Description Usage Format Details Source Examples
This data concerns mean weights of the brains and bodies of 62 species of mammals. The first column contains values of species (Species), the second column is brain weight in grams (Brain), and the third column is body weight in kilograms (Body).
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A data frame with 62 observations on the following 3 variables.
Species
a string vector for species names
Brain
a numeric vector
Body
a numeric vector
The goal is to investigate the linear relationship between the natural logarithm of brain weight and that of body weight, assuming that brain weights are observations from gamma distributions and their means depend on logarithms of body weights.
Skovgaard, L. T. (2009). Confidence Intervals in Generalized Regression Models. Boca Raton, FL : CRC Press.
1 2 | data(data.loggamma)
## maybe str(data.loggamma) ; plot(data.loggamma) ...
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