[R-pkgs] Formula 1.0-0: Model formulas with multiple parts and responses

From: Achim Zeileis <Achim.Zeileis_at_r-project.org>
Date: Tue, 06 Apr 2010 16:12:59 +0200 (CEST)

Dear useRs,

version 1.0-0 of the "Formula" package has just been released on CRAN


accompanied by an article in the Journal of Statistical Software


It provides simple infrastructre for processing formulas like

   y ~ x1 + x2 | z1 + z2

where there are two groups of explanatory variables, e.g., pertaining to separation equations for mean and variance or to regressors and instruments etc. Furthermore formulas with multiple repsonses are supported such as

   y1 + y2 ~ x

which has a bivariate reponse with potentially different classes, e.g., factors, numeric, Survival etc.

Best wishes,

R-packages mailing list
https://stat.ethz.ch/mailman/listinfo/r-packages Received on Wed 07 Apr 2010 - 00:16:26 EST

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