ppp: Identify Biomolecules from the Proportion Present (PPP) for...

In pmartR: Panomics Marketplace - Quality Control and Statistical Analysis for Panomics Data

Identify Biomolecules from the Proportion Present (PPP) for Use in Normalization

Description

Selects biomolecules for normalization via the method of percentage of the peptides (or proteins, metabolites, etc.) present (PPP)

Usage

ppp(e_data, edata_id, proportion = 0.5)

Arguments

e_data	a p \times n + 1 data.frame, where p is the number of peptides, proteins, lipids, or metabolites and n is the number of samples. Each row corresponds to data for a peptide, protein, lipid, or metabolite, with one column giving the biomolecule identifier name.
edata_id	character string indicating the name of the peptide, protein, lipid, or metabolite identifier. Usually obtained by calling attr(omicsData, "cnames")$edata_cname.
proportion	numeric value between 0 and 1, indicating the proportion at or above which a biomolecule must be present across all samples in order to be retained (default value 0.5)

Details

Biomolecules present across proportion samples are designated as PPP.

Value

Character vector containing the biomolecules belonging to the PPP subset.

Author(s)

Kelly Stratton

pmartR documentation built on Oct. 15, 2024, 1:06 a.m.