| Assignments | Solution keys |
| #11 due Monday May 14. Data sets: nutrient and grassland plant species, earthworms and nitrogen, swine nitrogen balance. | key #11 |
| #10 due April 26. Data set: Lodgepole Pine cones. Files in csv format (columns separated by commas) can be read in R most easily with the function "read.csv". The default bahavior of 'read.csv' is to consider that commans separate columns, and that there is a 'header' (i.e. that the first row does not contain the data but simply the names of the various variables). | key #10 |
| #9 due April 19. Data set in csv format: tsetse learning. | key #9 |
| Assignments | Solution keys |
| #8, due March 29, just before Spring break.
Cichlid fish data set
(for problem 18). There won't be any assigned homework during Spring break, because the second midterm exam is the Tuesday right after Spring break. The solution key will be posted on Friday March 30. Suggested practice problems will also be posted that day. |
key #8 |
| #7, due March 22. Stalkies data set. | key #7 |
| #6 due March 15. Data sets in csv format: vines and clear cuts. | key #6 |
| #5 due March 8. | key #5 |
| Assignments | Solution keys |
| #4 due Feb. 23. There won't be any assigned homework next week, due to the first midterm coming up. The solution key will be posted on Friday Feb. 24. | key #4 |
| #3 due Feb. 16. | key #3 |
| #2 due Feb. 9. | key #2 |
|
#1 due Thursday Feb. 2. Paper on statistical graphics by Jarad Niemi and Andrew Gelman. R code used in lecture 2/2. |
key #1 |