[Octave-bug-tracker] [bug #58566] plotyy() and subplot() generate errors

[Markus Mützel]

Follow-up Comment #7, bug #58566 (project octave):

So maybe we should just document that that is the supported way of using
"subplot" with "plotyy" in a loop.
Maybe a "usage recommendation" at the end of the docstring of subplot.
Something in the lines of:
If subplot axes should be referenced repeatedly, consider creating and storing
their axes handles beforehand instead of calling subplot repeatedly for the
same axes.
Example:

  x = 1:10;
  y = rand (16, 10);
  for i_plot = 1:4
    hax(i_plot ) = subplot (2, 2, i_plot );
    hold (hax(i_plot ), "on");
    grid (hax(i_plot ), "on");
  endfor
  for i_loop = 1:2
    for i_plot =1:4
      iy = (i_loop -1)*4 + i_plot;
      plotyy (hax(i_plot), x,y(iy,:), x,y(iy+1,:));
    endfor
  endfor



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