roller {DAAG} | R Documentation |
The roller
data frame has 10 rows and 2 columns.
Different weights of roller were rolled over different parts
of a lawn, and the depression was recorded.
roller
This data frame contains the following columns:
Stewart, K.M., Van Toor, R.F., Crosbie, S.F. 1988. Control of grass grub (Coleoptera: Scarabaeidae) with rollers of different design. N.Z. Journal of Experimental Agriculture 16: 141-150.
plot(roller) roller.lm <- lm(depression ~ weight, data = roller) plot(roller.lm, which = 4)