The 3rd exercise has been posted on the the companion web page. This exercise covers how to create the point biserial correlation coefficient in the R statistical computing program.

This exercise is the R counterpart to exercise CH02EX02 in the book;however it is the third exercise on this blog. The next post will cover how to obtain the phi-coefficient and the rank correlation. Use the data set C02030DT.txt from your book's CD.

7 months ago

## No comments:

Post a Comment