Re: Doubt about plotting on MAC OS X Catalina

[Christian Robert]

And note that ⎕PLOT plot matrix, not vector as in:


      ⎕PLOT 0 1 ¯1 2 ¯2 3 ¯3
LENGTH ERROR
      ⎕PLOT 0 1 ¯1 2 ¯2 3 ¯3
      ^

      ⎕PLOT 1 7 ⍴ 0 1 ¯1 2 ¯2 3 ¯3
139625030256384  ⍝ <- X11 handle to possibly close later


I'm not sure if the behavior changed lately... me too I though I could plot a 
vector some time ago but I may be mistaken.


Xtian.


On 2019-11-26 11:27, Dr. Jürgen Sauermann wrote:
> Hi Toni,
>
> the *+* character after *SYNTAX ERROR* (or any other APL error) indicates that 
> there
> is more information available regarding that error. The additional information
> can be displayed with command *)MORE*.
>
> I suspect that in this particular case libraries needed for plotting 
> (essentially libX11.so,
> libxcb.so, and libX11-xcb.so) were missing on the platform where GNU APL was 
> compiled
> (i.e. your own machine if you compiled from source or the build machine of a 
> package if
> you installed a binary package).
>
> For *⎕PLOT *to work, you may need to compile the interpreter from source with 
> the required
> X libraries installed beforehand.
>
> Best Regards,
> Jürgen Sauermann
>
>
> On 11/26/19 2:27 PM, Antonio Juan wrote:
> > Thanks for this awesome software. I have installed gnu plot 1.8 from brew 
> > package. It works well, and good integration with emacs. So it is a good 
> > environment for learning APL.
> >
> > The only think is that when I try to plot I always get the following error:
> >
> >         ⎕PLOT 0 1 ¯1 2 ¯2 3 ¯3
> > SYNTAX ERROR+
> >        ⎕PLOT 0 1 ¯1 2 ¯2 3 ¯3
> >        ^
> >
> > I do not see anywhere, if is needed to load a workspace, or the needed for some 
> > environment configuration during installation. So really I do not know how to 
> > proceed.
> >
> > Thanks for your time
> >
> > Toni