Skip to Content

Recommended

spatial

Functions for kriging and point pattern analysis.

nnet

Software for feed-forward neural networks with a single hidden layer, and for multinomial log-linear models.

class

Various functions for classification.

MASS

Functions and datasets to support Venables and Ripley, 'Modern Applied Statistics with S' (4th edition, 2002).

survival

survival analysis: descriptive statistics, two-sample tests, parametric accelerated failure models, Cox model. Delayed entry (truncation) allowed for all models; interval censoring for parametric models. Case-cohort designs.

rpart

Recursive partitioning and regression trees

nlme

Fit and compare Gaussian linear and nonlinear mixed-effects models.

mgcv

Routines for GAMs and other generalized ridge regression with multiple smoothing parameter selection by GCV, REML or UBRE/AIC. Also GAMMs. Includes a gam() function.

lattice

Lattice is a powerful and elegant high-level data visualization system, with an emphasis on multivariate data, that is sufficient for typical graphics needs, and is also flexible enough to handle most nonstandard requirements. See ?Lattice for an introduction.

foreign

Functions for reading and writing data stored by some versions of Epi Info, Minitab, S, SAS, SPSS, Stata, Systat and Weka and for reading and writing some dBase files.