c2compnames {BSagri} | R Documentation |
Define row names of a contrast matrix, depending on its column names, as can be necessary for contrasts matrices. Currently, two options to do that are available.
c2compnames(cmat, ntype = "aggr")
cmat |
a contrast matrix |
ntype |
a single character string,
defining how to build names from the column names of cmat ,
currently onls "aggr"
(aggregates names of groups with negative and positive coefficients),
and "sequ"
|
Improvements of this function are welcome!
The input matrix cmat, with its row names replaced.
contrMat
in multcomp to define contrast matrices of different types
# names for interaction contrasts: n1<-c(10,10,10,10) names(n1)<-c("A","B","C","D") n2<-c(3,3,3) names(n2)<-c(1,2,3) library(multcomp) CMT1<-contrMat(n1, type="Tukey") CMT2<-contrMat(n2, type="Tukey") IAC<-IAcontrastsCMAT(CMAT1=CMT1, CMAT2=CMT2) c2compnames(IAC, ntype="aggr") c2compnames(IAC, ntype="sequ") ############################### # names for Williams-type contrasts: n1<-c(10,10,10,10) names(n1)<-c("C0","D1","D5","D10") CMW<-contrMat(n1, type="Williams") CMW c2compnames(CMW, ntype="aggr") c2compnames(CMW, ntype="sequ")