multiplePeaks {MetaNetwork}R Documentation

Example Multiple Peaks report

Description

Example of the Multiple Peaks report that relates metabolites represented by multiple mass peaks (because of isotopic or differential charges) for peaks2 example data set using information from traits2. This report can be produced by functions findMultiplePeaks or MetaNetwork.

> data(multiplePeaks)
> multiplePeaks[1:5,]
cluster peak1 mz1 peak2 mz2 corrCoef massDiff massRatio relationship
1 LCavg.1539 378 LCavg.1538 377 0.9998261 1 1.0 isotope
2 LCavg.1570 424 LCavg.1566 423 0.9989359 1 1.0 isotope
3 LCavg.1610 436 LCavg.1596 873 0.9912291 -437 0.5 diffCharged
4 LCavg.1611 437 LCavg.1610 436 0.9612162 1 1.0 isotope
5 LCavg.1612 438 LCavg.1596 873 0.9513867 -435 0.5 diffCharged

Usage

data(multiplePeaks)

Format

A data frame.

Author(s)

Jingyuan Fu <j.fu@rug.nl>, Morris Swertz <m.a.swertz@rug.nl>, Ritsert Jansen <r.c.jansen@rug.nl>

Source

Keurentjes JJB, FU J, de vos CHR, Lommen A, Hall RD, Bino RJ, van der Plas LHW, Jansen RC, Vreugdenhil D and Koornneef M. The genetics of plant metabolism. Nature Genetics (2006) 7: 842-849.

References

Fu J, Swertz MA, Keurentjes JJB, Jansen RC. MetaNetwork: a computational tool for the genetic study of metabolism. Nature Protocols (2007).

http://gbic.biol.rug.nl/supplementary/2007/MetaNetwork

See Also

Use findMultiplePeaks to generate multiplePeaks.
Use MetaNetwork to produce this dataset as part a genetic analysis protocol on metabolites.


[Package MetaNetwork version 1.0-0 Index]