hold(ON) - hold(off)

[John W. Eaton]

On  4-Feb-2009, Stefan Pofahl wrote:

| Bug report for Octave 3.0.3 configured for i686-pc-msdosmsvc
| 
| Description:
| -----------
| 
|    * The command "hold on;" or "hold("on");" failes sometimes
| 
| Repeat-By:
| ---------
| 
|    * Here an example code:
| ------
| function hold_on_test ()
|    no = 2;
|    x = (1:0.1:10)';
| 
|    y(:,1) = cos(x);
|    y(:,2) = sin(x);
| 
| #
|    clf();
| # If I uncomment the command "plot(0);" in next line it works
| #  plot(0);
|    hold("on");
|    for i = 1:no
| #      hold on;
|      is_hold = ishold()
|      phandle(i) = plot(x,y(:,i));
|    endfor
|    hold("off");
| endfunction

I see this problem with 3.0.3 on my system, but not with the current
development sources of Octave, so I think the problem has been fixed.

jwe