UNIMPL_CMD ("SELECTPRED", "Select predictor variables")
UNIMPL_CMD ("SPCHART", "Plot control charts")
UNIMPL_CMD ("SPECTRA", "Plot spectral density")
+UNIMPL_CMD ("STEMLEAF", "Plot stem-and-leaf display")
UNIMPL_CMD ("SUMMARIZE", "Univariate statistics")
UNIMPL_CMD ("SURVIVAL", "Survival analysis")
UNIMPL_CMD ("TDISPLAY", "Display active models")