15.78.2  BINS|VALUES 

     BINS
creates values at the centers of bins whose edge is defined by the values.
     VALUES
specifies the values for the specified coordinate.  If you specify a range
of  values  or  bins,   you   may   not   specify   operations   such   as
TIMES,DIVIDE,MINUS,PLUS or a coordinate such as X,Y,DX...  or an equation.
If you generate a new data set you must specify 3 numbers for  FROM,TO,BY,
and  N.   If  you modify an existing data set only 2 numbers are spcified.
You may also specify a single value.
                                 examples
     TD:DX=0.5
Sets all DX values to 0.5
     TD:X=BINS FROM 1 to 10 by 2
Generates a new data set with values X=2,4,6,8
     TD:X=VALUES FROM 1 TO 10 BY 2
          or...
     TD:X FROM 1 TO 10 BY 2
Generates a new data set with values X=1,3,5,7,9
     TD:X FROM 1 BY 2 SET=2
Modifies data set 2 with values X=1,3,5,7,9...
     TD:X=Y TIMES FROM 1 TO 10 BY 2
Is illegal
     TD:X=Y TIMES 2
is legal