MATLAB: Problem with 2014b for replotting with multiple legends in plotyy chart

multiple legendplotyy

I am trying to update a chart created with plotyy that uses two legend boxes for the two y-axes. I can create the chart, but when I replot the chart (normally with new data or with a different number of traces), I get the following error:
     Error using legend (line 120)
     'LayoutManager' is already defined as a property.
This code replicates the error (note: this worked fine in 2013a, but fails in 2014b)
   % setup and initial chart
      x = 1:10;
      y1 = [1:10;0:9];
      y2 = [20:-2:2];
      figure;
      [AX, H1, H2] = plotyy(x,y1,x,y2);
      legend(AX(1), 'y1', 'Location', 'NorthWest');
      legend(AX(2), 'y2', 'Location', 'NorthEast');
   % replot using the same commands - this first part works as expected
      [AX, H1, H2] = plotyy(x,y1,x,y2);
      legend(AX(1), 'y1', 'Location', 'NorthWest');
   % This last line fails with the error noted above
      legend(AX(2), 'y2', 'Location', 'NorthEast');
Any thoughts?

Best Answer

I submitted the problem to the support group at The Mathworks and got a response that works. If I use "clf" (clear figure) before the second call to plotyy, the replot works fine. This serves my needs and will let me deploy some programs under 2014b.
In the response, I was told that the problem has been fixed in the 2015b prerelease, so hopefully this will not be an issue when the full release comes out.
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