cosmiq

This package is for version 3.0 of Bioconductor; for the stable, up-to-date release version, see cosmiq.

cosmiq - COmbining Single Masses Into Quantities

Bioconductor version: 3.0

cosmiq is a tool for the preprocessing of liquid- or gas - chromatography mass spectrometry (LCMS/GCMS) data with a focus on metabolomics or lipidomics applications. To improve the detection of low abundant signals, cosmiq generates master maps of the mZ/RT space from all acquired runs before a peak detection algorithm is applied. The result is a more robust identification and quantification of low-intensity MS signals compared to conventional approaches where peak picking is performed in each LCMS/GCMS file separately. The cosmiq package builds on the xcmsSet object structure and can be therefore integrated well with the package xcms as an alternative preprocessing step.

Author: David Fischer <dajofischer at googlemail.com>, Christian Panse <cp at fgcz.ethz.ch>, Endre Laczko <endre.laczko at fgcz.uzh.ch>

Maintainer: David Fischer <dajofischer at googlemail.com>, Christian Panse <cp at fgcz.ethz.ch>

Installation

To install this package, start R and enter:

## try http:// if https:// URLs are not supported
source("https://bioconductor.org/biocLite.R")
biocLite("cosmiq")

Documentation

To view documentation for the version of this package installed in your system, start R and enter:

browseVignettes("cosmiq")

Details

Package Archives

Follow Installation instructions to use this package in your R session.