mgcv1.9-1 package

Mixed GAM Computation Vehicle with Automatic Smoothness Estimation

Evaluate cyclic B spline basis

Obtaining derivative w.r.t. linear predictor

Stable evaluation of difference between normal c.d.f.s

Approximate hypothesis tests related to GAM fits

Generalized additive models for very large datasets

Update a strictly additive bam model for new data.

Factor smooth interactions in GAMs

Choleski decomposition of a band diagonal matrix

GAM beta regression family

BLAS thread safety

Reporting mgcv bugs.

Deletion and rank one Cholesky factor update

Basis dimension choice for smooths

GAM censored normal family for log-normal AFT and Tobit models

GAM concurvity measures

Additive Cox Proportional Hazard Model

Distribution families in mgcv

Additive Cox proportional hazard models with time varying covariates

Exclude prediction grid points too far from data

Extract the data covariance matrix from an lme object

Level 5 fractional factorial designs

Modify families for use in GAM fitting and checking

Detect linear dependencies of one matrix on another

GAM formula

Form component of GAMM covariance matrix

FELSPLINE test function

GCV/UBRE score for use within nlm

Some diagnostics for a fitted gam model

Setting GAM fitting defaults

GAM convergence and performance issues

GAM P-IRLS estimation with GCV/UBRE smoothness estimation

P-IRLS GAM estimation with GCV, UBRE/AIC or RE/ML derivative calculati...

Post-processing output of gam.fit5

Simple posterior simulation with gam fits

Specifying generalized additive models

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

Generalized additive models with integrated smoothness estimation

Finding stable orthogonal re-parameterization of the square root penal...

Scale parameter estimation in GAMs

Generalized Additive Model Selection

Identifiability side conditions for a GAM

Report gam smoothness estimates as variance components

Objective functions for GAM smoothing parameter estimation

Transform derivatives wrt mu to derivatives wrt linear predictor

Calculating derivatives of log-likelihood wrt regression coefficients

Generalized Additive Mixed Models

Gamma location-scale model family

Fitted gam object

Simulate example data for GAMs

Gaussian location-scale model family

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

Generalized Extreme Value location-scale model family

Grouped families

GAM Integrated Nested Laplace Approximation Newton Enhanced

Gumbel location-scale model family

Identifiability constraints

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

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

Starting values for multiple smoothing parameter estimation

Are points inside boundary?

Interpret a GAM formula

Just Another Gibbs Additive Modeller: JAGS support for mgcv.

Checking smooth basis dimension

Getting log generalized determinant of penalty matrices

Log Tweedie density evaluation

Linear functionals of a smooth in GAMs

AIC and Log likelihood for a fitted GAM

Size of list elements

Auxilliary information from magic fit

Stable Multiple Smoothing Parameter Estimation by GCV or UBRE

Frequently Asked Questions for package mgcv

Mixed GAM Computation Vehicle with GCV/AIC/REML/NCV smoothness estimat...

Parallel computation in mgcv.

Obtain square roots of penalty matrices

Missing data in GAMs

Extract model matrix from GAM fit

Monotonicity constraints for a cubic regression spline

Smallest square root of matrix

GAM multinomial logistic regression

Multivariate normal additive models

Neighbourhood Cross Validation

GAM negative binomial families

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

Functions for better-than-log positive parameterization

Alternative to log parameterization for variance components

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

GAM ordered categorical family

The one standard error rule for smoother models

Penalized Constrained Least Squares Fitting

Overflow proof pdMat class for multiples of the identity matrix

Functions implementing a pdMat class for tensor product smooths

Extract the effective degrees of freedom associated with each penalty ...

Automatically place a set of knots evenly through covariate values

Default GAM plotting

Plot geographic regions defined as polygons

Prediction from fitted Big Additive Model model

Prediction from fitted GAM model

Predict matrix method functions

Prediction methods for smooth terms in a GAM

Prediction matrix for soap film smooth

Print a Generalized Additive Model object.

Evaluate the c.d.f. of a weighted sum of chi-squared deviates

QQ plots for gam model residuals

Random effects in GAMs

Generalized Additive Model residuals

Generate inverse Gaussian random deviates

Generate from or evaluate multivariate normal or t densities.

Find rank of upper triangular matrix

Generate Tweedie random deviates

Defining smooths in GAM formulae

GAM scaled t family for heavy tailed data

Extract or modify diagonals of a matrix

Sinh-arcsinh location scale and shape model family

Single index models with mgcv

Re-parametrizing model matrix X

Applying re-parameterization from log-determinant of penalty matrix to...

Setting up a list representing a block diagonal penalty matrix

Compute truncated eigen decomposition of a symmetric matrix

Adaptive smooths in GAMs

Penalized B-splines in GAMs

Penalized Cubic regression splines in GAMs

Low rank Duchon 1977 splines

Factor smooth interactions in GAMs

Low rank Gaussian process smooths

Markov Random Field Smooths

P-splines in GAMs

Constructor functions for smooth terms in a GAM

Simple random effects in GAMs

Soap film smoother constructer

Splines on the sphere

Constrained factor smooth interactions in GAMs

Tensor product smoothing constructor

Tensor product smoothing constructor

Penalized thin plate regression splines in GAMs

Generic function to provide extra information about smooth specificati...

Smooth terms in GAM

Convert a smooth to a form suitable for estimating as random effect

Prediction/Construction wrapper functions for GAM smooth terms

Extract smoothing parameter estimator covariance matrix from (RE)ML GA...

Experimental sparse smoothers

Alternatives to step.gam

Summary for a GAM fit

Define alternative tensor product smooths in GAM formulae

Define tensor product smooths or tensor product interactions in GAM fo...

Row Kronecker product/ tensor product smooth construction

Obtaining (orthogonal) basis for null space and range of the penalty m...

Choleski decomposition of a tri-diagonal matrix

Generates index arrays for upper triangular storage

GAM Tweedie families

Tweedie location scale family

find the unique rows in a matrix

Extract parameter (estimator) covariance matrix from GAM fit

Visualization of GAM objects

Internal functions for discretized model matrix handling

GAM zero-inflated (hurdle) Poisson regression family

Zero inflated (hurdle) Poisson location-scale model family

Generalized additive (mixed) models, some of their extensions and other generalized ridge regression with multiple smoothing parameter estimation by (Restricted) Marginal Likelihood, Generalized Cross Validation and similar, or using iterated nested Laplace approximation for fully Bayesian inference. See Wood (2017) <doi:10.1201/9781315370279> for an overview. Includes a gam() function, a wide variety of smoothers, 'JAGS' support and distributions beyond the exponential family.

Maintainer: Simon Wood License: GPL (>= 2) Last published: 2023-12-21