compPeptideCorrelations: compute various correlation

In wolski/imsbInfer: Visualization, normalization and QC of proteomics SWATH-MS data

Description

• random - Features/Peakgroupscan be randomly drawn from the dataset.

• unique - Features/Peakgroups can be randomly drawn among those peptides which uniquely represent proteins.

• protein - correlation among peakgroups derived from the same protein can be computed.

• proteinTOP - The correlation among peaks derived from the same protein and having good intensities.

• peptide - correlation of peaks representing the same peptide but with different charge.

Usage

compPeptideCorrelations(specLib, countmax = 500)

Arguments

specLib	msexperiment
countmax	max number of comparisons

Examples

data(SDat)
specLib = orderByRT(SDat)
pairsDifference(specLib$Intensity,specLib$RT)

res = compPeptideCorrelations(specLib,countmax=100)

wolski/imsbInfer documentation built on March 27, 2021, 11:39 p.m.