Our first case focuses on the goal of predicting the water yield (in inches) of the Snake River Watershed in Wyoming, USA, as a function of the water content of the year's snowfall. This forecast will be useful in managing the water flow and reservoir levels as the Snake River provides much-needed irrigation water for the farms and ranches of several western states. The snake dataset is available in the alr3 package (note that alr stands for applied linear regression):
> install.packages("alr3") > library(alr3) > data(snake) > dim(snake) [1] 17 2 > head(snake) X Y 1 23.1 10.5 2 32.8 16.7 3 31.8 18.2 4 32.0 17.0 5 30.4 16.3 6 24.0 10.5
Now that we have 17 observations, data exploration can begin. But first, let's ...
