Text on plots

[dmelliott]

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Dear Help,

 

    When I copy the example in the "octave help" at the beginning of section 15.1.3 Plot Annotations into an m-file and try to run it, absolutely no text appears on the graph other than the axis numbering.

    I have tried the methods that I used, successfully, in Matlab, and they do not work either.  How can I make a graph title and axis labels on a figure generated with "plot"?

    I am using the handle graphics.

 

 

                                                                                     More than a bit frustrated,

 

                                                                                                    Douglas M Elliott

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[billkreamer]

Dear Help,

    When I copy the example in the "octave help" at the beginning of section
15.1.3 Plot Annotations into an m-file and try to run it, absolutely no text
appears on the graph other than the axis numbering.
    I have tried the methods that I used, successfully, in Matlab, and they
do not work either.  How can I make a graph title and axis labels on a
figure generated with "plot"?
    I am using the handle graphics.

There are the xlabel and ylabel commands that allow the user to designate
the purpose of the plot. The command goes    xlabel "any text";      Place
these commands in the m file before the plot command.
 

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[Ivan Sutoris]

On Sun, Jan 25, 2009 at 7:26 PM, dmelliott <dmelliott@...> wrote:

>
> Dear Help,
>
>     When I copy the example in the "octave help" at the beginning of section
> 15.1.3 Plot Annotations into an m-file and try to run it, absolutely no text
> appears on the graph other than the axis numbering.
>     I have tried the methods that I used, successfully, in Matlab, and they
> do not work either.  How can I make a graph title and axis labels on a
> figure generated with "plot"?
>     I am using the handle graphics.
>
>
>
> More than a bit frustrated,
>
>
>                         Douglas M Elliott

Hi

Axes labels can be added with xlabel/ylabel/zlabel functions, figure
title with "title" function. If you've tried these and they don't
work, something is wrong. In that case, can you please provide more
information, like what OS and which version of Octave you're using?
What specific commands did you use and did you get any error messages?

Regards
Ivan Sutoris
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[Ben Abbott]

On Jan 25, 2009, at 1:26 PM, dmelliott wrote:

>
> Dear Help,
>
>     When I copy the example in the "octave help" at the beginning of  
> section 15.1.3 Plot Annotations into an m-file and try to run it,  
> absolutely no text appears on the graph other than the axis numbering.
>     I have tried the methods that I used, successfully, in Matlab,  
> and they do not work either.  How can I make a graph title and axis  
> labels on a figure generated with "plot"?
>     I am using the handle graphics.
>
>
>                                                                                      More
>  than a bit frustrated,
>
>                                                                                                     Douglas
>  M Elliott

I assume you are trying something like what is below?

        set (get (gca, 'xlabel'), 'string', 'some xlabel'))

Depending upon the version of octave you are running that may not work.

It does work for me (Octave 3.0.3). What version of Octave are your  
running?

If you are running an older version, you can update your octave or  
take the advice offered by Bill and Ivan.

Ben

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[Ben Abbott]

On Monday, January 26, 2009, at 08:14AM, "dmelliott" <dmelliott@...> wrote:

>  ----- Original Message -----
>  From: Ben Abbott
>  To: dmelliott
>  Cc: help-octave@...
>  Sent: Sunday, January 25, 2009 2:49 PM
>  Subject: Re: Text on plots
>
>  On Jan 25, 2009, at 1:26 PM, dmelliott wrote:
>
>  >
>  > Dear Help,
>  >
>  >     When I copy the example in the "octave help" at the beginning of  
>  > section 15.1.3 Plot Annotations into an m-file and try to run it,  
>  > absolutely no text appears on the graph other than the axis numbering.
>  >     I have tried the methods that I used, successfully, in Matlab,  
>  > and they do not work either.  How can I make a graph title and axis  
>  > labels on a figure generated with "plot"?
>  >     I am using the handle graphics.
>  >
>  >
>  >                                                                                      More
>  >  than a bit frustrated,
>  >
>  >                                                                                                     Douglas
>  >  M Elliott
>
>  I assume you are trying something like what is below?
>
>  set (get (gca, 'xlabel'), 'string', 'some xlabel'))
>
>  Depending upon the version of octave you are running that may not work.
>
>  It does work for me (Octave 3.0.3). What version of Octave are your  
>  running?
>
>  If you are running an older version, you can update your octave or  
>  take the advice offered by Bill and Ivan.
>
>  Ben
>
>
>Dear Mr. Abbott,
>
>    Thank you for your very speedy reply.
>
>    The way you suggest makes perfect sense to me, having used Matlab for years.  However, I can not get it to work.  If I could ask a small favor of you, it would be greatly appreciated.
>
>    Could you rewrite and test the example from the directions:
>
>
>                                    x=-10:0.1:10;
>                                    plot(x,sin(x));
>                                    title("sin(x)  for  x=-10:0.1:10");
>                                    xlabel("x");
>                                    ylabel("sin(x)");
>                                    text(pi,0.7,"arbitrary text");
>                                    legend("sin(x)");
>
>
>and send the working code back.  If I had something that I know should work, then I might be able to proceed.
>
>    I have tried every combination of things that I can think of, with no success.  I uninstalled V3.0.3, download it again, and installed it only to have exactly the same results.  The OS is XP.  When installing, every possible option was chosen.
>
>    There are several things that are working just fine such as line,  toolbar, numbertitle, figure name and position, axes tics, grid, and number formatting, etc.  Everything but the text.
>
>
>                                                                                  Thanking you in advance,
>
>                                                                                              Douglas M. Elliott

Your code works perfectly for me. I have no experience with octave on XP. In the event someone else can help, I've cc'd the help list again (we dropped of at some point).

It may be that octave is working properly and that the trouble is with gnuplot. Please try to determine what version of gnuplot you have installed, and were you got it from. It may also be useful to know where you obtained Octave from.

Regarding gnuplot, we can take a look at the information being sent from octave to gnuplot. That should help us determine where your problem lies. You can save the gnuplot stream by typing the following after the plot commands have been executed.

        drawnow ("windows", "/dev/null", true, "windows.gp")

Please attach the result to your next reply and I'll look it over.

Ben

p.s. please respond at the bottom so that others who join the discussion have an easier time following along. Thanks.



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[Ben Abbott]

On Tuesday, January 27, 2009, at 10:10AM, "dmelliott" <dmelliott@...> wrote:

>
>  ----- Original Message -----
>  From: Ben Abbott
>  To: dmelliott
>  Cc: GNU Octave
>  Sent: Monday, January 26, 2009 7:52 AM
>  Subject: Re: Text on plots
>
>
>On Monday, January 26, 2009, at 08:14AM, "dmelliott" <dmelliott@...> wrote:
>
>>  ----- Original Message -----
>>  From: Ben Abbott
>>  To: dmelliott
>>  Cc: help-octave@...
>>  Sent: Sunday, January 25, 2009 2:49 PM
>>  Subject: Re: Text on plots
>>
>>  On Jan 25, 2009, at 1:26 PM, dmelliott wrote:
>>
>>  >
>>  > Dear Help,
>>  >
>>  >     When I copy the example in the "octave help" at the beginning of  
>>  > section 15.1.3 Plot Annotations into an m-file and try to run it,  
>>  > absolutely no text appears on the graph other than the axis numbering.
>>  >     I have tried the methods that I used, successfully, in Matlab,  
>>  > and they do not work either.  How can I make a graph title and axis  
>>  > labels on a figure generated with "plot"?
>>  >     I am using the handle graphics.
>>  >
>>  >
>>  >                                                                                      More
>>  >  than a bit frustrated,
>>  >
>>  >                                                                                                     Douglas
>>  >  M Elliott
>>
>>  I assume you are trying something like what is below?
>>
>>  set (get (gca, 'xlabel'), 'string', 'some xlabel'))
>>
>>  Depending upon the version of octave you are running that may not work.
>>
>>  It does work for me (Octave 3.0.3). What version of Octave are your  
>>  running?
>>
>>  If you are running an older version, you can update your octave or  
>>  take the advice offered by Bill and Ivan.
>>
>>  Ben
>>
>>
>>Dear Mr. Abbott,
>>
>>    Thank you for your very speedy reply.
>>
>>    The way you suggest makes perfect sense to me, having used Matlab for years.  However, I can not get it to work.  If I could ask a small favor of you, it would be greatly appreciated.
>>
>>    Could you rewrite and test the example from the directions:
>>
>>
>>                                    x=-10:0.1:10;
>>                                    plot(x,sin(x));
>>                                    title("sin(x)  for  x=-10:0.1:10");
>>                                    xlabel("x");
>>                                    ylabel("sin(x)");
>>                                    text(pi,0.7,"arbitrary text");
>>                                    legend("sin(x)");
>>
>>
>>and send the working code back.  If I had something that I know should work, then I might be able to proceed.
>>
>>    I have tried every combination of things that I can think of, with no success.  I uninstalled V3.0.3, download it again, and installed it only to have exactly the same results.  The OS is XP.  When installing, every possible option was chosen.
>>
>>    There are several things that are working just fine such as line,  toolbar, numbertitle, figure name and position, axes tics, grid, and number formatting, etc.  Everything but the text.
>>
>>
>>                                                                                  Thanking you in advance,
>>
>>                                                                                              Douglas M. Elliott
>
>
>Your code works perfectly for me. I have no experience with octave on XP. In the event someone else can help, I've cc'd the help list again (we dropped of at some point).
>
>It may be that octave is working properly and that the trouble is with gnuplot. Please try to determine what version of gnuplot you have installed, and were you got it from. It may also be useful to know where you obtained Octave from.
>
>Regarding gnuplot, we can take a look at the information being sent from octave to gnuplot. That should help us determine where your problem lies. You can save the gnuplot stream by typing the following after the plot commands have been executed.
>
>        drawnow ("windows", "/dev/null", true, "windows.gp")
>
>Please attach the result to your next reply and I'll look it over.
>
>Ben
>
>p.s. please respond at the bottom so that others who join the discussion have an easier time following along. Thanks.
>
>
>___________________________________
>
>
>Dear Mr. Abbott,
>
>    Whatever it is that I have, I got from:
>
>        http://sourceforge.net/project/showfiles.php?group_id=2888&package_id=40078
>
>selecting V3.0.3.
>
>
>    As to the gnuplot version, using the function given in the included docs:
>
>        version=__gnuplot_version__()
>
>version 4.3 is reported.  This strikes me as odd since SourceForge's latest is 4.2.4.  The executables themselves were, for some reason, written without a "properties" section, so I can not tell from that.
>
>
>    Alternatively, it could be in the mfiles.  I was advised earlier, for a related problem, to try:
>
>        pkg load jhandles
>        help uicontrol
>
>by Mr. Goffioul, and got an error message saying that uicontrol was not documented.  I get any number of "not there's" when I try to set properties that the directions say I should be able to, so it could be in the mfile interfaces.
>
>
>    I note that there is a caution for the 4.2 versions at SourceForge:
>
>"- Octave has recently changed its method of sending data to gnuplot for  plotting; data is passed in-line through the pipe to gnuplot's stdin.   Unfortunately, the current Gnuplot 4.2 code does not support mouse interaction with in-line data. This problem is fixed in the CVS version, but not in the current release version 4.2.4."
>
>Now if I knew where the CVS version was, I might be able to download it.
>
>
>    I tried your suggestion:
>
>            drawnow ("windows","/dev/null",true,"windows.gp")
>
>thank you, and got:
>
>        error: unsupported output format: windows

ok, as I don't have a windows box, it is likely I got that wrong. Try

        drawnow ("x11", "/dev/null", true, "x11.gp")

You will get some errors, but the x11.gp file should be written to the current directory.

>This makes sense given the function file content:
>
>        function drawnow (term, file, mono, debugfile)
>
>        h = get(0, 'currentfigure');
>        if (! isempty (h) && h != 0 && ishandle (h))
>          fig = __get_object__ (h);
>          if (nargin == 0)
>            fig.redraw ();
>          elseif (nargin >= 2)
>            elt = cellstr (split (term, " "));
>            switch elt{1}
>            case {"png", "postscript"}
>              fig.print (elt{1}, file);
>            otherwise
>              error ("unsupported output format: %s", term);
>            endswitch
>          endif
>        endif
>
>        endfunction

hmmm ... that is definitely not the correct file. I'd guess you had an earlier octave install and your present installation is pointed at its path.

What do you get when you type the following

    path

In any event, try typing the following lines ...

    path (pathdef);
    savepath;

... and then try some more plots. Hopefully, that will fix your problem.

Ben
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[Ben Abbott]

On Wednesday, January 28, 2009, at 08:15AM, "dmelliott" <dmelliott@...> wrote:

>
>  ----- Original Message -----
>  From: Ben Abbott
>  To: dmelliott
>  Cc: GNU Octave ; michael.goffioul@...
>  Sent: Tuesday, January 27, 2009 9:33 AM
>  Subject: Re: Text on plots
>
>
>  On Tuesday, January 27, 2009, at 10:10AM, "dmelliott" <dmelliott@...> wrote:
>  >
>  >  ----- Original Message -----
>  >  From: Ben Abbott
>  >  To: dmelliott
>  >  Cc: GNU Octave
>  >  Sent: Monday, January 26, 2009 7:52 AM
>  >  Subject: Re: Text on plots
>  >
>  >
>  >On Monday, January 26, 2009, at 08:14AM, "dmelliott" <dmelliott@...> wrote:
>  >
>  >>  ----- Original Message -----
>  >>  From: Ben Abbott
>  >>  To: dmelliott
>  >>  Cc: help-octave@...
>  >>  Sent: Sunday, January 25, 2009 2:49 PM
>  >>  Subject: Re: Text on plots
>  >>
>  >>  On Jan 25, 2009, at 1:26 PM, dmelliott wrote:
>  >>
>  >>  >
>  >>  > Dear Help,
>  >>  >
>  >>  >     When I copy the example in the "octave help" at the beginning of  
>  >>  > section 15.1.3 Plot Annotations into an m-file and try to run it,  
>  >>  > absolutely no text appears on the graph other than the axis numbering.
>  >>  >     I have tried the methods that I used, successfully, in Matlab,  
>  >>  > and they do not work either.  How can I make a graph title and axis  
>  >>  > labels on a figure generated with "plot"?
>  >>  >     I am using the handle graphics.
>  >>  >
>  >>  >
>  >>  >                                                                                      More
>  >>  >  than a bit frustrated,
>  >>  >
>  >>  >                                                                                                     Douglas
>  >>  >  M Elliott
>  >>
>  >>  I assume you are trying something like what is below?
>  >>
>  >>  set (get (gca, 'xlabel'), 'string', 'some xlabel'))
>  >>
>  >>  Depending upon the version of octave you are running that may not work.
>  >>
>  >>  It does work for me (Octave 3.0.3). What version of Octave are your  
>  >>  running?
>  >>
>  >>  If you are running an older version, you can update your octave or  
>  >>  take the advice offered by Bill and Ivan.
>  >>
>  >>  Ben
>  >>
>  >>
>  >>Dear Mr. Abbott,
>  >>
>  >>    Thank you for your very speedy reply.
>  >>
>  >>    The way you suggest makes perfect sense to me, having used Matlab for years.  However, I can not get it to work.  If I could ask a small favor of you, it would be greatly appreciated.
>  >>
>  >>    Could you rewrite and test the example from the directions:
>  >>
>  >>
>  >>                                    x=-10:0.1:10;
>  >>                                    plot(x,sin(x));
>  >>                                    title("sin(x)  for  x=-10:0.1:10");
>  >>                                    xlabel("x");
>  >>                                    ylabel("sin(x)");
>  >>                                    text(pi,0.7,"arbitrary text");
>  >>                                    legend("sin(x)");
>  >>
>  >>
>  >>and send the working code back.  If I had something that I know should work, then I might be able to proceed.
>  >>
>  >>    I have tried every combination of things that I can think of, with no success.  I uninstalled V3.0.3, download it again, and installed it only to have exactly the same results.  The OS is XP.  When installing, every possible option was chosen.
>  >>
>  >>    There are several things that are working just fine such as line,  toolbar, numbertitle, figure name and position, axes tics, grid, and number formatting, etc.  Everything but the text.
>  >>
>  >>
>  >>                                                                                  Thanking you in advance,
>  >>
>  >>                                                                                              Douglas M. Elliott
>  >
>  >
>  >Your code works perfectly for me. I have no experience with octave on XP. In the event someone else can help, I've cc'd the help list again (we dropped of at some point).
>  >
>  >It may be that octave is working properly and that the trouble is with gnuplot. Please try to determine what version of gnuplot you have installed, and were you got it from. It may also be useful to know where you obtained Octave from.
>  >
>  >Regarding gnuplot, we can take a look at the information being sent from octave to gnuplot. That should help us determine where your problem lies. You can save the gnuplot stream by typing the following after the plot commands have been executed.
>  >
>  >        drawnow ("windows", "/dev/null", true, "windows.gp")
>  >
>  >Please attach the result to your next reply and I'll look it over.
>  >
>  >Ben
>  >
>  >p.s. please respond at the bottom so that others who join the discussion have an easier time following along. Thanks.
>  >
>  >
>  >___________________________________
>  >
>  >
>  >Dear Mr. Abbott,
>  >
>  >    Whatever it is that I have, I got from:
>  >
>  >        http://sourceforge.net/project/showfiles.php?group_id=2888&package_id=40078
>  >
>  >selecting V3.0.3.
>  >
>  >
>  >    As to the gnuplot version, using the function given in the included docs:
>  >
>  >        version=__gnuplot_version__()
>  >
>  >version 4.3 is reported.  This strikes me as odd since SourceForge's latest is 4.2.4.  The executables themselves were, for some reason, written without a "properties" section, so I can not tell from that.
>  >
>  >
>  >    Alternatively, it could be in the mfiles.  I was advised earlier, for a related problem, to try:
>  >
>  >        pkg load jhandles
>  >        help uicontrol
>  >
>  >by Mr. Goffioul, and got an error message saying that uicontrol was not documented.  I get any number of "not there's" when I try to set properties that the directions say I should be able to, so it could be in the mfile interfaces.
>  >
>  >
>  >    I note that there is a caution for the 4.2 versions at SourceForge:
>  >
>  >"- Octave has recently changed its method of sending data to gnuplot for  plotting; data is passed in-line through the pipe to gnuplot's stdin.   Unfortunately, the current Gnuplot 4.2 code does not support mouse interaction with in-line data. This problem is fixed in the CVS version, but not in the current release version 4.2.4."
>  >
>  >Now if I knew where the CVS version was, I might be able to download it.
>  >
>  >
>  >    I tried your suggestion:
>  >
>  >            drawnow ("windows","/dev/null",true,"windows.gp")
>  >
>  >thank you, and got:
>  >
>  >        error: unsupported output format: windows
>
>  ok, as I don't have a windows box, it is likely I got that wrong. Try
>
>          drawnow ("x11", "/dev/null", true, "x11.gp")
>
>  You will get some errors, but the x11.gp file should be written to the current directory.
>
>  >This makes sense given the function file content:
>  >
>  >        function drawnow (term, file, mono, debugfile)
>  >
>  >        h = get(0, 'currentfigure');
>  >        if (! isempty (h) && h != 0 && ishandle (h))
>  >          fig = __get_object__ (h);
>  >          if (nargin == 0)
>  >            fig.redraw ();
>  >          elseif (nargin >= 2)
>  >            elt = cellstr (split (term, " "));
>  >            switch elt{1}
>  >            case {"png", "postscript"}
>  >              fig.print (elt{1}, file);
>  >            otherwise
>  >              error ("unsupported output format: %s", term);
>  >            endswitch
>  >          endif
>  >        endif
>  >
>  >        endfunction
>
>  hmmm ... that is definitely not the correct file. I'd guess you had an earlier octave install and your present installation is pointed at its path.
>
>  What do you get when you type the following
>
>      path
>
>  In any event, try typing the following lines ...
>
>      path (pathdef);
>      savepath;
>
>  ... and then try some more plots. Hopefully, that will fix your problem.
>
>  Ben
>____________________________________________________________________________________
>
>
>Dear Mr. Abbott,
>
>    I forgot that you are using a different installation then mine.  The "drawmow" that jhandles uses is the above.  There is another "drawnow", which I suspect is the one you thought would be used.  The above is in:
>
>        "X:\Octave\share\octave\packages\jhandles-0.3.4"
>
>whereas the one I think you wanted is in:
>
>        "X:\Octave\share\octave\3.0.3\m\plot"

ok, I missed that you were using jhandles. Jhandles doesn't install on my Mac, so I won't be any help with that.

>Since I was using jhandles, the copied one is the one in the jhandles path.  There are any number of similar files for both, since graphics is graphics.
>
>    I decided to try the other graphics, so I uninstalled and reinstalled Octave using the second copy obtained from the above source, and chose gnuplot as the default.  Then I again tried the sample in the instructions just after the start of section 15.1.3.  This yielded:
>
>>>(pgnuplot.exe:1572): Pango-WARNING **: couldn't load font "Helvetica Not-Rotated 200", falling back to "Sans Not-Rotated 200", expect ugly output.<<
>
>Apparently, there is some corruption in the plotting font file!  If both graphics use the same font source, and the handle stuff is less mature, thus having a bit weaker error trapping, this might be why no text appeared in the handle graph, and there was no warning.

This sort of error isn't that unusual. Was a plot produced?

You can suppress the warning by setting the default axes font to something your system supports. Apparently you don't have a Helvetica font available (is that normal gnuplot on Windows ?). Try the command below before plotting (it looks like you have "Sans" available, but I'm only guessing what a proper fontname would be).

    set (0,"defaultaxesfontname", "Sans")

Ben

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[dmelliott]

Ben Abbott wrote:

On Wednesday, January 28, 2009, at 08:15AM, "dmelliott" <[e-mail]> wrote:
>
>  ----- Original Message -----
>  From: Ben Abbott
>  To: dmelliott
>  Cc: GNU Octave ; [e-mail]
>  Sent: Tuesday, January 27, 2009 9:33 AM
>  Subject: Re: Text on plots
>
>
>  On Tuesday, January 27, 2009, at 10:10AM, "dmelliott" <[e-mail]> wrote:
>  >
>  >  ----- Original Message -----
>  >  From: Ben Abbott
>  >  To: dmelliott
>  >  Cc: GNU Octave
>  >  Sent: Monday, January 26, 2009 7:52 AM
>  >  Subject: Re: Text on plots
>  >
>  >
>  >On Monday, January 26, 2009, at 08:14AM, "dmelliott" <[e-mail]> wrote:
>  >
>  >>  ----- Original Message -----
>  >>  From: Ben Abbott
>  >>  To: dmelliott
>  >>  Cc: [e-mail]
>  >>  Sent: Sunday, January 25, 2009 2:49 PM
>  >>  Subject: Re: Text on plots
>  >>
>  >>  On Jan 25, 2009, at 1:26 PM, dmelliott wrote:
>  >>
>  >>  >
>  >>  > Dear Help,
>  >>  >
>  >>  >     When I copy the example in the "octave help" at the beginning of  
>  >>  > section 15.1.3 Plot Annotations into an m-file and try to run it,  
>  >>  > absolutely no text appears on the graph other than the axis numbering.
>  >>  >     I have tried the methods that I used, successfully, in Matlab,  
>  >>  > and they do not work either.  How can I make a graph title and axis  
>  >>  > labels on a figure generated with "plot"?
>  >>  >     I am using the handle graphics.
>  >>  >
>  >>  >
>  >>  >                                                                                      More
>  >>  >  than a bit frustrated,
>  >>  >
>  >>  >                                                                                                     Douglas
>  >>  >  M Elliott
>  >>
>  >>  I assume you are trying something like what is below?
>  >>
>  >>  set (get (gca, 'xlabel'), 'string', 'some xlabel'))
>  >>
>  >>  Depending upon the version of octave you are running that may not work.
>  >>
>  >>  It does work for me (Octave 3.0.3). What version of Octave are your  
>  >>  running?
>  >>
>  >>  If you are running an older version, you can update your octave or  
>  >>  take the advice offered by Bill and Ivan.
>  >>
>  >>  Ben
>  >>
>  >>
>  >>Dear Mr. Abbott,
>  >>
>  >>    Thank you for your very speedy reply.
>  >>
>  >>    The way you suggest makes perfect sense to me, having used Matlab for years.  However, I can not get it to work.  If I could ask a small favor of you, it would be greatly appreciated.
>  >>
>  >>    Could you rewrite and test the example from the directions:
>  >>
>  >>
>  >>                                    x=-10:0.1:10;
>  >>                                    plot(x,sin(x));
>  >>                                    title("sin(x)  for  x=-10:0.1:10");
>  >>                                    xlabel("x");
>  >>                                    ylabel("sin(x)");
>  >>                                    text(pi,0.7,"arbitrary text");
>  >>                                    legend("sin(x)");
>  >>
>  >>
>  >>and send the working code back.  If I had something that I know should work, then I might be able to proceed.
>  >>
>  >>    I have tried every combination of things that I can think of, with no success.  I uninstalled V3.0.3, download it again, and installed it only to have exactly the same results.  The OS is XP.  When installing, every possible option was chosen.
>  >>
>  >>    There are several things that are working just fine such as line,  toolbar, numbertitle, figure name and position, axes tics, grid, and number formatting, etc.  Everything but the text.
>  >>
>  >>
>  >>                                                                                  Thanking you in advance,
>  >>
>  >>                                                                                              Douglas M. Elliott
>  >
>  >
>  >Your code works perfectly for me. I have no experience with octave on XP. In the event someone else can help, I've cc'd the help list again (we dropped of at some point).
>  >
>  >It may be that octave is working properly and that the trouble is with gnuplot. Please try to determine what version of gnuplot you have installed, and were you got it from. It may also be useful to know where you obtained Octave from.
>  >
>  >Regarding gnuplot, we can take a look at the information being sent from octave to gnuplot. That should help us determine where your problem lies. You can save the gnuplot stream by typing the following after the plot commands have been executed.
>  >
>  >        drawnow ("windows", "/dev/null", true, "windows.gp")
>  >
>  >Please attach the result to your next reply and I'll look it over.
>  >
>  >Ben
>  >
>  >p.s. please respond at the bottom so that others who join the discussion have an easier time following along. Thanks.
>  >
>  >
>  >___________________________________
>  >
>  >
>  >Dear Mr. Abbott,
>  >
>  >    Whatever it is that I have, I got from:
>  >
>  >        http://sourceforge.net/project/showfiles.php?group_id=2888&package_id=40078
>  >
>  >selecting V3.0.3.
>  >
>  >
>  >    As to the gnuplot version, using the function given in the included docs:
>  >
>  >        version=__gnuplot_version__()
>  >
>  >version 4.3 is reported.  This strikes me as odd since SourceForge's latest is 4.2.4.  The executables themselves were, for some reason, written without a "properties" section, so I can not tell from that.
>  >
>  >
>  >    Alternatively, it could be in the mfiles.  I was advised earlier, for a related problem, to try:
>  >
>  >        pkg load jhandles
>  >        help uicontrol
>  >
>  >by Mr. Goffioul, and got an error message saying that uicontrol was not documented.  I get any number of "not there's" when I try to set properties that the directions say I should be able to, so it could be in the mfile interfaces.
>  >
>  >
>  >    I note that there is a caution for the 4.2 versions at SourceForge:
>  >
>  >"- Octave has recently changed its method of sending data to gnuplot for  plotting; data is passed in-line through the pipe to gnuplot's stdin.   Unfortunately, the current Gnuplot 4.2 code does not support mouse interaction with in-line data. This problem is fixed in the CVS version, but not in the current release version 4.2.4."
>  >
>  >Now if I knew where the CVS version was, I might be able to download it.
>  >
>  >
>  >    I tried your suggestion:
>  >
>  >            drawnow ("windows","/dev/null",true,"windows.gp")
>  >
>  >thank you, and got:
>  >
>  >        error: unsupported output format: windows
>
>  ok, as I don't have a windows box, it is likely I got that wrong. Try
>
>          drawnow ("x11", "/dev/null", true, "x11.gp")
>
>  You will get some errors, but the x11.gp file should be written to the current directory.
>
>  >This makes sense given the function file content:
>  >
>  >        function drawnow (term, file, mono, debugfile)
>  >
>  >        h = get(0, 'currentfigure');
>  >        if (! isempty (h) && h != 0 && ishandle (h))
>  >          fig = __get_object__ (h);
>  >          if (nargin == 0)
>  >            fig.redraw ();
>  >          elseif (nargin >= 2)
>  >            elt = cellstr (split (term, " "));
>  >            switch elt{1}
>  >            case {"png", "postscript"}
>  >              fig.print (elt{1}, file);
>  >            otherwise
>  >              error ("unsupported output format: %s", term);
>  >            endswitch
>  >          endif
>  >        endif
>  >
>  >        endfunction
>
>  hmmm ... that is definitely not the correct file. I'd guess you had an earlier octave install and your present installation is pointed at its path.
>
>  What do you get when you type the following
>
>      path
>
>  In any event, try typing the following lines ...
>
>      path (pathdef);
>      savepath;
>
>  ... and then try some more plots. Hopefully, that will fix your problem.
>
>  Ben
>____________________________________________________________________________________
>
>
>Dear Mr. Abbott,
>
>    I forgot that you are using a different installation then mine.  The "drawmow" that jhandles uses is the above.  There is another "drawnow", which I suspect is the one you thought would be used.  The above is in:
>
>        "X:\Octave\share\octave\packages\jhandles-0.3.4"
>
>whereas the one I think you wanted is in:
>
>        "X:\Octave\share\octave\3.0.3\m\plot"

ok, I missed that you were using jhandles. Jhandles doesn't install on my Mac, so I won't be any help with that.

>Since I was using jhandles, the copied one is the one in the jhandles path.  There are any number of similar files for both, since graphics is graphics.
>
>    I decided to try the other graphics, so I uninstalled and reinstalled Octave using the second copy obtained from the above source, and chose gnuplot as the default.  Then I again tried the sample in the instructions just after the start of section 15.1.3.  This yielded:
>
>>>(pgnuplot.exe:1572): Pango-WARNING **: couldn't load font "Helvetica Not-Rotated 200", falling back to "Sans Not-Rotated 200", expect ugly output.<<
>
>Apparently, there is some corruption in the plotting font file!  If both graphics use the same font source, and the handle stuff is less mature, thus having a bit weaker error trapping, this might be why no text appeared in the handle graph, and there was no warning.

This sort of error isn't that unusual. Was a plot produced?

You can suppress the warning by setting the default axes font to something your system supports. Apparently you don't have a Helvetica font available (is that normal gnuplot on Windows ?). Try the command below before plotting (it looks like you have "Sans" available, but I'm only guessing what a proper fontname would be).

    set (0,"defaultaxesfontname", "Sans")

Ben

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