factor level issue after subsetting

Tue, Nov 1, 2011 2:59 PM

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Schreiber, Stefan factor level issue after subsetting Nov 1 Nordlund, Dan (DSHS/RDA) factor level issue after subsetting Nov 1 Justin Haynes factor level issue after subsetting Nov 1 Felipe Carrillo factor level issue after subsetting Nov 1 Schreiber, Stefan factor level issue after subsetting Nov 1