You can specify the following options in the PROC LATTICE statement.
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DATA=SAS-data-set
names the SAS data set to be used by PROC LATTICE. If you omit the DATA= option, the most recently created SAS data set is used.
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COVARIANCE
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COV
calculates sums of products for every possible pair of response variables. A sum of products is given for each source of variation in the analysis of variance table. For each pair of response variables, the one appearing later in the data set (or in the VAR statement) is the covariable.
