mgcv package - RDocumentation

bam

Generalized additive models for very large datasets

cSplineDes

Evaluate cyclic B spline basis

formula.gam

GAM formula

gam.fit3

P-IRLS GAM estimation with GCV & UBRE/AIC or RE/ML derivative calculation

gamm

Generalized Additive Mixed Models

initial.sp

Starting values for multiple smoothing parameter estimation

summary.gam

Summary for a GAM fit

exclude.too.far

Exclude prediction grid points too far from data

Predict.matrix.soap.film

Prediction matrix for soap film smooth

gam.control

Setting GAM fitting defaults

fs.test

FELSPLINE test function

gam.side

Identifiability side conditions for a GAM

influence.gam

Extract the diagonal of the influence/hat matrix for a GAM

null.space.dimension

The basis of the space of un-penalized functions for a TPRS

gam

Generalized additive models with integrated smoothness estimation

print.gam

Print a Generalized Additive Model object.

random.effects

Random effects in GAMs

gam.outer

Minimize GCV or UBRE score of a GAM using `outer' iteration

gam.vcomp

Report gam smoothness estimates as variance components

predict.bam

Prediction from fitted Big Additive Model model

pen.edf

Extract the effective degrees of freedom associated with each penalty in a gam fit

magic.post.proc

Auxilliary information from magic fit

ls.size

Size of list elements

smooth.construct.ad.smooth.spec

Adaptive smooths in GAMs

smooth.construct.so.smooth.spec

Soap film smoother constructer

notExp2

Alternative to log parameterization for variance components

notExp

Functions for better-than-log positive parameterization

pcls

Penalized Constrained Least Squares Fitting

negbin

GAM negative binomial family

uniquecombs

find the unique rows in a matrix

gam.check

Some diagnostics for a fitted gam model

rTweedie

Generate Tweedie random deviates

mgcv-parallel

Parallel computation in mgcv.

step.gam

Alternatives to step.gam

residuals.gam

Generalized Additive Model residuals

vis.gam

Visualization of GAM objects

s

Defining smooths in GAM formulae

gam.fit

GAM P-IRLS estimation with GCV/UBRE smoothness estimation

plot.gam

Default GAM plotting

smooth.construct.tp.smooth.spec

Penalized thin plate regression splines in GAMs

smooth.construct.tensor.smooth.spec

Tensor product smoothing constructor

rig

Generate inverse Gaussian random deviates

Rrank

Find rank of upper triangular matrix

smooth.construct

Constructor functions for smooth terms in a GAM

choose.k

Basis dimension choice for smooths

sp.vcov

Extract smoothing parameter estimator covariance matrix from (RE)ML GAM fit

gam.selection

Generalized Additive Model Selection

te

Define tensor product smooths or tensor product interactions in GAM formulae

fix.family.link

Modify families for use in GAM fitting and checking

smooth.construct.fs.smooth.spec

Factor smooth interactions in GAMs

smoothCon

Prediction/Construction wrapper functions for GAM smooth terms

gam2objective

Objective functions for GAM smoothing parameter estimation

magic

Stable Multiple Smoothing Parameter Estimation by GCV or UBRE

pdIdnot

Overflow proof pdMat class for multiples of the identity matrix

place.knots

Automatically place a set of knots evenly through covariate values

smooth.construct.ds.smooth.spec

Low rank Duchon 1977 splines

logLik.gam

Extract the log likelihood for a fitted GAM

mgcv-package

Mixed GAM Computation Vehicle with GCV/AIC/REML smoothness estimation and GAMMs by REML/PQL

new.name

Obtain a name for a new variable that is not already in use

mgcv-FAQ

Frequently Asked Questions for package mgcv

bam.update

Update a strictly additive bam model for new data.

columb

Reduced version of Columbus OH crime data

spasm.construct

Experimental sparse smoothers

gam.models

Specifying generalized additive models

qq.gam

QQ plots for gam model residuals

interpret.gam

Interpret a GAM formula

gamObject

Fitted gam object

gamSim

Simulate example data for GAMs

predict.gam

Prediction from fitted GAM model

smooth.terms

Smooth terms in GAM

in.out

Which of a set of points lie within a polygon defined region

smooth.construct.ps.smooth.spec

P-splines in GAMs

concurvity

GAM concurvity measures

gam.convergence

GAM convergence and performance issues

Predict.matrix

Prediction methods for smooth terms in a GAM

pdTens

Functions implementing a pdMat class for tensor product smooths

mono.con

Monotonicity constraints for a cubic regression spline

extract.lme.cov

Extract the data covariance matrix from an lme object

fixDependence

Detect linear dependencies of one matrix on another

model.matrix.gam

Extract model matrix from GAM fit

mroot

Smallest square root of matrix

smooth.construct.mrf.smooth.spec

Markov Random Field Smooths

full.score

GCV/UBRE score for use within nlm

ldTweedie

Log Tweedie density evaluation

linear.functional.terms

Linear functionals of a smooth in GAMs

Predict.matrix.cr.smooth

Predict matrix method functions

Tweedie

GAM Tweedie family

formXtViX

Form component of GAMM covariance matrix

smooth.construct.t2.smooth.spec

Tensor product smoothing constructor

anova.gam

Approximate hypothesis tests related to GAM fits

smooth.construct.sos.smooth.spec

Splines on the sphere

vcov.gam

Extract parameter (estimator) covariance matrix from GAM fit

get.var

Get named variable or evaluate expression from list or data.frame

polys.plot

Plot geographic regions defined as polygons

slanczos

Compute truncated eigen decomposition of a symmetric matrix

t2

Define alternative tensor product smooths in GAM formulae

smooth.construct.cr.smooth.spec

Penalized Cubic regression splines in GAMs

inSide

Are points inside boundary?

smooth.construct.re.smooth.spec

Simple random effects in GAMs

tensor.prod.model.matrix

Utility functions for constructing tensor product smooths

mgcv (version 1.7-29)

Mixed GAM Computation Vehicle with GCV/AIC/REML smoothness estimation

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Functions in mgcv (1.7-29)