How to plot a subset of a data frame in R?

Question

Is there a simple way to do this in R:

plot(var1,var2, for all observations in the data frame where var3 < 155)

It is possible by creat

Answer 1

This is how I would do it, in order to get in the var4 restriction:

dfr<-data.frame(var1=rnorm(100), var2=rnorm(100), var3=rnorm(100, 160, 10), var4=rnorm(100, 27, 6))
plot( subset( dfr, var3 < 155 & var4 > 27, select = c( var1, var2 ) ) )

Rgds, Rainer