mgcv package - RDocumentation

fix.family.link

Modify families for use in GAM fitting and checking

Predict.matrix.cr.smooth

Predict matrix method functions

formXtViX

Form component of GAMM covariance matrix

columb

Reduced version of Columbus OH crime data

gamObject

Fitted gam object

smooth.construct.ad.smooth.spec

Adaptive smooths in GAMs

smooth.construct.so.smooth.spec

Soap film smoother constructer

new.name

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

gam.selection

Generalized Additive Model Selection

gam.fit3

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

plot.gam

Default GAM plotting

fs.test

FELSPLINE test function

sp.vcov

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

residuals.gam

Generalized Additive Model residuals

magic

Stable Multiple Smoothing Parameter Estimation by GCV or UBRE

random.effects

Random effects in GAMs

smooth.construct.ds.smooth.spec

Low rank Duchon 1977 splines

smooth.construct.fs.smooth.spec

Factor smooth interactions in GAMs

Rrank

Find rank of upper triangular matrix

print.gam

Print a Generalized Additive Model object.

te

Define tensor product smooths or tensor product interactions in GAM formulae

gam

Generalized additive models with integrated smoothness estimation

gam.fit

GAM P-IRLS estimation with GCV/UBRE smoothness estimation

linear.functional.terms

Linear functionals of a smooth in GAMs

negbin

GAM negative binomial family

smooth.construct.t2.smooth.spec

Tensor product smoothing constructor

choose.k

Basis dimension choice for smooths

bam

Generalized additive models for very large datasets

exclude.too.far

Exclude prediction grid points too far from data

bam.update

Update a strictly additive bam model for new data.

gamm

Generalized Additive Mixed Models

interpret.gam

Interpret a GAM formula

smooth.terms

Smooth terms in GAM

smooth.construct.ps.smooth.spec

P-splines in GAMs

tensor.prod.model.matrix

Utility functions for constructing tensor product smooths

gam2objective

Objective functions for GAM smoothing parameter estimation

initial.sp

Starting values for multiple smoothing parameter estimation

mgcv-package

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

pcls

Penalized Constrained Least Squares Fitting

smooth.construct

Constructor functions for smooth terms in a GAM

Tweedie

GAM Tweedie family

gam.convergence

GAM convergence and performance issues

fixDependence

Detect linear dependencies of one matrix on another

gamSim

Simulate example data for GAMs

logLik.gam

Extract the log likelihood for a fitted GAM

full.score

GCV/UBRE score for use within nlm

influence.gam

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

pen.edf

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

gam.side

Identifiability side conditions for a GAM

notExp

Functions for better-than-log positive parameterization

vis.gam

Visualization of GAM objects

pdIdnot

Overflow proof pdMat class for multiples of the identity matrix

magic.post.proc

Auxilliary information from magic fit

place.knots

Automatically place a set of knots evenly through covariate values

qq.gam

QQ plots for gam model residuals

polys.plot

Plot geographic regions defined as polygons

smoothCon

Prediction/Construction wrapper functions for GAM smooth terms

inSide

Are points inside boundary?

in.out

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

ldTweedie

Log Tweedie density evaluation

null.space.dimension

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

smooth.construct.sos.smooth.spec

Splines on the sphere

extract.lme.cov

Extract the data covariance matrix from an lme object

s

Defining smooths in GAM formulae

gam.check

Some diagnostics for a fitted gam model

smooth.construct.mrf.smooth.spec

Markov Random Field Smooths

mroot

Smallest square root of matrix

smooth.construct.cr.smooth.spec

Penalized Cubic regression splines in GAMs

smooth.construct.tp.smooth.spec

Penalized thin plate regression splines in GAMs

Predict.matrix

Prediction methods for smooth terms in a GAM

anova.gam

Approximate hypothesis tests related to GAM fits

formula.gam

GAM formula

predict.gam

Prediction from fitted GAM model

smooth.construct.tensor.smooth.spec

Tensor product smoothing constructor

vcov.gam

Extract parameter (estimator) covariance matrix from GAM fit

gam.models

Specifying generalized additive models

gam.outer

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

ls.size

Size of list elements

mono.con

Monotonicity constraints for a cubic regression spline

model.matrix.gam

Extract model matrix from GAM fit

t2

Define alternative tensor product smooths in GAM formulae

concurvity

GAM concurvity measures

notExp2

Alternative to log parameterization for variance components

predict.bam

Prediction from fitted Big Additive Model model

get.var

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

rTweedie

Generate Tweedie random deviates

cSplineDes

Evaluate cyclic B spline basis

gam.control

Setting GAM fitting defaults

Predict.matrix.soap.film

Prediction matrix for soap film smooth

smooth.construct.re.smooth.spec

Simple random effects in GAMs

mgcv-parallel

Parallel computation in mgcv.

step.gam

Alternatives to step.gam

mgcv-FAQ

Frequently Asked Questions for package mgcv

summary.gam

Summary for a GAM fit

rig

Generate inverse Gaussian random deviates

slanczos

Compute truncated eigen decomposition of a symmetric matrix

gam.vcomp

Report gam smoothness estimates as variance components

pdTens

Functions implementing a pdMat class for tensor product smooths

spasm.construct

Experimental sparse smoothers

uniquecombs

find the unique rows in a matrix

mgcv (version 1.7-28)

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

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Functions in mgcv (1.7-28)