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GRAPE (version 0.1.1)

Gene-Ranking Analysis of Pathway Expression

Description

Gene-Ranking Analysis of Pathway Expression (GRAPE) is a tool for summarizing the consensus behavior of biological pathways in the form of a template, and for quantifying the extent to which individual samples deviate from the template. GRAPE templates are based only on the relative rankings of the genes within the pathway and can be used for classification of tissue types or disease subtypes. GRAPE can be used to represent gene-expression samples as vectors of pathway scores, where each pathway score indicates the departure from a given collection of reference samples. The resulting pathway- space representation can be used as the feature set for various applications, including survival analysis and drug-response prediction. Users of GRAPE should use the following citation: Klein MI, Stern DF, and Zhao H. GRAPE: A pathway template method to characterize tissue-specific functionality from gene expression profiles. BMC Bioinformatics, 18:317 (June 2017).

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Version

Install

install.packages('GRAPE')

Monthly Downloads

187

Version

0.1.1

License

GPL-2

Maintainer

Michael Klein

Last Published

May 7th, 2019

Functions in GRAPE (0.1.1)

predictClassDIRAC

DIRAC Classification
makePairwiseOrderNames

Make template names from gene names
w_quad

Quadratic weight function
predictClassGRAPE

GRAPE Classification
predictClassPC

PC Classification
makeGRAPE_psMat

Calculate Pathway Space Matrix
getPathwayScores

Calculate Pathway Scores
makePairwiseOrder

Make pairwise order representation of a sample
makeBinaryTemplateAndProbabilityTemplate

Make binary template and probability template