r - Setting indicator variables to equal 1 or 0 -

i have set higpa equal 1 if gpa greater 3, , if less, higpa must equal 0. using r.

gpa variable in data. higpa not. far have made higpa factor of gpa.

> higpa<-factor(gpa) 

after step lost.

thank help!

you should post example data... so:

gpa <- c(2, 3.68, 2.96, 2.85, 2.67, 3.26, 2.55, 2.84, 3.09, 2.79) 

here's 1 way:

as.numeric(gpa >= 3)  [1] 0 1 0 0 0 1 0 0 1 0 

so can put higpa

higpa <- as.numeric(gpa >= 3) 

if need factor, can factor or as.factor @ end.