua 1 fname "ArialMT" fsize 18
set palette gray negative
set view map
set mytics 10
set logscale y
set yrange [10:100000]
set colorbox vertical default
set title 'Frequency Response vs. Time'
set xlabel 'Time, s'
set ylabel 'Frequency, Hz'
set label 'Amplitude, g' at screen 0.97,0.45 rotate by 90
set nokey
splot 'spectrum.txt' with points palette pt 3 ps 0.3
set terminal postscript
set output "spectrum.eps"
replot

As I mentioned, I just now added the set colorbox line. The file
spectrum.txt contains several lines of data that still display correctly
within the plot frame, with the correct gray-scale values shown.

How do I turn on the colorbar/colorbox for gray scale. My color pm3d tests
seem to be working correctly with the colorbar correctly displayed.

Thanks for any ideas.

Joe

Re: [Gnuplot-info] CVS Build of gnuplot-4.1 with OS X 10.4.7

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

on 9/17/06 10:08 PM, Hans-Bernhard Br=F6ker at br...@ph...
wrote:

> Joe Koski wrote:
>> developer tools. This is the current Mac OS as far as I know. This inclu=
des
>> automake-1.6.3.
>=20
> That's your problem right there.  That automake is 3 years old --- too
> old for gnuplot.  You have to upgrade.
>=20
> I'll modify our configure.in to complain about outdated automake.
>=20
Hans-Bernard,

Thanks, getting automake-1.9.6 solved the problem. I had suspected that was
the cause. At least Apple now has autoconf-2.59 as their current version in
Xcode-2.4. autoconf was out of date last March when I built gnuplot-4.1
before.

Joe

Re: [Gnuplot-info] =?iso-8859-15?q?Fiting_and_R=B2?=

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

SB wrote:

> After half a day on the web I learned a little about statistics, bu=
t I
> couldn't find out how to interpret the correlation matrix. Also I a=
m
> still without ideas how to transform it to receive R=B2.=20

Well, to cut a long story short: R^2 is the square of the off-diagona=
l=20
element of the correlation matrix --- *iff* the fit is a simple linea=
r=20
regression: y =3D a*x + b

> For some reason the bottom left value (in this case -0.684) seems t=
o
> depend only on the number of points that are fitted.=20

Then I must assume you didn't try sufficiently diverse data sets.
The correlation should only depend on the number of data points if yo=
u=20
varied the data set size by restricting the x or y range of a linearl=
y=20
ordered data set.

Re: [Gnuplot-info] =?iso-8859-1?q?Fiting_and_R=B2?=

[Thomas P. <jun...@gm...>]

Hi,
even if this is NOT a math-forum ....
If you have questions about statistics, wolfram's mathworld is always a go=
od start:

http://mathworld.wolfram.com/CorrelationCoefficient.html

If that's too strange, well I would suggest grab some statistics books and=
 study through. 
Correlation matrix and R-square is certainly in the first quarter ...
If you use them you should understand there meaning.

Cheers
Pelusa

On 18 Sep 2006 at 19:54, SB wrote:

> Hello again,
> Sorry, I have to ask the same question again. 
> 
> After half a day on the web I learned a little about statistics, but I
> couldn't find out how to interpret the correlation matrix. Also I am
> still without ideas how to transform it to receive R=B2. 
> 
> Is there an easy explanation available for someone without prior
> statistical knoledge how to do this?
> 
> And one more question:
> My correlation Matrix looks like this:
> 
>                a      b
> a               1.000
> b              -0.684  1.000
> 
> I did several fits to different data, and almost all fits to a line
> (i.e. g(x) =3D a* x + b ; fit g(x) ... via a,b).
> For some reason the bottom left value (in this case -0.684) seems to
> depend only on the number of points that are fitted. 
> 
> Confused,
> 
> Stephan
> 
> end part of one fitting log (g(x) fitted to 6 data points):
> 
> 
> 
> Iteration 5
> WSSR        : 16.6406           delta(WSSR)/WSSR   : -5.61239e-12
> delta(WSSR) : -9.33937e-11      limit for stopping : 1e-05
> lambda    : 0.000319372
> 
> resultant parameter values
> 
> a               =3D 0.451348
> b               =3D 1.72651
> 
> After 5 iterations the fit converged.
> final sum of squares of residuals : 16.6406
> rel. change during last iteration : -5.61239e-12
> 
> degrees of freedom (ndf) : 4
> rms of residuals      (stdfit) =3D sqrt(WSSR/ndf)      : 2.03965
> variance of residuals (reduced chisquare) =3D WSSR/ndf : 4.16016
> 
> Final set of parameters            Asymptotic Standard Error
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D   =
         =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D
> 
> a               =3D 0.451348         +/- 0.02527      (5.599%)
> b               =3D 1.72651          +/- 1.141        (66.09%)
> 
> 
> correlation matrix of the fit parameters:
> 
>                a      b
> a               1.000
> b              -0.684  1.000
> 
> 
> ----------------------------------
> G N U P L O T
>         Version 4.0 patchlevel 0
>         last modified Thu Apr 15 14:44:22 CEST 2004
>         System: Linux 2.6.12-10-386
> 
>         Copyright (C) 1986 - 1993, 1998, 2004
>         Thomas Williams, Colin Kelley and many others
> 
> 
> 
> 
> 
> ------------------------------------------------------------------------=
-
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share =
your
> opinions on IT & business topics through brief surveys -- and earn cash
> http://www.techsay.com/default.php?page=3Djoin.php&p=3Dsourceforge&CID=3D=
DEVDEV
> _______________________________________________
> Gnuplot-info mailing list
> Gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> 

Re: [Gnuplot-info] =?iso-8859-1?q?Fiting_and_R=B2?=

[SB <ste...@gm...>]

Hello again,
Sorry, I have to ask the same question again. 

After half a day on the web I learned a little about statistics, but I
couldn't find out how to interpret the correlation matrix. Also I am
still without ideas how to transform it to receive R². 

Is there an easy explanation available for someone without prior
statistical knoledge how to do this?

And one more question:
My correlation Matrix looks like this:

               a      b
a               1.000
b              -0.684  1.000

I did several fits to different data, and almost all fits to a line
(i.e. g(x) = a* x + b ; fit g(x) ... via a,b).
For some reason the bottom left value (in this case -0.684) seems to
depend only on the number of points that are fitted. 

Confused,

Stephan

end part of one fitting log (g(x) fitted to 6 data points):



Iteration 5
WSSR        : 16.6406           delta(WSSR)/WSSR   : -5.61239e-12
delta(WSSR) : -9.33937e-11      limit for stopping : 1e-05
lambda    : 0.000319372

resultant parameter values

a               = 0.451348
b               = 1.72651

After 5 iterations the fit converged.
final sum of squares of residuals : 16.6406
rel. change during last iteration : -5.61239e-12

degrees of freedom (ndf) : 4
rms of residuals      (stdfit) = sqrt(WSSR/ndf)      : 2.03965
variance of residuals (reduced chisquare) = WSSR/ndf : 4.16016

Final set of parameters            Asymptotic Standard Error
=======================            ==========================

a               = 0.451348         +/- 0.02527      (5.599%)
b               = 1.72651          +/- 1.141        (66.09%)


correlation matrix of the fit parameters:

               a      b
a               1.000
b              -0.684  1.000


----------------------------------
G N U P L O T
        Version 4.0 patchlevel 0
        last modified Thu Apr 15 14:44:22 CEST 2004
        System: Linux 2.6.12-10-386

        Copyright (C) 1986 - 1993, 1998, 2004
        Thomas Williams, Colin Kelley and many others

Re: [Gnuplot-info] different line colors

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

Lars Hoegen wrote:
> The simplest way would be to define a linetype with your 
> preferred line appearance:

No, that's only the second-simplest.  You don't have to define a 
linestyle(sic!) to get a the same linetype on each data set in a plot.

>    set style line 7 linetype 4 linewidth 2

>    plot sin(x) with lines linetype 7, \
>          cos(x) w l lt 7

Make that

    plot sin(x) with lines linestyle 7, \
          cos(x) w l ls 7

Re: [Gnuplot-info] plot mean data point in scatter plot

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

ar283 wrote:
> Hiya,
> 
> I have a simple scatter plot of (x,y) values from a data file; can someone
> tell me how to plot the mean point?

Just about the only easy way would be something like this:

fit x_mean 'file' u 1 via x_mean
fit y_mean 'file' u 2 via y_mean
set arrow from x_mean, graph 0 to x_mean graph 1 nohead
set arrow from graph 0, first y_mean to graph 1, first y_mean
plot 'file' u 1:2

[Gnuplot-info] plot mean data point in scatter plot

[ar283 <ar...@cl...>]

Hiya,

I have a simple scatter plot of (x,y) values from a data file; can someone
tell me how to plot the mean point?

Thanks,

Anna
-- 
View this message in context: http://www.nabble.com/plot-mean-data-point-in-scatter-plot-tf2291824.html#a6365461
Sent from the Gnuplot - User mailing list archive at Nabble.com.

Re: [Gnuplot-info] different line colors

[Lars H. <la...@ho...>]

Hello!

> In every session i plot several lines in a window. But
> they appear to be in different colors. I want to have
> them all in one simple color. As I couldn't solve this
> problem with Devillard's interface, i want to ask you if
> i can set this up through a gnuplot command?

The simplest way would be to define a linetype with your 
preferred line appearance:

   set style line <number> <specifications>

and then use 'with lines linetype <number>' within every 
plot command resp. every plotted graph. Example

   set style line 7 linetype 4 linewidth 2

creates a linestyle with the number 7, which contains a line 
of the type 4 and the width 2. The type is provided by your 
chosen terminal and determines the colour of the line. Use 
the command 'test' and you will get a plot which lists all 
available colours with their numbers on the right side of 
the window. 

   plot sin(x) with lines linetype 7, \
         cos(x) w l lt 7

will deliver a plot with all lines of the specified type. 
The 'with lines linetype' may be abbreviated in the way 
shown above.

HTH
Lars Hoegen

[Gnuplot-info] different line colors

[Umut E. <j.s...@o2...>]

Hei All,

I am writing a program using gnuplot and Devillard's interface.

In every session i plot several lines in a window. But they appear
to be in different colors. I want to have them all in one simple color.
As I couldn't solve this problem with Devillard's interface, i want to
ask you if i can set this up through a gnuplot command? 

Regards,
Umut Emin

Re: [Gnuplot-info] CVS Build of gnuplot-4.1 with OS X 10.4.7

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

Joe Koski wrote:
> developer tools. This is the current Mac OS as far as I know. This includes
> automake-1.6.3.

That's your problem right there.  That automake is 3 years old --- too 
old for gnuplot.  You have to upgrade.

I'll modify our configure.in to complain about outdated automake.

Re: [Gnuplot-info] gnuplot as subprocess

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

shishir wrote:

> is it posible to make the appearing plot interactive, i.e. I can zoom
> in-out of it?

It already is --- for all of 20 seconds.  Replace the pause 20 by pause 
-1 to make that period as long as you need it.

If your program wants to continue running and send further commands to 
gnuplot later, you can't use the shell to construct the pipe.  popen() 
or pipe() inside the program itself, instead.

Re: [Gnuplot-info] =?iso-8859-15?q?Fiting_and_R=B2?=

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

SB wrote:

> I try to fit linear or exponential functions to some data. The fitt=
ing
> procedure returns some statistics, but not the R=B2.
>=20
> Can I calculate the R=B2 (Bestimmtheitsma=DF) from these values som=
ehow in
> order to be able to compare the quality of my fits?=20

Gnuplot prints out the correlation matrix.  That should be all you ne=
ed.

[Gnuplot-info] CVS Build of gnuplot-4.1 with OS X 10.4.7

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

Hi all,

About six months ago, I successfully built gnuplot-4.1 from CVS on my Mac,
and have been using it with octave and maxima without problems. I would like
to build gnuplot-4.1 again. I'm on a Mac G5 with OS X 10.4.7 and Xcode-2.4
developer tools. This is the current Mac OS as far as I know. This includes
automake-1.6.3.

Now when I try to ./prepare gnuplot, I get

src/Makefile.am:42: warning: automake does not support conditional
definition of gnuplot_SOURCES in gnuplot_SOURCES
src/Makefile.am:42: warning: automake does not support conditional
definition of gnuplot_SOURCES in gnuplot_SOURCES
src/Makefile.am:42: warning: automake does not support conditional
definition of gnuplot_SOURCES in gnuplot_SOURCES
src/Makefile.am:42: warning: automake does not support conditional
definition of gnuplot_SOURCES in gnuplot_SOURCES
Use of uninitialized value in concatenation (.) or string at
/usr/bin/automake line 8449.
: am_gnuplot_OBJECTS was already defined in condition INCLUDE_BINARY_C_TRUE,
which is implied by condition TRUE
  am_gnuplot_OBJECTS (Automake, where = undefined) =
  {
    BUILD_WXWIDGETS_TRUE => alloc$U.$(OBJEXT) axis$U.$(OBJEXT)
breaders$U.$(OBJEXT) bitmap$U.$(OBJEXT) color$U.$(OBJEXT)
command$U.$(OBJEXT) contour$U.$(OBJEXT) datafile$U.$(OBJEXT)
dynarray$U.$(OBJEXT) eval$U.$(OBJEXT) fit$U.$(OBJEXT) gadgets$U.$(OBJEXT)
getcolor$U.$(OBJEXT) graph3d$U.$(OBJEXT) graphics$U.$(OBJEXT)
help$U.$(OBJEXT) hidden3d$U.$(OBJEXT) history$U.$(OBJEXT)
internal$U.$(OBJEXT) interpol$U.$(OBJEXT) matrix$U.$(OBJEXT)
misc$U.$(OBJEXT) mouse$U.$(OBJEXT) parse$U.$(OBJEXT) plot$U.$(OBJEXT)
plot2d$U.$(OBJEXT) plot3d$U.$(OBJEXT) pm3d$U.$(OBJEXT) readline$U.$(OBJEXT)
save$U.$(OBJEXT) scanner$U.$(OBJEXT) set$U.$(OBJEXT) show$U.$(OBJEXT)
specfun$U.$(OBJEXT) standard$U.$(OBJEXT) stdfn$U.$(OBJEXT)
tables$U.$(OBJEXT) term$U.$(OBJEXT) time$U.$(OBJEXT) unset$U.$(OBJEXT)
util$U.$(OBJEXT) util3d$U.$(OBJEXT) variable$U.$(OBJEXT) version$U.$(OBJEXT)
gp_cairo$U.$(OBJEXT) wxt_gui.$(OBJEXT)
    INCLUDE_BINARY_C_TRUE => binary$U.$(OBJEXT) alloc$U.$(OBJEXT)
axis$U.$(OBJEXT) breaders$U.$(OBJEXT) bitmap$U.$(OBJEXT) color$U.$(OBJEXT)
command$U.$(OBJEXT) contour$U.$(OBJEXT) datafile$U.$(OBJEXT)
dynarray$U.$(OBJEXT) eval$U.$(OBJEXT) fit$U.$(OBJEXT) gadgets$U.$(OBJEXT)
getcolor$U.$(OBJEXT) graph3d$U.$(OBJEXT) graphics$U.$(OBJEXT)
help$U.$(OBJEXT) hidden3d$U.$(OBJEXT) history$U.$(OBJEXT)
internal$U.$(OBJEXT) interpol$U.$(OBJEXT) matrix$U.$(OBJEXT)
misc$U.$(OBJEXT) mouse$U.$(OBJEXT) parse$U.$(OBJEXT) plot$U.$(OBJEXT)
plot2d$U.$(OBJEXT) plot3d$U.$(OBJEXT) pm3d$U.$(OBJEXT) readline$U.$(OBJEXT)
save$U.$(OBJEXT) scanner$U.$(OBJEXT) set$U.$(OBJEXT) show$U.$(OBJEXT)
specfun$U.$(OBJEXT) standard$U.$(OBJEXT) stdfn$U.$(OBJEXT)
tables$U.$(OBJEXT) term$U.$(OBJEXT) time$U.$(OBJEXT) unset$U.$(OBJEXT)
util$U.$(OBJEXT) util3d$U.$(OBJEXT) variable$U.$(OBJEXT) version$U.$(OBJEXT)
  }

Some part of the preparation process failed.
Please refer to INSTALL for details.

Can someone please point me in the correct direction? Thanks.

Joe

[Gnuplot-info] gnuplot as subprocess

[shishir <sh...@ct...>]

hi,
I'm generating some data that is fed to gnuplot like this:
--
plot '-' u 1:2 w l
1 2
3 4
5 6
end
pause 20
--
and I use it like this:
main_prog | gnuplot     (here main_prog generates six lines as above.)

is it posible to make the appearing plot interactive, i.e. I can zoom
in-out of it?
(gnuplot -persist will not work)

I may do it via writing some code in C-gnuplot interface, there should
be some easier solution.
Is there some stream identifier which says to gnuplot that what command
have given to you work on them and wait for more.  (in my problem gnuplot
waits to read all the stream and work on that in the end).

thanks.
ps: the discussion on same topic sometime earlier doesn't provide a solution
for this.

[Gnuplot-info] =?iso-8859-1?q?Fiting_and_R=B2?=

[SB <ste...@gm...>]

Hello,

I try to fit linear or exponential functions to some data. The fitting
procedure returns some statistics, but not the R².

Can I calculate the R² (Bestimmtheitsmaß) from these values somehow in
order to be able to compare the quality of my fits? If not, is there
another easy way to do this?

Thank you,

Stepahn

[Gnuplot-info] Online Opportunity

[Scott S. <mai...@fc...>]
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Re: [Gnuplot-info] secondary axis related to primary axis

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

SB wrote:
> is it possible to scale the secondary related to the primary x/y-axis? 

Not directly.  See the open feature request about coupled axes that 
addresses this.

> I want my autoscaled plots to show one scale on the primary y-Axis and a
> related scale (in my case a proportional relation) on the secondary
> y-Axis.

As long as the ratio is proportional, it can be done by re-plotting the 
data to the y2 axis with the modified scale, and turning on 'autoscale 
fix' for both y axes.

> If this is not possible, is it, instead, possible to read the autoscale
> information back to a user-defined variable so I can do the whole thing
> "manually"? Is there maybe another workaround?

This will be possible in the upcoming release 4.2.