stem plot problem [changeset]

[Ben Abbott]

On Oct 17, 2008, at 2:45 PM, John W. Eaton wrote:

> I'm seeing the following problem with the current development sources
> (this is demo 7 in stem.m):
>
>  octave:1>  x = [0:10].';
>  octave:2>  y = [sin(x), cos(x)];
>  octave:3>  h = stem (x, y);
>  octave:4>  set (h(2), "color", "g");
>  octave:5>  set (h(1), "basevalue", 1)
>  error: number of rows must match (33 != 11) near line 468, column 33
>  error: called from:
>  error:   /home/jwe/src/octave/scripts/plot/__go_draw_axes__.m at  
> line 468, column 24
>  error:   /home/jwe/src/octave/scripts/plot/__go_draw_figure__.m at  
> line 56, column 8
>  error:   /home/jwe/src/octave/scripts/plot/gnuplot_drawnow.m at  
> line 68, column 5
>
> The problem appears to be this concatenation at line 465 in
> __go_draw_axes__.m:
>
> 	      data{data_idx} = [xdat, ydat]';
>
> Again, I don't understand what is supposed to be happening, or why
> xdat has 11 elements and ydat has 33 at this point.  I could use
> some help fixing this problem.
>
> jwe

Ok, taking a fresh look at __stem__.m this morning the problem was  
quite clear.

The subfunction "move_baseline" presumed the old ordering of children.  
Recently the order was changed so that the kids(end) are the elder and  
kids(1) the youger. The attached trivial changeset fixes the problem.

Ben

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