# gnm v1.1-1

Monthly downloads

## Generalized Nonlinear Models

Functions to specify and fit generalized nonlinear models, including models with multiplicative interaction terms such as the UNIDIFF model from sociology and the AMMI model from crop science, and many others. Over-parameterized representations of models are used throughout; functions are provided for inference on estimable parameter combinations, as well as standard methods for diagnostics etc.

## Readme

# gnm

Functions to specify and fit generalized nonlinear models, including models with multiplicative interaction terms such as the UNIDIFF model from sociology and the AMMI model from crop science, and many others. Over-parameterized representations of models are used throughout; functions are provided for inference on estimable parameter combinations, as well as standard methods for diagnostics etc.

## Installation

You can install **gnm** from GitHub with:

```
# install.packages("devtools")
devtools::install_github("hturner/gnm")
```

## Code of conduct

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.

## Functions in gnm

Name | Description | |

Diag | Equality of Two or More Factors | |

Dref | Specify a Diagonal Reference Term in a gnm Model Formula | |

Const | Specify a Constant in a "nonlin" Function Predictor | |

Symm | Symmetric Interaction of Factors | |

Inv | Specify the Reciprocal of a Predictor in a gnm Model Formula | |

MultHomog | Specify a Multiplicative Interaction with Homogeneous Effects in a gnm Model Formula | |

MPinv | Moore-Penrose Pseudoinverse of a Real-valued Matrix | |

barley | Jenkyn's Data on Leaf-blotch on Barley | |

cautres | Data on Class, Religion and Vote in France | |

Multiplicative interaction | Specify a Product of Predictors in a gnm Model Formula | |

House2001 | Data on twenty roll calls in the US House of Representatives, 2001 | |

Exp | Specify the Exponential of a Predictor in a gnm Model Formula | |

barleyHeights | Heights of Barley Plants | |

confint.gnm | Compute Confidence Intervals of Parameters in a Generalized Nonlinear Model | |

meanResiduals | Average Residuals within Factor Levels | |

asGnm | Coerce Linear Model to gnm Object | |

checkEstimable | Check Whether One or More Parameter Combinations in a gnm Model are Identified | |

residSVD | Multiplicative Approximation of Model Residuals | |

Topo | Topological Interaction of Factors | |

erikson | Intergenerational Class Mobility in England/Wales, France and Sweden | |

backPain | Data on Back Pain Prognosis, from Anderson (1984) | |

gnm-defunct | Defunct Functions in gnm Package | |

se.gnm | Standard Errors of Linear Parameter Combinations in gnm Models | |

mentalHealth | Data on Mental Health and Socioeconomic Status | |

anova.gnm | Analysis of Deviance for Generalized Nonlinear Models | |

gnm | Fitting Generalized Nonlinear Models | |

friend | Occupation of Respondents and Their Closest Friend | |

se | Extract Standard Errors | |

exitInfo | Print Exit Information for gnm Fit | |

gnm-package | Generalized Nonlinear Models | |

summary.gnm | Summarize Generalized Nonlinear Model Fits | |

instances | Specify Multiple Instances of a Nonlinear Term in a gnm Model Formula | |

parameters | Extract Constrained and Estimated Parameters from a gnm Object | |

expandCategorical | Expand Data Frame by Re-expressing Categorical Data as Counts | |

wedderburn | Wedderburn Quasi-likelihood Family | |

getContrasts | Estimated Contrasts and Standard Errors for Parameters in a gnm Model | |

voting | Data on Social Mobility and the Labour Vote | |

pickCoef | Get Indices or Values of Selected Model Coefficients | |

ofInterest | Coefficients of Interest in a Generalized Nonlinear Model | |

predict.gnm | Predict Method for Generalized Nonlinear Models | |

plot.gnm | Plot Diagnostics for a gnm Object | |

model.matrix.gnm | Local Design Matrix for a Generalized Nonlinear Model | |

yaish | Class Mobility by Level of Education in Israel | |

wheat | Wheat Yields from Mexican Field Trials | |

nonlin.function | Functions to Specify Nonlinear Terms in gnm Models | |

profile.gnm | Profile Deviance for Parameters in a Generalized Nonlinear Model | |

termPredictors | Extract Term Contributions to Predictor | |

vcov.gnm | Variance-covariance Matrix for Parameters in a Generalized Nonlinear Model | |

No Results! |

## Vignettes of gnm

## Last month downloads

## Details

URL | https://github.com/hturner/gnm |

BugReports | https://github.com/hturner/gnm/issues |

License | GPL-2 | GPL-3 |

LazyData | yes |

Language | en-GB |

NeedsCompilation | yes |

Packaged | 2020-02-02 19:31:05 UTC; hturner |

Repository | CRAN |

Date/Publication | 2020-02-03 14:20:02 UTC |

imports | graphics , grDevices , MASS , Matrix , methods , nnet , qvcalc (>= 0.8-3) , relimp , stats , utils |

depends | R (>= 3.0.0) |

suggests | testthat , vcdExtra |

Contributors | Bill Venables, David Firth, Brian Ripley, Douglas Bates, Martin Maechler |

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