Introduction

This chapter describes the changes and enhancements to SAS/INSIGHT software that were implemented in the Version 7 release. There were no additional changes or enhancements in Version 8. New features in Version 7 include new statistical analyses and enhancements to the graphics.

SAS/INSIGHT software now supports several multivariate statistical techniques, including principal component rotation analysis, canonical correlation analysis, maximum redundancy analysis, and canonical discriminant analysis. It also supports comparison of means. There are also new robust measures of scale and tests for normality for univariate data, as well as tests for differences of means across groups.

New graphical enhancements include surface plots, contour plots, response surfaces, comparison of means circles in the box plots, and color blending of up to five colors. Several methods for surface fitting are provided, including linear interpolation, thin-plate spline, kernel estimation, and using a parametric model.

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