Chapter 13 Appendix A References
Richard A. Becker, John M. Chambers and Allan R. Wilks (1988), The New S Language. Chapman & Hall, New York. This book is often called the “Blue Book”.
actually two, but this draft manual predates the methods package.
Evaluation always takes place in an environment. See Scope of variables for more details.
Looping is the repeated evaluation of a statement or block of statements.
U+A0, non-breaking space, and
U+3000, ideographic space.