Added examples in accuracy() documentation.
Changed line styles in pred.plot.default().
Added URL trailing slashes in README.md (CRAN requirement).
Added ().
Fixed small bug in ()
().
Small changes in ()
().
Added body fat datasets: bodyfat.raw, bodyfat and bfan.
Added pred.plot() S3 generic function (and methods).
obs.pred.plot() renamed as pred.plot.default()
(the default method; for regression).
Added pred.plot.factor() (for classification).
S3 generic beta.coef() renamed as scaled.coef(),
with an additional argument scaled.response = TRUE
in the default method.
Added packages used in the book in the Suggests field of DESCRIPTION.