In this video we illustrate how to add text (including mathematical symbols), lines, curves, and other features to a scatter or series plot. Applications include adding a nonparametric lowess fit to…
In this video we show how to use vector-valued specifications for the col= and pch= graphical parameters when calling plot() or some other high level graphical function in R in order to distinguish…
In this video I review the basic ideas of the one-way ANOVA, with emphasis on the model, including both common parameterizations of it: the effects version and the cell-means version. You should have…