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sommer (version 2.1)

Solving Mixed Model Equations in R

Description

Multivariate mixed model solver for multiple random effects allowing the specification of variance covariance structures. ML/REML estimates are obtained using the Average Information (AI), Expectation-Maximization (EM), Newton-Raphson (NR), or Efficient Mixed Model Association (EMMA) algorithms. Designed for genomic prediction and genome wide association studies (GWAS) to include additive, dominance and epistatic relationship structures or other covariance structures in R, but also functional as a regular mixed model program. Multivariate models (multiple responses) can be fitted currently with NR, AI and EMMA algorithms allowing multiple random effects as well. Covariance structures for the residual component is currently supported only for balanced univariate Newton Raphson.

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Version

Install

install.packages('sommer')

Monthly Downloads

4,273

Version

2.1

License

GPL-3

Maintainer

Giovanny CovarrubiasPazaran

Last Published

August 31st, 2016

Functions in sommer (2.1)

augment

augment design example.
EMMA

Efficient Mixed Model Association Algorithm
coef.mmer

coef form a GLMM fitted with mmer
EM

Expectation Maximization Algorithm
coef.MMERM

coef form a GLMM fitted with mmer
CPdata

Genotypic and Phenotypic data for a CP population
F1geno

Genotypes from an F1(CP) cross to show phasing
EM2

Expectation Maximization Algorithm
cornHybrid

Corn crosses and markers
eigenGWAS

Unraveling selection signatures with eigenGWAS
hadamard.prod

Hadamard product of two matrices
hdm

Half Diallel Matrix
fdr

False Discovery Rate calculation
fitted.MMERM

fitted form a GLMM fitted with mmer
HDdata

half diallel data for corn hybrids
hits

Creating a fixed effect matrix with significant GWAS markers
FDdata

half diallel data for corn hybrids
h2

Broad sense heritability calculation.
fitted.mmer

fitted form a GLMM fitted with mmer
MAI

Multivariate Average Information Algorithm
manhattan

Creating a manhattan plot
MEMMA

Multivariate Efficient Mixed Model Association Algorithm
map.plot

Creating a genetic map plot
jet.colors

Generate a sequence of colors alog the jet colormap.
is.diagonal.matrix

Test for diagonal square matrix
matrix.trace

The trace of a matrix
MAI2

Multivariate Average Information Algorithm
mmerSNOW

Mixed Model Equations in R univariate
is.square.matrix

Test for square matrix
my.colors

All typical colors in R easy to access.
MNR

Multivariate Newton-Raphson Algorithm
plot.MMERM

plot form a GLMM plot with mmer
phase.F1

Phasing F1 (CP) data in biparental populations
PEV

Selecting the best training population for genomic selection
NR22

Newton-Raphson Algorithm
NR

Newton-Raphson Algorithm
NRR

Newton-Raphson Algorithm including Residual structures
plot.mmer

plot form a GLMM plot with mmer
summary.mmerM

summary form a GLMM fitted with mmer
poe

Short poems from Latin America, and other places why not?
residuals.mmerM

Residuals form a GLMM fitted with mmer
sommer-package

Solving Mixed Model Equations in R
PolyData

Genotypic and Phenotypic data for a potato polyploid population
summary.mmer

summary form a GLMM fitted with mmer
residuals.mmer

Residuals form a GLMM fitted with mmer
RICE

Rice lines dataset
wheatLines

wheat lines dataset
yates.oats

Yield of oats in a split-block experiment
Technow_data

Genotypic and Phenotypic data from single cross hybrids (Technow et al. (2014))
bathy.colors

Generate a sequence of colors for plotting bathymetric data.
TP.prep

Selecting the best training population for genomic selection
anova.mmerM

anova form a GLMM fitted with mmer
brewer.pal

Generate a sequence of colors for groups.
ai2help

Average Information Algorithm
anova.mmer

anova form a GLMM fitted with mmer
atcg1234

Letter to number converter
adiag1

Binds arrays corner-to-corner
AI

Average Information Algorithm