Gamma & Lognormal Model

Dear, 

I'm very new to R Gui and I have to make an assignment on Gamma Regressions. 
Surfing on the web doesn't help me very much so i hope this forum may be a
step forward. 

The question sounds as follows: 
The data set is in the library MASS
first install library(MASS)
then type data(mammals)
attach(mammals)

Assignment: 
Fit the gamma model and lognormal model for the mammals data. 

I appreciate any help you can provide. 

Best Wishes,
Louisa

View this message in context: http://r.789695.n4.nabble.com/Gamma-Lognormal-Model-tp3165408p3165408.html
Sent from the R help mailing list archive at Nabble.com.