1 Symbols

  For each type of plot a default symbol is defined (which you
  get if you give the command `SET SYMBOL 0'):
  Symbol  1 for 1-D histograms
         -1 for a series of points without errors
        -32 for a series of points with errors
         12 for 2-D histograms
          1 for scatter plots

  Note that histograms always get converted to a series of points when
  fitting, so the default symbol for `DISPLAY' is always -32.

  To get a picture of the available symbols issue the command
  `exec $MN_FIT/help/symbol.mnf' (Unix) or
  `EXEC MN_FIT_HELP:SYMBOL.MNF' (VMS).
  This picture is in Appendix B of the Mn_Fit manual.

  In  HIGZ/GKS versions  hatching  and patterns  are  available. You can
  specify the type using the commands `SET HATCH' and `SET PATTERN'.
  See HELP SET HATCH  for details on some of  the hatching available and
  the figures  in Appendix B.  Also see the  HIGZ/PAW documentation for
  HIGZ hatchings, and the GKS device documentation. As far as I know
  patterns are only available with DECGKS.

  The following symbols are available for histograms:
    -1        Solid line joining the centres of the bins
    -2        Dashed line joining the centres of the bins
    -3        Dotted line joining the centres of the bins
    -4        Dash-dot line joining the centres of the bins
    -5        HIGZ line style 12 - a dashed line
    -6        HIGZ line style 13 - a dash-dot line
    -7        HIGZ line style 14 - a widely spaced dotted line
    -8        HIGZ line style 15 - a dotted line
     1        Solid line histogram mode
     2        Dashed line histogram mode
     3        Dotted line histogram mode
     4        Dash-dot line histogram mode
     5        HIGZ line style 12 histogram mode
     6        HIGZ line style 13 histogram mode
     7        HIGZ line style 14 histogram mode
     8        HIGZ line style 15 histogram mode
    10        Dot
    11        Circle
    12        Square
    13        Triangle
    14        Inverted triangle
    15        Diamond
    16        Plus  (+)
    17        Cross (x)
    18        Asterix (*)
    19        Octogon (used to be 11)
    20-28     Show x error bars for histograms
    30-38     Show y error bars
    40-48     Show x and y error bars
    60-69     Show x error bars with line at end (symbol size, SET SSIZE)
    70-79     Show y error bars with line at end (symbol size, SET SSIZE)
    80-89     Show x and y error bars with line at end (symbol size, SET SSIZE)
    -n        Show symbol filled

  The following symbols are available for scatter plots:
    -1        Joins the points with a solid line
    -2        Joins the points with a dashed line
    -3        Joins the points with a dotted line
    -4        Joins the points with a dash-dot line
    -5        HIGZ line style 12 - a dashed line
    -6        HIGZ line style 13 - a dash-dot line
    -7        HIGZ line style 14 - a widely spaced dotted line
    -8        HIGZ line style 15 - a dotted line
     1-10     One dot per point
    10-19     As for histograms
    20-49     As for 10-19
    -n        Show symbol filled

  The following symbols are available for 2-dimensional histograms:
    -1        .,1,2,3,...X,Y,Z
    -2        Number of entries i.e. table form
     1-10     Randomized dots, where the number of dots is equal to
              the number of entries
    10-19     Area of symbol is proportional to number of entries in
              the bin
    20-49     As for 10-19
    -n        Show symbol filled

  If the minimum weight is negative and the maximum weight is positive
  for 2-D histograms and you use a symbol number greater than 10 or
  less than -10 you will get the symbol for positive weights and its
  inverse for negative weights. This mode is also used for displaying
  the result of a 2-D fit. This mode is only used if either the lower
  or upper plotting limit is 0.0. Use the `SET Z LIMIT' command to set
  the limits. Otherwise only those entries within
  the specified range are shown.

  2-D histograms can also be plotted using the `LEGO' or `SURFACE'
  commands or preferably using the interface to the HIGZ IGTABL
  routines, `2DIM' or `IGTABLE'.

  I use the  HIGZ circle routine to draw  circles. It is also possible
  to  use large dots (symbol 10   or -10) and  set  the dot scale size
  using the `SET DSIZE' command. A scale factor of 10 or 20 is usually
  good. Note  that   you only see the  big   dots when you  print  the
  picture.

