Graph object: built-in symbols

Symbol	Interpretation
FROM_X	The start value of the Graph's independent (= horizontal axis) variable X. Must be specified explicitly (either as a constant or using an expression) in the source editor's top panel.
TO_X	The end value of the Graph's independent (= horizontal axis) variable X. Must be specified explicitly (either as a constant or using an expression) in the source editor's top panel.
STEPS	The number of discrete values of the independent (= horizontal axis) variable X for which the Graph's output channels are evaluated. Must be specified explicitly (either as a constant or using an expression) in the source editor's top panel.
X	The Graph's independent (= horizontal axis) variable. Graph data sets are created by evaluating all output channels in all sources for the STEPS values of X ranging from FROM_X to TO_X (see above). See also NXS.
SELF	Source-dependent. Identifies the portfolio or the asset associated with the source. Is either a portfolio index (for use with portfolio lookup functions) or an asset index (for use with asset lookup functions), depending on the source type. When the source type is Portfolios: All, a separate set of Graph data is created for each loaded portfolio, with SELF taking on the index value of each portfolio as it's processed. When the source type is Assets: All, a separate set of Graph data is created for each asset in the selected portfolio, with SELF taking on the index value of each asset as it's processed. If the source type is Free, SELF is undefined.
FROM_DATE	The view's start date, specified with the date range controls in the view's toolbar.
TO_DATE	The view's end date, specified with the date range controls in the view's toolbar.
ASSET	Identifies the asset currently selected in the Assets or Quotes view (whichever was opened last). Can be used as the asset index argument with any asset lookup function. For instance, the expression =asset_name(ASSET) will return the asset's name.
PORTFOLIO	Identifies the portfolio currently selected in the Portfolios view. Can be used as the portfolio index argument with any portfolio lookup function. For instance, the expression =portfolio_name(PORTFOLIO) will return the portfolio's name.
GRID	Actually a built-in symbol qualifier (or source identifier), used to access fields in the selected record of the view's Grid object. For instance, the expression =GRID._NAV returns the value of the _NAV field in the Grid's selected record.
ISLOG	TRUE if the Graph's vertical scale is logarithmic, FALSE otherwise. Click Plot > Logarithmic in the Graph's pop-up menu to switch between linear and logarithmic mode.
NXS	The number of X values processed so far in the current Graph data set. In particular, X = FROM_X Þ NXS = 0 X = TO_X Þ NXS = STEPS - 1
NCLOSES	The number of valid (X, Y) data pairs added so far to the current Graph data set.