Comparison with SAS/INSIGHT Software
SAS/IML Studio and SAS/INSIGHT® Software have the same goal: to be a tool for data exploration and analysis. Both have dynamically linked statistical graphics. Both come with pre-written statistical analyses for analyzing distributions, regression models, and multivariate relationships.
Figure 1.2 shows a typical SAS/INSIGHT analysis. Figure 1.3 shows the same analysis performed in SAS/IML Studio. You can see that the analyses are qualitatively similar.
Figure 1.2: A SAS/INSIGHT Analysis
Figure 1.3: A Comparable SAS/IML Studio Analysis
However, there are three major differences between the two products. The first is that SAS/IML Studio runs on a PC in the Microsoft Windows operating environment. It is client software that can connect to SAS servers. The SAS server might be running on a different computer than SAS/IML Studio. In contrast, SAS/INSIGHT software runs on the same computer on which the SAS software is installed.
A second major difference is that SAS/IML Studio is programmable, and therefore extensible. SAS/INSIGHT software contains standard statistical analyses that are commonly used in data analysis, but you cannot create new analyses. In contrast, you can write programs in SAS/IML Studio that call any licensed SAS procedure, and you can include the results of that procedure in graphics, tables, and data sets. Because of this, SAS/IML Studio is sometimes referred to as the “programmable successor to SAS/INSIGHT software.”
A third major difference is that the SAS/IML Studio statistical graphics are programmable. You can add legends, curves, and other features to the graphics in order to better analyze and visualize your data.
SAS/IML Studio contains many features that are not available in SAS/INSIGHT software. General features that are unique to SAS/IML Studio include the following:
SAS/IML Studio provides the following features of data views (tables and plots) which are not included in SAS/INSIGHT software:
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modern dialog boxes with a native Windows look and feel
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a line plot in which the lines can be defined by specifying a single
Xvariable and a singleYvariable, and one or more grouping variables -
a polygon plot that can be used to build interactive regions such as maps
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programmatic methods to draw legends, curves, or other decorations on any plot
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programmatic methods to attach a menu to any plot. After the menu is selected, a user-specified program is run.
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arbitrary unions and intersections of observations selected in different views
SAS/IML Studio also provides the following analyses and options that are not included in SAS/INSIGHT software:
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a programming language that can call any licensed SAS analytical procedure and any SAS/IML function or subroutine.
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outlier detection in contaminated Gaussian data
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robust regression models and detection of outliers and high-leverage observations
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the generalized linear model with a multinomial response
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graphical results for the analysis of logistic models with one continuous effect and a small number of levels for classification effects
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parametric and nonparametric methods of discriminant analysis
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common factor analysis for interval variables
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correspondence analysis for nominal variables
Features of SAS/INSIGHT software that are not included in SAS/IML Studio are presented in Appendix B: SAS/INSIGHT Features Not Available in SAS/IML Studio.