**Exploratory and Graphical Methods of Data Analysis**

Michael Friendly

The SAS macro programs described here are available for use on the
Phoenix system under unix and on
SAS for Windows on the PAVLOV server for the Psych Lab.
To make them automatically available on Phoenix, type the command,

setenv SAS_OPTIONS "-autoexec /courses/as/psyc/autoexec.sas"

If you add this line to your .cshrc file, this will be setup each time you
login. This step is unnecessary on PAVLOV
Then to use one (say, BOXPLOT) in your SAS program, simply call the macro as,
for example,
%boxplot(data=nations, var=imr, class=region);

### Programs

The following programs are currently available:

- BIPLOT
- Biplot technique
- BOXANNO
- Marginal boxplot annotations for
scatterplots
- BOXCOX
- Box-Cox transformations for regression
models
- BOXGLM
- Box-Cox transformations for GLMs
- BOXPLOT
- Boxplots and notched boxplots
- CONTOUR
- Elliptical contours for scatterplots
- DOTPLOT
- Dot charts
- INFLPLOT
- Influence plots for regression models
- LOWESS
- Lowess scatterplot smoothing
- NQPLOT
- Normal Q-Q plots
- OUTLIER
- Multivariate outlier detection
- PARTIAL
- Partial regression residual plots
- RESLINE
- Resistant lines by 3-point method, with
transformations
- SCATMAT
- Scatterplot matrices
- STARS
- Star plots
- SYMPLOT
- Symmetry transformation plots

These and other methods for graphical display of data are described
in my book, SAS System for Statistical Graphics, First Edition
available from SAS Institute.
Documentation is available on the WWW at:

Course outline.
Next section.

** © 1995**
Michael Friendly

**Email**<friendly@yorku.ca>