15.37.15  CURVE       

Generates  the fitted curve, (Y,DY) as a function of X, which replaces the
current data.  DY is calculated using the error matrix.
     1.  X                 Selects the X coordinate.  (Default)
     2.  Y                 Selects  the  Y  coordinate.   This  is used to
         generate a mesh.
     3.  APPEND  -  The  new data is appended to the current data as a new
         set rather than replacing it.
     4.  N - Sets the number of bins in the resulting curve.
     5.  FROM - Sets the lowest value for the fitted curve.
     6.  TO - Sets the highest value for the fitted curve.
     7.  BY - Sets the width between data points in the fitted curve.  You
         may not specify all four FROM,TO,BY, and N.
     8.  BINS  -  Specifies  that  FROM, TO refer to the lower edge of the
         first bin and the upper edge of the last bin.
     9.  VALUES - Specifies that FROM, TO refer to the center of the first
         and last bins.
         (Default:VALUES)

                                      Example
         The following all produce points at X=0.5,1.5,...9.5
              CURVE VALUES FROM .5 TO 9.5 BY 1
              CURVE BINS FROM 0 TO 10 BY 1
              CURVE BINS FROM 0 TO BY 1 N=10
              CURVE BINS FROM 0 TO BY 1 N=10 Y FROM 100 to 120 by 2

If  you do not specify FROM, TO ...  a set of values is assumed.  First if
you are fitting a histogram with equally spaced values, then  the  same  X
values are assumed.  Otherwise the current X tick spacing is used.