c2compnames: Define row names of a contrast matrix, depending on its...
In BSagri: Safety Assessment in Agricultural Field Trials

Description Usage Arguments Value See Also Examples

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.

1	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"`

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")