Displaying 1 result from an estimated 1 matches for "matb_want".
Did you mean:
matb_wanted
2009 Jun 20
1
how to apply the dummy coding rule in a dataframe with complete factor levels to another dataframe with incomplete factor levels?
...9;)))
#dfB's factor variables have less number of levels
#use model.matrix on dfA
(matA<-model.matrix(~f1+f2,data=dfA))
#use model.matrix on dfB
(matB<-model.matrix(~f1+f2,data=dfB))
#I actaully like to dummy code dfB using the dummy coding rule defined in
model.matrix(~f1+f2,data=dfA))
#matB_wanted is below
(matB_wanted<-rbind(c(1,0,0,0,0),c(1,1,0,1,0),c(1,1,0,1,0)) )
colnames(matB_wanted)<-colnames(matA)
matB_wanted
Can someone kindly show me how to get matB_wanted?
Many thanks in advance!
-Sean
[[alternative HTML version deleted]]