The programming language of SAS/IML Studio is called IMLPlus. IMLPlus is an extension of SAS/IML that contains additional programming features. IMLPlus combines the flexibility of programming in the SAS/IML language with the power to call SAS procedures and to create and modify dynamically linked statistical graphics. The IMLPlus language is described in Chapter 5.

The IMLPlus language is object-oriented. For example, to create a scatter plot, you instantiate an object of the ScatterPlot class. To modify the scatter plot, you call methods that are in the ScatterPlot class or in any base class. Classes and methods are described in Chapter 6; creating an IMLPlus graph is described in Chapter 7.

This appendix presents tables that contain IMLPlus methods discussed in this book and also functions that were not explicitly used in this book but that are used often in practice. This appendix also contains a section that summarizes how to submit SAS statements or R statements from SAS/IML Studio.

The most important class in the IMLPlus language is the DataObject class. The DataObject class is used to manage an in-memory copy of data. The DataObject class contains methods that query, retrieve, and manipulate the data. The class also manages graphical information about observations such as the shape and color of markers, the selected state of observations, and whether observations are displayed in plots or are excluded.

Table C.1 lists frequently used methods in the DataObject class. You can view the complete set of DataView methods from the SAS/IML Studio online Help. Choose Help Help Topics and then expand the IMLPlus Class Reference DataObject section.

The DataView class is the base class for the DataTable class and the Plot class. You cannot instantiate a DataView object, since there is not a "Create" method in the class, but you can call methods in this class from any data table and any plot.

The most frequently used methods in this class are related to positioning or showing a window. Less common methods include the methods related to action menu, which are discussed in Chapter 16, "Interactive Techniques." Table C.2 lists frequently used methods.

You can view the complete set of DataView methods from the SAS/IML Studio online Help. Choose Help Help Topics and then expand the IMLPlus Class Reference DataView section.

The Plot class is a base class for all plots. You cannot instantiate a Plot object, since there is not a "Create" method in the class, but you can call methods in this class from any plot.

The most frequently used methods in this class are related to modifying plot attributes or to drawing on a plot, as discussed in Chapter 9, "Drawing on Graphs." You can view the complete set of DataView methods from the SAS/IML Studio online Help. Choose Help Help Topics and then expand the IMLPlus Class Reference DataView section.

Table C.3 lists methods that are associated with getting and setting properties of a graph's axis. The first argument to each method is a keyword that specifies the axis. Valid values are XAXIS, YAXIS, or (in some cases) ZAXIS. Except for the SetAxisViewRange method (which is defined in the Plot2D class), these methods are all in the Plot class.

Table C.4 lists methods that draw lines, polygons, text, and other figures on a graph. The methods are provided by the Plot class. See Chapter 9, "Drawing on Graphs."

Table C.5 lists other frequently used methods. Except for the SetGraphAreaMargins method (which is defined in the Plot2D class), these methods are all in the Plot class.

In addition to the methods in the DataView and Plot classes, each kind of graph has methods that create and modify the graph. This section presents frequently used methods for the plot types discussed in this book. You can view the complete set of methods for any IMLPlus class from the SAS/IML Studio online Help. Choose Help Help Topics and then expand the IMLPlus Class Reference section.

You can call any SAS procedure, DATA step, or macro from within an IMLPlus program. Simply enclose the SAS statements between the SUBMIT and ENDSUBMIT statements, as shown in the following example:

submit;                                     /* begin SUBMIT block  */
data a;                                     /* run a DATA step     */
   do x = 1 to 10;
      y = x + rannor(1);
      output;
   end;
run;

proc reg data=a;                            /* run a procedure     */
   model y = x;
quit;
endsubmit;                                  /* end SUBMIT block    */

You can pass parameters into SUBMIT blocks as described in Section 4.4.

R is an open-source language and environment for statistical computing. You can call R functions from an IMLPlus program provided that you have installed a 32-bit Windows version of R on the same PC that runs SAS/IML Studio. Enclose the R statements between the SUBMIT and ENDSUBMIT statements. The SUBMIT statement must contain the R option, as shown in the following example:

submit / R;
lm(Height ~ Girth, data=trees)
endsubmit;

You can pass parameters into SUBMIT blocks as described in Section 4.4. The mechanism is the same for calling R functions as it is for executing SAS statements.