Butterfat content of milk by breed
Average butterfat content (percentages) of milk for random samples of twenty cows (ten two-year old and ten mature (greater than four years old)) from each of five breeds. The data are from Canadian records of pure-bred dairy cattle.
data(butterfat)
A data frame with 100 observations on the following 3 variables.
Butterfatbutter fat content by percentage
Breeda factor with levels Ayrshire Canadian Guernsey Holstein-Fresian Jersey
Agea factor with levels 2year Mature
Unknown
data(butterfat) ## maybe str(butterfat) ; plot(butterfat) ...
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