[Rd] documentation for contrasts and contrasts<- (PR#607)
Thu, 13 Jul 2000 18:39:40 +0200 (MET DST)
The documentation (in ver 1.1) for contrasts and contrasts<- does not list all
the arguments for those functions. In addition to x, the factor whose contrasts
are being extracted or set, contrasts() has the argument 'contrasts=TRUE', and
contrasts<-() has the argument 'how.many'.
It was this latter that had me flummoxed, because I wanted to reparametrize a
model by specifying a full-rank contrast matrix (fitting without an intercept).
R. Woodrow Setzer, Jr. Phone:
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