Re: clf reset

[Daryl Lee]

On Apr 5, 2011, at 5:22 PM, Doug Stewart wrote:

> 
> 
> On Tue, Apr 5, 2011 at 7:03 PM, Daryl Lee <address@hidden> wrote:
> On 4/5/2011 4:22 PM, marco atzeri wrote:
> On Tue, Apr 5, 2011 at 11:44 PM, Daryl Lee  wrote:
> I am trying to use Octave to learn Matlab, based on the online text
> 
> "Numerical Computing with Matlab", at
> http://www.mathworks.com/moler/index_ncm.html.  That text provides a
> "starter kit" of examples in a folder called "ncm".  Many of the examples
> fail because they include lines consisting of "clf reset".  Octave pukes on
> the lines, pointing to line 68 in its own clf.m file.
> 
> The simplest script I can think of to reproduce the error is:
> 
> figure(1);
> clf reset;
> fplot(@sin, [-10, 10]);
> 
> Without the "clf reset;" line, the graph result is as expected; with it, I
> get an error and no graph.
> 
> The error report is:
> error: `reset' undefined near line 68 column 5
> error:  called from:
> error:  C:\Octave\3.2.4_gcc-4.4.0\share\octave\3.2.4\m\plot\clf.m at
>        line 68, column 5
> error:  d:\UNM\MatlabTut\trial02.m at line 2, column 1
> 
> My operating environment is Windows7-64, running Octave 3.2.4.
> 
> So far, this is the only problem I've encountered, but I've barely started.
> 
> Since I am a total newbie to Matlab/Octave, I'm sure this is something very
> fundamental that I have missed.  Where should I be looking to see what that
> might be?
> 
> --
> Daryl Lee
> 
> what "help clf" produce ?
> on octave 3.4.0, clf reset is available:
> 
> octave:2>  help clf
> `clf' is a function from the file /usr/share/octave/3.4.0/m/plot/clf.m
> 
>  -- Function File:  clf ()
>  -- Function File:  clf ("reset")
>  -- Function File:  clf (HFIG)
>  -- Function File:  clf (HFIG, "reset")
>      Clear the current figure window.  `clf' operates by deleting child
>      graphics objects with visible handles (`handlevisibility' = on).
>      If HFIG is specified operate on it instead of the current figure.
>      If the optional argument `"reset"' is specified, all objects
>      including those with hidden handles are deleted.
> 
> 
> Regards
> Marco
> 
> 
> 
> I get a similar response to "help clf".  And changing 'clf reset' in the 
> three-line script above to 'clf("reset")' changes nothing--I still get the 
> same error.
> 
> 
> -- 
> Daryl Lee
> 
> 
> Daryl   -- you have octave 3.2  not 3.4
> 
> What you could try is just clf  -- not clf reset
> 
> Doug
>  
> 

Thanks.  At least I know one path not to go down.  I installed 3.4 (for real) 
on my Mac OSX and at least got past the clf reset problem.  Now all I have to 
do is learn enough about this to implement "uicontrol", which I ran into next.  
But that's a story for another day.

Thanks again.

--
Daryl Lee