plot_steppar2

           plot 3-dim steppar values computed with the steppar command

           cafe

           plot type

          There group is always the last available one. Subgroup is
          always the first one.

           steppar2 - Plot the steppar values of last call with "steppar".
                      This will be a 3-d contour plot provided the
                      "steppar"-command was run with 2 parameters.
                      If not an error will be raised.

           Apart from IDL oplot keywords following special
                      are defined:
          shade    -  Plot a shaded surface instead surface mesh.
                      USING THIS OPTION WILL CLEAR ALL FORMER
                      DRAWINGS!
          surf     -  Plot a surface mesh.
          contour  -  Plot a contour plot (default)
          isolines -  Plot on shade/surface isolevel contour lines
                      (disable contour zvalue).
           gridnum  - Number of grid elements to be used for shading polygons.
                      Default: 50.
          deviation - Flag. If true (=1) the parameter values are
                      measured in deviation from the best-fit
                      parameter value.
          nofancy   - Flag which disables plotting of significance
                      levels, labels etc.

           Plots in current window.

           > model,parabel
               > fit
               steppar, 1,2
               plot, steppar2 -> displays contour of parameter 1/2

           $Id: cafe_plot_steppar2.pro,v 1.8 2003/11/05 09:03:56 goehler Exp $

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