Introduction to Statistics (MAT/SST 115.03 2008S)
The data are now stored in
Rowers04.csv. You can read
them in as follows:
Rowers = read.csv("/home/rebelsky/Stats115/Data/Rowers04.csv")
Refer to the instructions from a previous activity to see how to make
dotplots and how to have R compute a mean and median. In each case,
you want to use the vector
This activity asks you to remove one row (corresponding to Cipollone, the coxswain) and, later, to change the weight of Schroeder. It turns out that you need different tools for the two activities. To delete rows, you use the row selection commands. For example,
Rowers = Rowers[Rowers$Name != "Cipollone",]
To change weight use the
Remember that R pauses while you're editing the data set, so you must close the editing window before doing anything else.
Copyright (c) 2007-8 Samuel A. Rebelsky.
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