Below is the code for the graphs:
p1<-ggplot(Train) + geom_point(mapping=aes(x=V3, y=V1, col=V15)) p2<-ggplot(Train) + geom_point(mapping=aes(x=V5, y=V11, col=V15)) p3<-ggplot(Train) + geom_point(mapping=aes(x=V12, y=V13, col=V15)) p4<-ggplot(Train) + geom_point(mapping=aes(x=V1, y=V13, col=V15))

