TopnPeptides {DAPAR}R Documentation

Compute the intensity of proteins as the sum of the intensities of their n best peptides.

Description

This function computes the intensity of proteins as the sum of the intensities of their n best peptides.

Usage

TopnPeptides(matAdj, expr, n)

Arguments

matAdj

An adjacency matrix in which lines and columns correspond respectively to peptides and proteins.

expr

A matrix of intensities of peptides

n

The maximum number of peptides used to aggregate a protein.

Value

A matrix of intensities of proteins

Author(s)

Alexia Dorffer

Examples

require(DAPARdata)
data(Exp1_R25_pept)
protID <- "Protein.group.IDs"
matAdj <- BuildAdjacencyMatrix(Exp1_R25_pept[1:1000], protID, FALSE)
TopnPeptides(matAdj, Biobase::exprs(Exp1_R25_pept[1:1000]), 3)

[Package DAPAR version 1.10.4 Index]