plot

  plot method overloaded for jpeth class

  Examples:
  ph=plot(obj)
      plots the object in a new figure
  ph=plot(handle, obj)
      plots the object in the figure or uipanel specified by handle

  ph is the handle of the parent figure or uipanel of the plot

  Note, if no output arguments are specified, the handle property of the jpeth
  object in the calling workspace will be updated with the value of ph
  where this is possible (i.e. where the object is a named variable
  in the calling workspace resolvable by a call to inputname(...)).


  See also jpeth

  -------------------------------------------------------------------------
  Author: Malcolm Lidierth 02/09
  Copyright © The Author & King's College London 2009-
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