# Information on the cow data in file cows.txt # The file cows.txt has data from an experiment performed on 50 cows. The variables have the following meaning: # #treatment: categorical variable for treatment level. 0 is control, low is 0.1, medium is 0.2, and high is 0.3. # #level: amount of an additive in the cow feed. 0 is control, and 0.1,0.2,0.3 are three treatment levels # #pre-treatment variables: # #lactation: # of times the cow has lactated #age: age of the cow (in months) #initial.weight: weight of the cow (in pounds) # #post-treatment variables: # #dry: mean daily dry matter consumed #milk: mean daily milk product #fat: % milk fat #etc. # mean daily milk fat = milk*fat # Annette (2010) helps out with units level is likely mg of additive per kg of feed dry is likely daily kg of dry matter consumed milk is likely pounds of milk produced per day (depends on the breed)