cannot plot via gnuplot (4.2.6) from octave 3.2.3 (on Mac OS 10.6)

[Bob Q]

Hello,

I downloaded and installed the octave-3.2.3 dmg on Mac OS X (10.6, intel) along with the gnuplot-4.2.6 dmg in the Extras.

At first, it could not find gnuplot...

> plot(x,y)
[quote]
error: popen2 (child): unable to start process -- No such file or directory
error: called from:
error:   /Applications/Octave 3.2.3.app/Contents/Resources/share/octave/3.2.3/m/plot/__gnuplot_open_stream__.m at line 28, column 44
error:   /Applications/Octave 3.2.3.app/Contents/Resources/share/octave/3.2.3/m/plot/gnuplot_drawnow.m at line 85, column 19
sh: gnuplot: command not found
error: you must have gnuplot installed to display graphics; if you have gnuplot installed in a non-standard location, see the 'gnuplot_binary' function
octave-3.2.3:4> gnuplot_binary("/Applications/Gnuplot")
octave-3.2.3:5> plot(x,y)
sh: /Applications/Gnuplot: No such file or directory
error: you must have gnuplot installed to display graphics; if you have gnuplot installed in a non-standard location, see the 'gnuplot_binary' function
[/quote]

...solving this with a...

> gnuplot_binary("/Applications/Gnuplot.app/Contents/Resources/bin/gnuplot")

...and again plotting gives...
[quote]
error: `unset' undefined near line 4 column 1
warning: broken pipe -- some output may be lost
[/quote]

where it can only be escaped with a ctrl-c.

Is gnuplot 4.2.6 not working with octave 3.2.3?  Is there a way around this?

Your help or advise is greatly appreciated.

Thanks, Bob



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[Tatsuro MATSUOKA-2]

Hello

--- Bob Q wrote:

> Hello,
>
> I downloaded and installed the octave-3.2.3 dmg on Mac OS X (10.6, intel)
> along with the gnuplot-4.2.6 dmg in the Extras.
>
> At first, it could not find gnuplot...
>
> > plot(x,y)
> [quote]
> error: popen2 (child): unable to start process -- No such file or directory
> error: called from:
> error:   /Applications/Octave
> 3.2.3.app/Contents/Resources/share/octave/3.2.3/m/plot/__gnuplot_open_stream__.m
> at line 28, column 44
> error:   /Applications/Octave
> 3.2.3.app/Contents/Resources/share/octave/3.2.3/m/plot/gnuplot_drawnow.m at
> line 85, column 19
> sh: gnuplot: command not found
> error: you must have gnuplot installed to display graphics; if you have
> gnuplot installed in a non-standard location, see the 'gnuplot_binary'
> function
> octave-3.2.3:4> gnuplot_binary("/Applications/Gnuplot")
> octave-3.2.3:5> plot(x,y)
> sh: /Applications/Gnuplot: No such file or directory
> error: you must have gnuplot installed to display graphics; if you have
> gnuplot installed in a non-standard location, see the 'gnuplot_binary'
> function
> [/quote]
>
> ...solving this with a...
>
> > gnuplot_binary("/Applications/Gnuplot.app/Contents/Resources/bin/gnuplot")
>
> ...and again plotting gives...
> [quote]
> error: `unset' undefined near line 4 column 1
> warning: broken pipe -- some output may be lost
> [/quote]
>
> where it can only be escaped with a ctrl-c.
>
> Is gnuplot 4.2.6 not working with octave 3.2.3?  Is there a way around this?
>
> Your help or advise is greatly appreciated.
>
> Thanks, Bob

Hello

I'm not a Mac user so that my statement is to be a mere note.
Gnuplot 4.2.6 is minor changed version from previous one so that in principle there is no reason that
it does not work from octave.

Did you try to describe
gnuplot_binary("/Applications/Gnuplot.app/Contents/Resources/bin/gnuplot")
in .octaverc ?

You can find HOME directory of octave
octave:1> tilde_expand ('~')

If you did not try, please describe
gnuplot_binary("/Applications/Gnuplot.app/Contents/Resources/bin/gnuplot");
in .octaverc in the HOME directory of octave.

If you have already try the above or the above trial will be in failure, perhaps the problem in the
gnuplot 4.2.6 installed.  The installing might be in failure.

At that time, please wait Mac users will help you.

BTW, if you want use mouse zooming in 2D plot, try to use gnuplot 4.3 (CVS).  
At gnuplot 4.2,mouse zooming in 2D plot does not work because octave send plot data via pipe.
For gnuplot 4.3, mouse

Unfortunately binaries of Mac version is not distributed but you can build by yourself by instruction:
http://gnuplot.info/development/index.html

Note that the development tools (gcc, automake, autoconf, m4, etc.) and dependencies (gd and its
related libraries) are required for building.

Good luck!

Tatsuro

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[Ben Abbott]

On Oct 13, 2009, at 12:19 PM, Bob Q wrote:

> Hello,
>
> I downloaded and installed the octave-3.2.3 dmg on Mac OS X (10.6,  
> intel) along with the gnuplot-4.2.6 dmg in the Extras.
>
> At first, it could not find gnuplot...
>
> > plot(x,y)
> [quote]
> error: popen2 (child): unable to start process -- No such file or  
> directory
> error: called from:
> error:   /Applications/Octave 3.2.3.app/Contents/Resources/share/
> octave/3.2.3/m/plot/__gnuplot_open_stream__.m at line 28, column 44
> error:   /Applications/Octave 3.2.3.app/Contents/Resources/share/
> octave/3.2.3/m/plot/gnuplot_drawnow.m at line 85, column 19
> sh: gnuplot: command not found
> error: you must have gnuplot installed to display graphics; if you  
> have gnuplot installed in a non-standard location, see the  
> 'gnuplot_binary' function
> octave-3.2.3:4> gnuplot_binary("/Applications/Gnuplot")
> octave-3.2.3:5> plot(x,y)
> sh: /Applications/Gnuplot: No such file or directory
> error: you must have gnuplot installed to display graphics; if you  
> have gnuplot installed in a non-standard location, see the  
> 'gnuplot_binary' function
> [/quote]
>
> ...solving this with a...
>
> > gnuplot_binary("/Applications/Gnuplot.app/Contents/Resources/bin/
> gnuplot")
>
> ...and again plotting gives...
> [quote]
> error: `unset' undefined near line 4 column 1
> warning: broken pipe -- some output may be lost
> [/quote]
>
> where it can only be escaped with a ctrl-c.
>
> Is gnuplot 4.2.6 not working with octave 3.2.3?  Is there a way  
> around this?
>
> Your help or advise is greatly appreciated.
>
> Thanks, Bob

Bob,

I've had no trouble with gnuplot 4.2.3 or later versions. I'm  
currently running gnuplot's developer's sources.

Please try running gnuplot directly and type "set term". You'll see a  
list of available terminals. For example, I get the list below ....

gnuplot> set term

Available terminal types:
              aqua  Interface to graphics terminal server for Mac OS X
            canvas  HTML Canvas object
               cgm  Computer Graphics Metafile
             corel  EPS format for CorelDRAW
            dpu414  Seiko DPU-414 thermal printer [small medium large]
              dumb  ascii art for anything that prints text
               dxf  dxf-file for AutoCad (default size 120x80)
             eepic  EEPIC -- extended LaTeX picture environment
               emf  Enhanced Metafile format
             emtex  LaTeX picture environment with emTeX specials
          epslatex  LaTeX picture environment using graphicx package
      epson_180dpi  Epson LQ-style 180-dot per inch (24 pin) printers
       epson_60dpi  Epson-style 60-dot per inch printers
       epson_lx800  Epson LX-800, Star NL-10, NX-1000, PROPRINTER ...
               fig  FIG graphics language for XFIG graphics editor
               gif  GIF images using libgd and TrueType fonts
          gnugraph  GNU plot(1) format ["fontname" font_size]
              gpic  GPIC -- Produce graphs in groff using the gpic  
preprocessor
           hp2623A  HP2623A and maybe others
            hp2648  HP2648 and HP2647
            hp500c  HP DeskJet 500c, [75 100 150 300] [rle tiff]
Press return for more:
              hpdj  HP DeskJet 500, [75 100 150 300]
              hpgl  HP7475 and relatives [number of pens] [eject]
            hpljii  HP Laserjet series II, [75 100 150 300]
              hppj  HP PaintJet and HP3630 [FNT5X9 FNT9X17 FNT13X25]
            imagen  Imagen laser printer
              jpeg  JPEG images using libgd and TrueType fonts
             latex  LaTeX picture environment
               lua  Lua generic terminal driver
                mf  Metafont plotting standard
               mif  Frame maker MIF 3.00 format
                mp  MetaPost plotting standard
           nec_cp6  NEC printer CP6, Epson LQ-800 [monocrome color  
draft]
           okidata  OKIDATA 320/321 Standard
               pbm  Portable bitmap [small medium large] [monochrome  
gray color]
              pcl5  HP Designjet 750C, HP Laserjet III/IV, etc. (many  
options)
               pdf  PDF (Portable Document File) file driver
          pdfcairo  pdf terminal based on cairo
               png  PNG images using libgd and TrueType fonts
          pngcairo  png terminal based on cairo
        postscript  PostScript graphics, including EPSF embedded files  
(*.eps)
           pslatex  LaTeX picture environment with PostScript \specials
             pstex  plain TeX with PostScript \specials
Press return for more:
          pstricks  LaTeX picture environment with PSTricks macros
               qms  QMS/QUIC Laser printer (also Talaris 1200 and  
others)
             regis  REGIS graphics language
              rgip  RGIP metafile (Uniplex). Option: fontsize (1-8)
             starc  Star Color Printer
               svg  W3C Scalable Vector Graphics driver
       tandy_60dpi  Tandy DMP-130 series 60-dot per inch graphics
           tek40xx  Tektronix 4010 and others; most TEK emulators
           tek410x  Tektronix 4106, 4107, 4109 and 420X terminals
           texdraw  LaTeX texdraw environment
              tgif  TGIF X11 [mode] [x,y] [dashed] ["font" [fontsize]]
              tikz  TeX TikZ graphics macros via the lua script driver
          tkcanvas  Tk/Tcl canvas widget [perltk] [interactive]
              tpic  TPIC -- LaTeX picture environment with tpic  
\specials
           uniplex  RGIP metafile (Uniplex). Option: fontsize (1-8)  
(Same as rgip)
           unknown  Unknown terminal type - not a plotting device
             vttek  VT-like tek40xx terminal emulator
               x11  X11 Window System
              xlib  X11 Window System (gnulib_x11 dump)
             xterm  Xterm Tektronix 4014 Mode

Please verify your gnuplot supports "aqua" and "x11".

If "aqua" is not present, then you can use the "x11" terminal by  
adding the following to your ~/.octaverc file

        setenv ("GNUTERM", "x11")

If both aqua and x11 are listed, be sure to type "close all" before  
you use "gnuplot_binary" to set the path to your gnuplot. If you set  
gnuplot_binary in your ~/.octaverc, be sure to quit and restart octave  
before attempting a plot.

Ben


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[Thomas Treichl]

Ben Abbott schrieb:

> On Oct 13, 2009, at 12:19 PM, Bob Q wrote:
>
>> Hello,
>>
>> I downloaded and installed the octave-3.2.3 dmg on Mac OS X (10.6,  
>> intel) along with the gnuplot-4.2.6 dmg in the Extras.
>>
>> At first, it could not find gnuplot...
>>
>>> plot(x,y)
>> [quote]
>> error: popen2 (child): unable to start process -- No such file or  
>> directory
>> error: called from:
>> error:   /Applications/Octave 3.2.3.app/Contents/Resources/share/
>> octave/3.2.3/m/plot/__gnuplot_open_stream__.m at line 28, column 44
>> error:   /Applications/Octave 3.2.3.app/Contents/Resources/share/
>> octave/3.2.3/m/plot/gnuplot_drawnow.m at line 85, column 19
>> sh: gnuplot: command not found
>> error: you must have gnuplot installed to display graphics; if you  
>> have gnuplot installed in a non-standard location, see the  
>> 'gnuplot_binary' function
>> octave-3.2.3:4> gnuplot_binary("/Applications/Gnuplot")
>> octave-3.2.3:5> plot(x,y)
>> sh: /Applications/Gnuplot: No such file or directory
>> error: you must have gnuplot installed to display graphics; if you  
>> have gnuplot installed in a non-standard location, see the  
>> 'gnuplot_binary' function
>> [/quote]
>>
>> ...solving this with a...
>>
>>> gnuplot_binary("/Applications/Gnuplot.app/Contents/Resources/bin/
>> gnuplot")
>>
>> ...and again plotting gives...
>> [quote]
>> error: `unset' undefined near line 4 column 1
>> warning: broken pipe -- some output may be lost
>> [/quote]
>>
>> where it can only be escaped with a ctrl-c.
>>
>> Is gnuplot 4.2.6 not working with octave 3.2.3?  Is there a way  
>> around this?
>>
>> Your help or advise is greatly appreciated.
>>
>> Thanks, Bob
>
> Bob,
>
> I've had no trouble with gnuplot 4.2.3 or later versions. I'm  
> currently running gnuplot's developer's sources.
>
> Please try running gnuplot directly and type "set term". You'll see a  
> list of available terminals. For example, I get the list below ....
>
> gnuplot> set term
>
> Available terminal types:
>               aqua  Interface to graphics terminal server for Mac OS X
>             canvas  HTML Canvas object
>                cgm  Computer Graphics Metafile
>              corel  EPS format for CorelDRAW
>             dpu414  Seiko DPU-414 thermal printer [small medium large]
>               dumb  ascii art for anything that prints text
>                dxf  dxf-file for AutoCad (default size 120x80)
>              eepic  EEPIC -- extended LaTeX picture environment
>                emf  Enhanced Metafile format
>              emtex  LaTeX picture environment with emTeX specials
>           epslatex  LaTeX picture environment using graphicx package
>       epson_180dpi  Epson LQ-style 180-dot per inch (24 pin) printers
>        epson_60dpi  Epson-style 60-dot per inch printers
>        epson_lx800  Epson LX-800, Star NL-10, NX-1000, PROPRINTER ...
>                fig  FIG graphics language for XFIG graphics editor
>                gif  GIF images using libgd and TrueType fonts
>           gnugraph  GNU plot(1) format ["fontname" font_size]
>               gpic  GPIC -- Produce graphs in groff using the gpic  
> preprocessor
>            hp2623A  HP2623A and maybe others
>             hp2648  HP2648 and HP2647
>             hp500c  HP DeskJet 500c, [75 100 150 300] [rle tiff]
> Press return for more:
>               hpdj  HP DeskJet 500, [75 100 150 300]
>               hpgl  HP7475 and relatives [number of pens] [eject]
>             hpljii  HP Laserjet series II, [75 100 150 300]
>               hppj  HP PaintJet and HP3630 [FNT5X9 FNT9X17 FNT13X25]
>             imagen  Imagen laser printer
>               jpeg  JPEG images using libgd and TrueType fonts
>              latex  LaTeX picture environment
>                lua  Lua generic terminal driver
>                 mf  Metafont plotting standard
>                mif  Frame maker MIF 3.00 format
>                 mp  MetaPost plotting standard
>            nec_cp6  NEC printer CP6, Epson LQ-800 [monocrome color  
> draft]
>            okidata  OKIDATA 320/321 Standard
>                pbm  Portable bitmap [small medium large] [monochrome  
> gray color]
>               pcl5  HP Designjet 750C, HP Laserjet III/IV, etc. (many  
> options)
>                pdf  PDF (Portable Document File) file driver
>           pdfcairo  pdf terminal based on cairo
>                png  PNG images using libgd and TrueType fonts
>           pngcairo  png terminal based on cairo
>         postscript  PostScript graphics, including EPSF embedded files  
> (*.eps)
>            pslatex  LaTeX picture environment with PostScript \specials
>              pstex  plain TeX with PostScript \specials
> Press return for more:
>           pstricks  LaTeX picture environment with PSTricks macros
>                qms  QMS/QUIC Laser printer (also Talaris 1200 and  
> others)
>              regis  REGIS graphics language
>               rgip  RGIP metafile (Uniplex). Option: fontsize (1-8)
>              starc  Star Color Printer
>                svg  W3C Scalable Vector Graphics driver
>        tandy_60dpi  Tandy DMP-130 series 60-dot per inch graphics
>            tek40xx  Tektronix 4010 and others; most TEK emulators
>            tek410x  Tektronix 4106, 4107, 4109 and 420X terminals
>            texdraw  LaTeX texdraw environment
>               tgif  TGIF X11 [mode] [x,y] [dashed] ["font" [fontsize]]
>               tikz  TeX TikZ graphics macros via the lua script driver
>           tkcanvas  Tk/Tcl canvas widget [perltk] [interactive]
>               tpic  TPIC -- LaTeX picture environment with tpic  
> \specials
>            uniplex  RGIP metafile (Uniplex). Option: fontsize (1-8)  
> (Same as rgip)
>            unknown  Unknown terminal type - not a plotting device
>              vttek  VT-like tek40xx terminal emulator
>                x11  X11 Window System
>               xlib  X11 Window System (gnulib_x11 dump)
>              xterm  Xterm Tektronix 4014 Mode
>
> Please verify your gnuplot supports "aqua" and "x11".
>
> If "aqua" is not present, then you can use the "x11" terminal by  
> adding the following to your ~/.octaverc file
>
> setenv ("GNUTERM", "x11")
>
> If both aqua and x11 are listed, be sure to type "close all" before  
> you use "gnuplot_binary" to set the path to your gnuplot. If you set  
> gnuplot_binary in your ~/.octaverc, be sure to quit and restart octave  
> before attempting a plot.
>
> Ben

Hi Bob, hi Ben,

I expect it has nothing to do with the terminal here. I do more expect it has to
do with the "gnuplot_binary" or an environment variable. Bob, if you have
installed Octave.app and Gnuplot.app both in the same directory then you
normally need to set nothing, ie. don't need to set gnuplot_binary because it
already is set to 'gnuplot' - Octave.app then automatically finds Gnuplot.app.

Please start up Octave and do nothing else but just calling

   gnuplot_binary

Next please call the command in Octave.app

   system ('which gnuplot')

Can you reply the output please.

   Thomas
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[Bob Q]

Thanks Tatsuro, Ben, Thomas,

with your advise, I have solved it, though noticed a curious pattern...

As soon as I open octave, if I do a...

> gnuplot_binary("/Applications/Gnuplot.app/Contents/Resources/bin/gnuplot")

...then gnuplot will work.

If I try plotting before doing such a thing the plot will fail in the way I stated originally, and if I do this gnuplot_binary(...) after plotting then I get the error and broken pipe warning.

The only way for it to work is if I do the gnuplot_binary before doing even one plot command.  Maybe some internal state changes in octave after doing the first plot and its failure that makes the gnuplot_binary become useless thereafter.


Before doing a gnuplot_binary("/Applications/Gnuplot.app/Contents/Resources/bin/gnuplot") ...

> gnuplot_binary
ans = gnuplot

> system ('which gnuplot')
ans =  1

...and attempting to run the command "gnuplot" from a bash terminal also cannot find it.


I don't actually have a ~/.octaverc.  Can I just make one a put the above gnuplot_binary(...) command in straight?


thanks for all your other hints and tips.
 - el Bobbo

On Wed, Oct 14, 2009 at 8:22 AM, Thomas Treichl <Thomas.Treichl@...> wrote:

Ben Abbott schrieb:

On Oct 13, 2009, at 12:19 PM, Bob Q wrote:

Hello,

I downloaded and installed the octave-3.2.3 dmg on Mac OS X (10.6,  intel) along with the gnuplot-4.2.6 dmg in the Extras.

At first, it could not find gnuplot...

plot(x,y)

[quote]
error: popen2 (child): unable to start process -- No such file or  directory
error: called from:
error:   /Applications/Octave 3.2.3.app/Contents/Resources/share/ octave/3.2.3/m/plot/__gnuplot_open_stream__.m at line 28, column 44
error:   /Applications/Octave 3.2.3.app/Contents/Resources/share/ octave/3.2.3/m/plot/gnuplot_drawnow.m at line 85, column 19
sh: gnuplot: command not found
error: you must have gnuplot installed to display graphics; if you  have gnuplot installed in a non-standard location, see the  'gnuplot_binary' function
octave-3.2.3:4> gnuplot_binary("/Applications/Gnuplot")
octave-3.2.3:5> plot(x,y)
sh: /Applications/Gnuplot: No such file or directory
error: you must have gnuplot installed to display graphics; if you  have gnuplot installed in a non-standard location, see the  'gnuplot_binary' function
[/quote]

...solving this with a...

gnuplot_binary("/Applications/Gnuplot.app/Contents/Resources/bin/

gnuplot")

...and again plotting gives...
[quote]
error: `unset' undefined near line 4 column 1
warning: broken pipe -- some output may be lost
[/quote]

where it can only be escaped with a ctrl-c.

Is gnuplot 4.2.6 not working with octave 3.2.3?  Is there a way  around this?

Your help or advise is greatly appreciated.

Thanks, Bob

Bob,

I've had no trouble with gnuplot 4.2.3 or later versions. I'm  currently running gnuplot's developer's sources.

Please try running gnuplot directly and type "set term". You'll see a  list of available terminals. For example, I get the list below ....

gnuplot> set term

Available terminal types:
             aqua  Interface to graphics terminal server for Mac OS X
///SNIP///
              x11  X11 Window System
///SNIP///

Please verify your gnuplot supports "aqua" and "x11".

If "aqua" is not present, then you can use the "x11" terminal by  adding the following to your ~/.octaverc file

       setenv ("GNUTERM", "x11")

If both aqua and x11 are listed, be sure to type "close all" before  you use "gnuplot_binary" to set the path to your gnuplot. If you set  gnuplot_binary in your ~/.octaverc, be sure to quit and restart octave  before attempting a plot.

Ben

Hi Bob, hi Ben,

I expect it has nothing to do with the terminal here. I do more expect it has to do with the "gnuplot_binary" or an environment variable. Bob, if you have installed Octave.app and Gnuplot.app both in the same directory then you normally need to set nothing, ie. don't need to set gnuplot_binary because it already is set to 'gnuplot' - Octave.app then automatically finds Gnuplot.app.

Please start up Octave and do nothing else but just calling

 gnuplot_binary

Next please call the command in Octave.app

 system ('which gnuplot')

Can you reply the output please.

 Thomas

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[Tatsuro MATSUOKA-2]

Hello

--- Bob Q wrote:

> I don't actually have a ~/.octaverc.  Can I just make one a put the above
> gnuplot_binary(...) command in straight?

If '/Applications/Gnuplot.app/Contents/Resources/bin/gnuplot' on bash can start gnuplot, the above you
 wrote is right.

Good luck!

Tatsuro


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