leaftemp {DAAG} | R Documentation |
These data consist of measurements of vapour pressure and of the difference between leaf and air temperature.
leaftemp
This data frame contains the following columns:
low
, medium
, high
Katharina Siebke and Susan von Cammerer, Australian National University.
print("Fitting Multiple Lines - Example 7.3") leaf.lm1 <- lm(tempDiff ~ 1 , data = leaftemp) leaf.lm2 <- lm(tempDiff ~ vapPress, data = leaftemp) leaf.lm3 <- lm(tempDiff ~ CO2level + vapPress, data = leaftemp) leaf.lm4 <- lm(tempDiff ~ CO2level + vapPress + vapPress:CO2level, data = leaftemp) anova(leaf.lm1, leaf.lm2, leaf.lm3, leaf.lm4) summary(leaf.lm2) plot(leaf.lm2)