GAMs with GCV/AIC/REML smoothness estimation and GAMMs by PQL


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Documentation for package ‘mgcv’ version 1.6-1

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A B C D E F G I L M N P R S T U V

-- --

mgcv-package GAMs with GCV/AIC/REML smoothness estimation and GAMMs by REML/PQL

-- A --

adaptive.smooth Adaptive smooths in GAMs
anova.gam Hypothesis tests related to GAM fits

-- B --

bam Generalized additive models for very large datasets

-- C --

choose.k Basis dimension choice for smooths
coef.pdIdnot Overflow proof pdMat class for multiples of the identity matrix
coef.pdTens Functions implementing a pdMat class for tensor product smooths
corMatrix.pdIdnot Overflow proof pdMat class for multiples of the identity matrix
cSplineDes Evaluate cyclic B spline basis
cubic.regression.spline Penalized Cubic regression splines in GAMs
cyclic.cubic.spline Penalized Cubic regression splines in GAMs
cyclic.p.spline P-splines in GAMs

-- D --

Dim.pdIdnot Overflow proof pdMat class for multiples of the identity matrix

-- E --

exclude.too.far Exclude prediction grid points too far from data
extract.lme.cov Extract the data covariance matrix from an lme object
extract.lme.cov2 Extract the data covariance matrix from an lme object

-- F --

fix.family.link Modify families for use in GAM fitting
fix.family.ls Modify families for use in GAM fitting
fix.family.var Modify families for use in GAM fitting
fixDependence Detect linear dependencies of one matrix on another
formula.gam GAM formula
formXtViX Form component of GAMM covariance matrix
full.score GCV/UBRE score for use within nlm
function.predictors Linear functionals of a smooth in GAMs

-- G --

gam Generalized additive models with integrated smoothness estimation
gam.check Some diagnostics for a fitted gam model
gam.control Setting GAM fitting defaults
gam.convergence GAM convergence and performance issues
gam.fit GAM P-IRLS estimation with GCV/UBRE smoothness estimation
gam.fit3 P-IRLS GAM estimation with GCV & UBRE/AIC or RE/ML derivative calculation
gam.models Specifying generalized additive models
gam.outer Minimize GCV or UBRE score of a GAM using 'outer' iteration
gam.performance GAM convergence and performance issues
gam.selection Generalized Additive Model Selection
gam.side Identifiability side conditions for a GAM
gam2derivative Objective functions for GAM smoothing parameter estimation
gam2objective Objective functions for GAM smoothing parameter estimation
gamm Generalized Additive Mixed Models
gamObject Fitted gam object
gamSim Simulate example data for GAMs
get.var Get named variable or evaluate expression from list or data.frame

-- I --

influence.gam Extract the diagonal of the influence/hat matrix for a GAM
initial.sp Starting values for multiple smoothing parameter estimation
interpret.gam Interpret a GAM formula

-- L --

ldTweedie Log Tweedie density evaluation
linear.functional.terms Linear functionals of a smooth in GAMs
logDet.pdIdnot Overflow proof pdMat class for multiples of the identity matrix
logLik.gam Extract the log likelihood for a fitted GAM
ls.size Size of list elements

-- M --

magic Stable Multiple Smoothing Parameter Estimation by GCV or UBRE, with optional fixed penalty
magic.post.proc Auxilliary information from magic fit
mgcv Multiple Smoothing Parameter Estimation by GCV or UBRE
mgcv.control Setting mgcv defaults
model.matrix.gam Extract model matrix from GAM fit
mono.con Monotonicity constraints for a cubic regression spline
mroot Smallest square root of matrix

-- N --

negbin GAM negative binomial family
new.name Obtain a name for a new variable that is not already in use
notExp Functions for better-than-log positive parameterization
notExp2 Alternative to log parameterization for variance components
notLog Functions for better-than-log positive parameterization
notLog2 Alternative to log parameterization for variance components
null.space.dimension The basis of the space of un-penalized functions for a TPRS

-- P --

p.spline P-splines in GAMs
pcls Penalized Constrained Least Squares Fitting
pdConstruct.pdIdnot Overflow proof pdMat class for multiples of the identity matrix
pdConstruct.pdTens Functions implementing a pdMat class for tensor product smooths
pdFactor.pdIdnot Overflow proof pdMat class for multiples of the identity matrix
pdFactor.pdTens Functions implementing a pdMat class for tensor product smooths
pdIdnot Overflow proof pdMat class for multiples of the identity matrix
pdMatrix.pdIdnot Overflow proof pdMat class for multiples of the identity matrix
pdMatrix.pdTens Functions implementing a pdMat class for tensor product smooths
pdTens Functions implementing a pdMat class for tensor product smooths
persp.gam Visualization of GAM objects
place.knots Automatically place a set of knots evenly through covariate values
plot.gam Default GAM plotting
predict.gam Prediction from fitted GAM model
Predict.matrix Prediction methods for smooth terms in a GAM
Predict.matrix.cr.smooth Predict matrix method functions
Predict.matrix.cs.smooth Predict matrix method functions
Predict.matrix.cyclic.smooth Predict matrix method functions
Predict.matrix.pspline.smooth Predict matrix method functions
Predict.matrix.tensor.smooth Predict matrix method functions
Predict.matrix.tprs.smooth Predict matrix method functions
Predict.matrix.ts.smooth Predict matrix method functions
Predict.matrix2 Prediction methods for smooth terms in a GAM
PredictMat Prediction/Construction wrapper functions for GAM smooth terms
print.anova.gam Hypothesis tests related to GAM fits
print.gam Print a Generalized Additive Model object.
print.summary.gam Summary for a GAM fit

-- R --

residuals.gam Generalized Additive Model residuals
rig Generate inverse Gaussian random deviates

-- S --

s Defining smooths in GAM formulae
signal.regression Linear functionals of a smooth in GAMs
smooth.construct Constructor functions for smooth terms in a GAM
smooth.construct.ad.smooth.spec Adaptive smooths in GAMs
smooth.construct.cc.smooth.spec Penalized Cubic regression splines in GAMs
smooth.construct.cp.smooth.spec P-splines in GAMs
smooth.construct.cr.smooth.spec Penalized Cubic regression splines in GAMs
smooth.construct.cs.smooth.spec Penalized Cubic regression splines in GAMs
smooth.construct.ps.smooth.spec P-splines in GAMs
smooth.construct.tensor.smooth.spec Tensor product smoothing constructor
smooth.construct.tp.smooth.spec Penalized thin plate regression splines in GAMs
smooth.construct.ts.smooth.spec Penalized thin plate regression splines in GAMs
smooth.construct2 Constructor functions for smooth terms in a GAM
smooth.terms Smooth terms in GAM
smoothCon Prediction/Construction wrapper functions for GAM smooth terms
solve.pdIdnot Overflow proof pdMat class for multiples of the identity matrix
sp.vcov Extract smoothing parameter estimator covariance matrix from (RE)ML GAM fit
step.gam Alternatives to step.gam
summary.gam Summary for a GAM fit
summary.pdIdnot Overflow proof pdMat class for multiples of the identity matrix
summary.pdTens Functions implementing a pdMat class for tensor product smooths

-- T --

te Define tensor product smooths in GAM formulae
tensor.prod.model.matrix Utility functions for constructing tensor product smooths
tensor.prod.penalties Utility functions for constructing tensor product smooths
tprs Penalized thin plate regression splines in GAMs
Tweedie GAM Tweedie family

-- U --

uniquecombs find the unique rows in a matrix
user.defined.smooth Constructor functions for smooth terms in a GAM

-- V --

vcov.gam Extract parameter (estimator) covariance matrix from GAM fit
vis.gam Visualization of GAM objects