xmp13.07 {Devore6} | R Documentation |
The xmp13.07
data frame has 16 rows and 2 columns on the yield
of paddy (a grain farmed in India) versus the time of harvest.
This data frame contains the following columns:
Devore, J. L. (2003) Probability and Statistics for Engineering and the Sciences (6th ed), Duxbury
(1975), ``Determination of biological maturity and effect of harvesting and drying conditions on milling quality of paddy'', J. Agricultural Eng. Research, 353-361
data(xmp13.07) plot(yield ~ days, data = xmp13.07, main = "Compare to Figure 13.11(a), page 579") fm1 <- lm(yield ~ days + I(days^2), data = xmp13.07) summary(fm1) anova(fm1) predict(fm1, list(days = 25), interval = "conf") predict(fm1, list(days = 25), interval = "pred")