Data Set for CHAPTER 2

To view or download moths.dta or its corresponding description file moths.inf, use the Save As or Save this Link As options.

Here are some data on an outbreak of the gypsy moth, which devastated forests in Massachusetts in the US. Rather than count the number of moths, the number of acres defoliated by the moths was counted. This data set was supplied by Chuck Schwalbe, U.S. Dept of Agriculture, to the Exploring Data website at http://curriculum.qed.qld.gov.au/kla/eda/.

[image of moths.dta]
1st col 2nd col
1978 63042
1979 226260
1980 907075
1981 2826095