SAS Macro Programs: rug

The rug macro ( get rug.sas)

Create annotations for a rug plot along an axis

The RUG macro creates an annotate data set to draw 'rug lines' along an axis in a plot indicating the univariate distribution of a variable.

Usage

The RUG macro is defined with keyword parameters. The arguments may be listed within parentheses in any order, separated by commas. For example:

  %rug(data=foo, var=X1, at=0.05, out=rug1);
  proc gplot data=foo;
     plot Y * X1 / anno=rug1 ... ;

Parameters

DATA=

The name of the input data set [Default: DATA=_LAST_]

VAR=

Name of the variable for rug plot

BY=

Grouping variable: if specified, rugs are produced for each level of the BY= variable

CLASS=

Synonym for BY=

ON=

Axis on which to display the VAR values [Default: ON=X]

AT=

Location of bottom rug lines on axis, in percent coordinates. [Default: AT=0.5]

HT=

Height of rug lines, in percent coordinates. [Default: HT=2]

COLOR=

Color(s) of rug lines. A different color is used for each level of the CLASS= variable. [Default: COLOR=BLACK BLUE RED GREEN]

JITTER=

Amount of random jitter applied to the VAR= values. This is useful when the VAR= values are discrete, and would otherwise overplot. [Default: JITTER=0]

COPY=

The names of any variables to be copied to output dataset

IN=

The name of an optional input annotate data set. If specified, the IN= data set is concatenated with the OUT= data set.

OUT=

Name for output data set [Default: OUT=_RUG_]

Example

%include macros(rug);        *-- or include in an autocall library;

%rug();

See also