16.1  LIST_OF_NAMES 

     NAMES - Value
  *  INPUT_LEVEL - The number of input files opened by SET FILE INPUT.
  *  CPUTIME - The current cpu time
  *  CPULIMIT - The cpu time remaining
  *  SETS - The number of data sets.
  *  CURRENT_SET - The current data set (Set by option:SETS=)
  *  XVALUE[np,nr,ns] - The X value for point n in set ns.
  *  DXVALUE[np,nr,ns] - The error on X for point np row nr in set ns
  *  NDX[np,nr,ns],NDY,NDZVALUE - Negative part of error bar.
  *  YVALUE[np,nr,ns]
  *  ZVALUE[np,nr,ns]
  *  UVALUE[np,nr,ns]
  *  VVALUE[np,nr,ns]
  *  WVALUE[np,nr,ns]
  *  DYVALUE[np,nr,ns]
  *  DZVALUE[np,nr,ns] - (data for point n)
  *  RVALUE[np,nr,ns],DRVALUE[np,nr,ns] - Radius in polar or spherical
     coordinates
  *  THVALUE[np,nr,ns],DTHVALUE[np,nr,ns] - Theta in polar or spherical
     coordinates

  *  PHIVALUE[np,nr,ns],DPHIVALUE[np,nr,ns] - Phi in Spherical coordinates 
  *  PLOTS - The number of plots produced.
  *  WINDOWS - The maximum number of windows
  *  CURRENT_WINDOW - The current window number
  *  XWINDOWS - The maximum number of X windows
  *  CURRENT_XWINDOW - The current X window number.
  *  YWINDOWS - The maximum number of Y windows
  *  CURRENT_YWINDOW - The current Y window number.
  *  COLUMNS - Number of columns in a mesh.
  *  CURRENT_COLUMN - Current column of a mesh (Set by option:POINT|
     COLUMN=)
  *  ROWS - Number of rows in a mesh.
  *  CURRENT_ROW - Current row in a mesh.  (Set by option:LINE|ROW=)

                      Calc by SET STATISTICS or SHOW DATA
  *  POINTS - The points in your data set.
  *  nMIN - The minimum value of n where n=X,Y, or Z.
  *  nMAX - The maximum value of n where n=X,Y, or Z.
  *  SUM - The sum over all points.
  *  AVERAGE - The average over all points.
  *  MEAN - The mean of the data.
  *  STD - The standard deviation of the data from the average.
  *  ESUM - The error on the sum.
  *  EAVERAGE - The error on the average.
  *  ESTD - The error in the STD.
  *  EMEAN - The error in the mean.

                              Calc by FIT command
  *  TERMS - The maximum term fit or constrained.  (0...20)
  *  NPFIT - Then number of points fit
  *  NTFIT - The number of terms fit.
  *  CHISQR - The chi squared/point.
  *  FTEST - The value of FTEST.
  *  FIT[n] - 1 if coefficient n has been fit (n=0-19), 0 if not.
  *  CONSTRAINED[n] - 1 if this coefficient has been picked or
     constrained.
  *  COEFFICIENT[n] - Value of the coefficient of the fit.
  *  ECOEFFICIENT[n] - Error on coefficient n.

                            SET by SET HIST command
  *  CURRENT_HISTOGRAM - The current histogram ID
     (See:Command SET HISTOGRAM)
  *  HIST_NAME - Current hist name (S_ only)
  *  HIST_ENTRIES - The number of entries in the hist
  *  HIST_MEAN - The mean of the hist
  *  HIST_STD - The hist standard deviation
  *  HIST_SUM[n1,n2] - The sum over this histogram.
          n1 = 1,2,3 for X Under,sum,over
          n2 = 1,2,3 for Y Under,sum,over
          If n1 or n2 are omitted or are 0 then you get the sum of all 3.
  *  XMARKER[n] - Array of 8 X markers
  *  YMARKER[n] - Array of 8 Y markers
  *  ZMARKER[n] - Array of 8 Z markers

                                3-d Parameters
  *  VIEW_THETA - Viewing angle
  *  VIEW_PHI - Viewing angle

  *  VIEW_SEPARATION - Eye separation 
  *  VIEW_DISTANCE - Distance from observer to object
  *  VIEW_SCRD - Distance from observer to screen

                                 Miscellaneous
  *  REPEAT[n] - Repeat number for loop n.