R: averagine - a data set conatining isotope envelopes of...

averagine {protViz} | R Documentation

## averagine - a data set conatining isotope envelopes of averagine peptides

### Description

generated using proteowizards `IsotopeEnvelopeEstimator` class.

### Format

first column mass, column 1:8 l2 normalized isotope intensities

### Author(s)

Witold Wolski and Christian Panse 2013

### References

A general approach to calculating isotopic distributions for mass spectrometry James A. Yergey Volume 52, Issues 2 1 September 1983, Pages 3379

http://www.sciencedirect.com/science/article/pii/0020738183850530 http://proteowizard.sourceforge.net

### Examples

    data(averagine)
    r<-seq(0,1,length=200); cm<-c(rgb(r,r,r), '#555599')
    image(m<-as.matrix(averagine), col=rev(cm), axes=FALSE, main='protViz
    averagine data - normalized isotope intensities ',
    sub='the blue color indicates fields with value 0.',
    xlab='isotops',
    ylab='mass');
    box()
    axis(1, seq(0,1,length=nrow(m)), 1:nrow(m));
    axis(2, seq(0,1,length=10), colnames(m)[seq(1,ncol(m), length=10)])

[Package protViz version 0.6.8 Index]