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About the project

This repository is a fork of cran/sigora repository https://github.com/cran/sigora

Package ‘sigora’ was removed from the CRAN repository. It was archived on 2021-04-10 as check problems were not corrected in time.

The code changes made in the project aim at removing all ERROR's and WARNING's from the R CMD check and BiocCheck.

Pathway-GPS and SIGORA: identifying relevant pathways based on the over-representation of their gene-pair signatures

Pathway Analysis is statistically linking observations on the molecular level to biological processes or pathways on the systems(i.e., organism, organ, tissue, cell) level.
Traditionally, pathway analysis methods regard pathways as collections of single genes and treat all genes in a pathway as equally informative. However, this can lead to identifying spurious pathways as statistically significant since components are often shared amongst pathways. SIGORA seeks to avoid this pitfall by focusing on genes or gene pairs that are (as a combination) specific to a single pathway. In relying on such pathway gene-pair signatures (Pathway-GPS), SIGORA inherently uses the status of other genes in the experimental context to identify the most relevant pathways. The current version allows for pathway analysis of human and mouse datasets. In addition, it contains pre-computed Pathway-GPS data for pathways in the KEGG and Reactome pathway repositories and mechanisms for extracting GPS for user-supplied repositories.

Author: Amir B.K. Foroushani

HowTO install the Sigora package

remoteds::install_githug("wolski/sigora")

For more information about the Sigora package, see: wolski.github.io/sigora

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Install

install.packages('sigora')

Monthly Downloads

309

Version

3.1.1

License

GPL-3

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Maintainer

Witold E Wolski

Last Published

November 30th, 2021

Functions in sigora (3.1.1)

sigora-package

sigora: Signature Overrepresentation Analysis
kegM

Pathway GPS data, extracted from KEGG repository (Mouse).
sigora

Sigora's main function.
reaM

Pathway GPS data, extracted from Reactome repository (Mouse).
reaH

Pathway GPS data, extracted from the Reactome repository (Human).
getGenes

List genes involved in present GPS for a specific pathway in the summary_results
load_data

load and return data when lazyLoad false insted of using data(datastr)
kegH

Pathway GPS data, extracted from KEGG repository (Human).
ora

Traditional Overrepresentation Analysis.
makeGPS

Create your own Signature Object.
genesFromRandomPathways

Function to randomly select genes associated with randomly pathways.
getURL

Highlight the relevant genes for a specific pathway in its pathway diagram
nciTable

NCI human gene-pathway associations.
idmap

Identifier mappings for protein coding genes.