properties set for GA Plot objects via Set_DATA_Property/Get_DATA_Property methods

XName	       ; name of the xdata.
YName	       ; name of the ydata.
maxpts	       ; maximum number of points in resampling (see GA_DATA::ResampleData)
resample       ; indicies over which to resample
flagAutoLabel  ; if set, the YNAME of the data is determined from the GA_SIGNAL
	       ;    object used by the GA_DATA object (see below)
label	       ; if specified, overrides YNAME as label displayed in a plot legend (see ::GetLabel())
Xsize	       ; Info from the SIZE function,allow 2D
Ysize	       ; Info from the SIZE function.
marker	       ; Pointer to marked points for special use.
color	       ; color associated with the data.
symbol	       ; symbol associated with the data.
symsize	       ; symbol size.
symfrac	       ; fraction of symbols to plot
symfill	       ; 0 = hollow symbols, 1 = filled symbols
linestyle      ; linestyle associated with the data.
linestylelist  ; list of different line styles
hide	       ; Flag to plot or not plot this data
selected       ; Flag - if set, this data object is selected
subscript      ; subscripts of selected data points.
yscale	       ; linear scaling factor of YData.
xscale	       ; linear scaling factor of XData.
	       ;   NOTE 			  
	       ;     xscale is applied to the data in Xvector only in the
	       ;     Draw and GetXData method.  This is different than yscale,
	       ;     which actually is used to change the data in Yvector.  Use
	       ;     of yscale with the GA_SIGNAL/GA_CACHE system is therefore
	       ;     dangerous, as applying a yscale to a data object created from
	       ;     a given signal will affect all other data objects from the 
	       ;     same signal.
editmode       ; flag to indicate the data editing mode.
	       ;   0-no constrain			    
	       ;   1-interpolate				 
	       ;   2-shift
sorted         ; Flag : 1/-1 a/descending X, 0 nonsorted X.
errorbar       ; Pointer to an errorbar vector. +/- err/2.
plot	       ; GA_PLOT to which this object belongs
properties3d   ; 
status	       ; status of data contained within - if data object 
	       ;    uses signal object, and the signal object data
	       ;    is invalid (because of bad expression or shot),
	       ;    status tells the draw method not to draw.
	       ;    For data objects created with user-supplied arrays,
	       ;    status is always TRUE.
text:ptr_new   ; text annotations are stored here.
numText	       ; number of text annotations 	       
;;                ; marker information added by Jeff Schachter 2000.08.28
markColor      ; color to use for marked points
markSymbol     ; symbol to use for marked points
markFill       ; fill or do not fill marked points
markLabels     ; labels for markers
markSize       ; charsize of marklabels,defaults to symsize

keywords just to Set_Data_Property:

AUTORANGE      ; Set to reset the data range automatically.
DRAW	       ; Set to re-draw all datasets.

DETAILS:
--------

  symbol - 0 = circle
  	   1 = square
  	   2 = diamond
  	   3 = upward-facing triange
  	   4 = downward-facing triange
  	   5 = 4-pt star
  	   6 = 5-pt star
  	   7 = dot
  	   8 = arrow
  	   9 = plus sign
  	   10 = X