Re: Problem with simple graphics

[Ben Abbott]

On Feb 19, 2012, at 1:55 PM, Bernard Abramson wrote:

> On Feb 19, 2012, at 12:26 PM, Bernard Abramson wrote:
> 
>> On Feb 19, 2012, at 11:19 AM, Ben Abbott wrote:
>> 
>>> *** please reply-all so that others may benefit from our exchange ***
>>> 
>>> *** also respond at the bottom so that the entire exchange can be read from 
>>> top to bottom ***
>>> 
>>> On Feb 19, 2012, at 10:28 AM, Bernard Abramson wrote:
>>> 
>>>> On Feb 18, 2012, at 9:36 PM, Ben Abbott wrote:
>>>> 
>>>>> On Feb 18, 2012, at 5:40 PM, Bernard Abramson wrote:
>>>>> 
>>>>>> I have the current version of Octave (3.4.0) running on the current 
>>>>>> version of Mac OS X.  I have installed Gnuplot.  I have corrected the  
>>>>>> DYLD_LIBRARY_PATH problem in  Gnuplot-4.4.3.  However, when I appempt to 
>>>>>> plot in Octave I obtain:
>>>>>> 
>>>>>> octave-3.4.0:1> sombrero(25)
>>>>>> error: popen2: popen2 (child): unable to start process -- Operation not 
>>>>>> permitted
>>>>>> error: called from:
>>>>>> error:   
>>>>>> /Applications/Octave.app/Contents/Resources/share/octave/3.4.0/m/plot/__gnuplot_open_stream__.m
>>>>>>  at line 30, column 44
>>>>>> error:   
>>>>>> /Applications/Octave.app/Contents/Resources/share/octave/3.4.0/m/plot/__gnuplot_drawnow__.m
>>>>>>  at line 72, column 19
>>>>>> sh: /Applications/Gnuplot.app/Contents/Resources/bin/gnuplot: /bin/sh: 
>>>>>> bad interpreter: Operation not permitted
>>>>>> error: `unset' undefined near line 2 column 1
>>>>>> warning: broken pipe -- some output may be lost
>>>>>> 
>>>>>> Any suggestions?
>>>>>> 
>>>>>> Sincerely,
>>>>>> 
>>>>>> Bernard Abramson
>>>>> 
>>>>> What do you get when you type ...
>>>>> 
>>>>>   system ('which gnuplot')
>>>>> 
>>>>> ... I get ...
>>>>> 
>>>>>   /Applications/Gnuplot.app/Contents/Resources/bin/gnuplot
>>>>> 
>>>>> If so, what happens when you type ? ....
>>>>> 
>>>>>   system gnuplot
>>>>> 
>>>>> By "current verrsion of MacOS X do you refer to 10.7.3?
>>>>> 
>>>>> Ben
>>>>> 
>>>> Ben,
>>>> 
>>>> Thanks for the quick reply.
>>>> 
>>>> system('which gnuplot')
>>>> 
>>>> yields the same answer you quoted.
>>>> 
>>>> system gnuplot
>>>> 
>>>> yields:
>>>> 
>>>> sh: /Applications/Gnuplot.app/Contents/Resources/bin/gnuplot: /bin/sh: bad 
>>>> interpreter: Operation not permitted
>>>> ans =  126
>>>> 
>>>> Yes, I'm using OS X 10.7.3
>>>> 
>>>> Any suggestions will be appreciated.  Whatever is wrong must be minor as 
>>>> there ought to be many many successful installations of Octave on Mac.
>>>> 
>>>> Bernard
>>> 
>>> It looks like the change you made to the gnuplot script introduced a syntax 
>>> error.
>>> 
>>> Any chance you edited the file below with Textedit ?
>>> 
>>>     /Applications/Gnuplot.app/Contents/Resources/bin/gnuplot
>>> 
>>> If so, you'll need to be sure to save it as plain text. When saving be sure 
>>> you select "Plain Text Encoding [Unicode (UTF-8)] and uncheck the box to 
>>> make sure ".txt" isn't used as an extension.
>>> 
>>> If the gnuplot script was saved correctly, then I suspect you made a 
>>> mistake in modifying it ... or the instructions you followed contained a 
>>> mistake.
>>> 
>>> We recently updated the instructions for fixing gnuplot under Lion. See the 
>>> README at the link below.
>>> 
>>> http://sourceforge.net/projects/octave/files/Octave%20MacOSX%20Binary/2011-04-21%20binary%20of%20Octave%203.4.0/
>>> 
>>> Ben
>> 
>> Ben,
>> 
>> Yes I did use TextEdit to make the 4 changes to the DYLD_LIBRARY_PATH in 
>> gnuplot listed at 
>> http://sourceforge.net/projects/octave/files/Octave%20MacOSX%20Binary/2011-04-21%20binary%20of%20Octave%203.4.0/
>> 
>> So I reinstalled gnuplot.app, edited the file gnuplot using emacs and re-ran 
>> Octave.  This time no error message, AquaTerm started but no plot window 
>> opened.  I think that I'm only one step away from having this working so 
>> your help is much appreciated.
>> 
>> Bernard
> 
> OK, progress.  I included the line
> 
> setenv("GNUTERM","x11")
> 
> and obtained plots.  However,
> 
> setenv("GNUTERM","aqua")
> 
> causes Aquaterm to open but nothing is plotted.
> 
> Bernard

Try running gnuplot directly. 

If the terminal isn't set to aqua by default, type ...

        set terminal aqua

Then type

        plot sin(x)

Do you get a plot ?

Ben