SAS Macro Programs: hemat

The hemat macro ( get hemat.sas)

HE plots for all pairs of response variables

The HEMAT macro plots the covariance ellipses for a hypothesized (H) effect and for error (E) for all pairs of variables from a MANOVA or multivariate multiple regression.

Method

Usage

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

  %hemat(data=iris, stat=stats, 
         var=SepalLen SepalWid PetalLen PetalWid,
         effect=species);

Parameters

DATA=

Name of the raw data set to be plotted [Default: DATA=_LAST_]

STAT=

Name of OUTSTAT= dataset from PROC GLM

EFFECT=

Name of MODEL effect to be displayed for the H matrix. This must be one of the terms on the right hand side of the MODEL statement used in the PROC GLM or PROC REG step, in the same format that this efffect is labeled in the STAT= dataset. This must be one of the values of the _SOURCE_ variable contained in the STAT= dataset.

VAR=

Names of response variables to be plotted - can be a list or X1-X4 or VARA--VARB [Default: VAR=_NUMERIC_]

NAMES=

Alternative variable names (used to label the diagonal cells.)

M1=

First matrix: either H or H+E [Default: M1=H]

M2=

Second matrix either E or I [Default: M2=E]

SCALE=

Scale factors for M1 and M2. See description in HEPLOT

HTITLE=

Height of variable name in diagonal cells

SYMBOLS=

Not used

COLORS=

Colors for the H and E ellipses [Default: COLORS=BLACK RED]

ANNO=

Annotate diag or off-diag plot [Default: ANNO=NONE]

GTEMP=

Temporary graphics catalog [Default: GTEMP=GTEMP]

KILL=

Delete grtemp when done [Default: KILL=Y]

GOUT=

Name of the graphic catalog [Default: GOUT=GSEG]

Example

%include macros(hemat);        *-- or include in an autocall library;
%include data(iris);

proc glm data=iris outstat=stats;
  class species;
  model SepalLen SepalWid PetalLen PetalWid = species / nouni ss3;
  manova h=species;
  run;

%hemat(data=iris, stat=stats, 
	var=SepalLen SepalWid PetalLen PetalWid,
	effect=species
	);

See also