This example is taken from the section Getting Started: PLS Procedure in ChapterĀ 76: The PLS Procedure. The following statements create a SAS data set that contains measurements of biological activity in the Baltic Sea:
data Sample; input obsnam $ v1-v27 ls ha dt @@; datalines; EM1 2766 2610 3306 3630 3600 3438 3213 3051 2907 2844 2796 2787 2760 2754 2670 2520 2310 2100 1917 1755 1602 1467 1353 1260 1167 1101 1017 3.0110 0.0000 0.00 EM2 1492 1419 1369 1158 958 887 905 929 920 887 800 ... more lines ... ;
The following statements run PROC PLS:
ods graphics on; proc pls data=sample cv=split cvtest(seed=104); model ls ha dt = v1-v27; run;
By default, the procedure produces a plot for the cross validation analysis and a correlation loading plot (see FigureĀ 21.8).