Modeling and Multivariate Methods - SAS

502 Performing Discriminant Analysis Chapter 20
Commands and Options
Figure 20.9 Specify Prior Probabilities Dialog
Consider New Levels is used when you have some points that may not fit any known group, but instead
may be from an unscored, new group.
Save Discrim Matrices creates a global list (DiscrimResults) for use in the JMP scripting language. The
list contains a list of YNames, a list of XNames, a list of XValues, a matrix of YMeans, and a matrix of
YPartialCov (covariances). An example from the iris data DiscrimResults is
{YNames = {"Sepal length", "Sepal width", "Petal length", "Petal Width"},
XName = "Species", XValues = {"setosa", "versicolor", "virginica"}, YMeans
= [5.005999999999999 3.428000000000001 1.462 0.2459999999999999, 5.936 2.77
4.26 1.326, 6.587999999999998 2.974 5.552 2.026], YPartialCov =
[0.2650081632653061 0.09272108843537413 0.1675142857142858
0.03840136054421769, 0.09272108843537413 0.1153877551020407
0.055243537414966 0.03271020408163266, 0.1675142857142858 0.055243537414966
0.1851877551020409 0.04266530612244898, 0.03840136054421769
0.03271020408163266 0.04266530612244898 0.04188163265306122]}
Get Discrim Matrices, only available through scripting, obtains the same values as Save Discrim
Matrices, but returns them to the caller rather than storing them in the data table.
Show Within Covariances shows or hides the Covariance Matrix report. The report for this example is
shown in Figure 20.10.
Figure 20.10 Covariance Matrix Report