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SAS Macro Programs for Statistical Graphics: NQPLOT

$Version: 1.3 (27 Sep 2001)
Michael Friendly
York University

NQPLOT macro ( [download] get nqplot.sas)

NQPLOT produces normal Q-Q plots for single variable. The parameters MU= and SIGMA= determine how the comparison line, representing a perfect fit to a normal distribution, is estimated.

Usage

nqplot is a macro program. A variable name must be supplied for the VAR= parameter.

The arguments may be listed within parentheses in any order, separated by commas. For example: 

%nqplot(data=results, var=residual);

Parameters

DATA=_LAST_
Name of the input data set
VAR=X
Name of the variable to be plotted
OUT=NQPLOT
Name of the output data set
MU=MEDIAN
Estimate of the of mean of the reference normal distribution: Specify MU=MEAN, MU=MEDIAN, or MU=numeric value.
SIGMA=HSPR
Estimate of the standard deviation of the reference normal distribution: Specify SIGMA=STD, SIGMA=HSPR, or SIGMA=numeric value.
STDERR=YES
Plot std errors around curves?
DETREND=YES
Plot detrended version? If DETREND=YES the detrended version is plotted too.
LH=1.5
Height, in character cells, for the axis labels.
ANNO=
Name of an optional input Annotate data set
NAME=NQPLOT
The name assigned to the graph(s) in the graphic catalog.
GOUT=
The name of the graphic catalog used to store the graph(s) for later replay.