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netgwas (version 1.13)

Network-Based Genome Wide Association Studies

Description

A multi-core R package that contains a set of tools based on copula graphical models for accomplishing the three interrelated goals in genetics and genomics in an unified way: (1) linkage map construction, (2) constructing linkage disequilibrium networks, and (3) exploring high-dimensional genotype-phenotype network and genotype- phenotype-environment interactions networks. The netgwas package can deal with biparental inbreeding and outbreeding species with any ploidy level, namely diploid (2 sets of chromosomes), triploid (3 sets of chromosomes), tetraploid (4 sets of chromosomes) and so on. We target on high-dimensional data where number of variables p is considerably larger than number of sample sizes (p >> n). The computations is memory-optimized using the sparse matrix output. The package is implemented the recent methodological developments in Behrouzi and Wit (2017) and Behrouzi and Wit (2017) . NOTICE proper functionality of 'netgwas' requires that the 'RBGL' package is installed from 'bioconductor'; for installation instruction please refer to the 'RBGL' web page given below.

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Version

Install

install.packages('netgwas')

Monthly Downloads

113

Version

1.13

License

GPL-3

Maintainer

Pariya Behrouzi

Last Published

November 17th, 2020

Functions in netgwas (1.13)

buildMap

linkage group detection and ordering markers for class "netgwasmap"
plot.netgwasmap

plot for S3 class "netgwasmap"
netmap

Constructing linkage map for diploids and polyploids
netgwas-package

Network Based Genome Wide Association Studies
plot.netgwas

plot for S3 class "netgwas"
netsnp

Reconstructs intra- and inter- chromosomal conditional interactions among genetic loci
netphenogeno

Reconstructs conditional dependence network among genetic loci and phenotypes
plot.select

Plot function for S3 class "select"
plot.simgeno

Plot function for S3 class "simgeno"
print.netgwas

Print function for S3 class "netgwas"
netgwas2cross

netgwasmap object to cross object
print.netgwasmap

Print function for S3 class "netgwasmap"
thaliana

Arabidopsis thaliana phenotype and genotype data
tetraPotato

tetraploid potato genotype data
print.select

Print function for S3 class "select"
simRIL

Generate genotype data of RIL
simgeno

Generate genotype data based on Gaussian copula
print.simgeno

Print function for S3 class "simgeno"
selectnet

Model selection
detect.err

Identiying likely genotyping error
R.gibbs

The expectation of covariance matrix using Gibbs sampling
cal.pos

Estimate genetic map distances
lower.upper

Calculates lower band and upper band
cross2netgwas

cross object to netgwas data frame
cutoffs

Cut-points
netgwas-internal

netgwas-internal
CviCol

Arabidopsis thaliana genotype data
R.approx

The expectation of covariance using approximation method