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DESCRIPTION
proc rangesweep draws a moving range.
The plot is drawn beginning with first data record, working to the last one.
EXAMPLES
See the Gallery Rangesweep page
UNPLOTTABLE DATA
Invalid values are skipped;
the rangesweep will be drawn to connect only the points corresponding to plottable
values. Points lying outside of the plotting area are displayed if possible.
PREREQUISITES
A plotting area must be set up using proc areadef
and proc getdata must be executed to
access or define some data.
The data must be ordered in X.
MODES
This proc can operate in one of these modes:
Y only (points "where they fall"):
By not specifying xfield, range values are shown
at consecutive unit locations in X.
X, Y:
By specifying xfield as well as lofield and hifield,
range values are shown at given X, Y locations in the data.
MANDATORY ATTRIBUTE
The lofield and hifield attributes MUST be specified.
ATTRIBUTES
lofield
dfield
-
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Data field to use for low end of range.
Example: lofield: 1
hifield
dfield
-
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Data field to use for high end of range.
Example: hifield: 2
xfield
dfield
-
-
Data field to use for X values.
If not specified, sequential unit locations in X will be used.
Example: xfield: 1
color
color
-
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Color of the range sweep.
Example: color: powderblue
legendlabel
text
-
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A label to be associated with the current range sweep in the legend.
proc legend must be executed later in order to
render the legend.
Example: legendlabel: Group A
sweeprange xlo [xhi]
-
-
If specified, range will be rendered only at x values falling between
xlo and xhi. xlo and xhi must be plottable
values in X. If xhi is not given then this will control
only the lower bound.
Example: sweeprange: 5 24
xstart
plotvalue
-
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If specified, and if using sequential locations in x (xfield not
specified), determines where in X the range will start.
select
conditional-expression
-
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If specified, the select-expression will be used to determine
whether or not to plot a given row of data.
Example: select: @7 >= @9
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data display engine
Copyright Steve Grubb
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