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Selecting A List of Columns
2013 May 17
2
Selecting A List of Columns
...Vars,stringsAsFactors = FALSE) colnames(MSEVars)<-"Vars" NodeImportance<-head(Importance[order(Importance$IncNodePurity,decreasing=TRUE),], 3) NodeVars<-row.names(NodeImportance) NodeVars<-data.frame(NodeVars,stringsAsFactors = FALSE) colnames(NodeVars)<-"Vars" ImportantVars<-rbind(MSEVars,NodeVars) ImportantVars<-unique(ImportantVars) nrow(ImportantVars) ImportantVars<-as.character(ImportantVars) ImportantVars CarsVarsKept<-subset(mtcars,select=ImportantVars) Error in `[.data.frame`(x, r, vars, drop = drop) : undefined columns selected Any help on how...