PCA Procedure

The variable in the WEIGHT statement is used as a weight to perform a weighted analysis of the data. Observations that have nonpositive or missing weights are not included in the analysis. The values of the WEIGHT variable can be nonintegral and are not truncated. When you omit the WEIGHT statement, all observations that are used in the analysis are assigned a weight of 1.

The WEIGHT statement is not supported if you specify METHOD=ITERGS, METHOD=NIPALS, or METHOD=RANDOM in the PROC PCA statement.