sperm.comp2 {gamair} | R Documentation |
Data relating average number of sperm ejaculated per copulation to physical characterisics of partners involved, for 24 heterosexual couples from Manchester, UK.
data(sperm.comp2)
A data frame with 10 columns and 24 rows. The columns are:
sperm.comp1
.In the source article, these data are used to argue that males invest more reproductive effort in heavier females, on the basis of regression modelling. It is worth checking for outliers.
Baker, RR and Bellis M.A. (1993) `Human sperm competition: ejaculate adjustment by males and the function of masturbation'. Animal behaviour 46:861-885