applycalib.calibrelist {mscalib}R Documentation

Precalibration

Description

Uses the error model obtained by the method getrecalib and stored in a calibrelist to correct masses in the massvectorlist.

Usage

## S3 method for class 'calibrelist':
applycalib(object,mvl,...)

Arguments

... further parameters
mvl massvectorlist
object calibrelist

Details

Precalibration method utilizes the knowledge that masses of peptides are in equidistant spaced clusters. The wavelength of the massesvector can be determined as described by Wool. The comparision of the experimental wavelength with the theoretical one, makes possible to find an affine function that corrects the masses. Chemical noise in the spectra may hamper the determination of mass list frequency. The package provides a function to filter chemical noise.

Value

massvectorlist calibrated massvectorlist.

Author(s)

Witold Wolski wolski@molgen.mpg.de

References

-
Wolski http://www.molgen.mpg.de/~wolski/mscalib

See Also

recalibrate.massvectorlist, getrecalib.massvectorlist, correctinternal.massvectorlist,

Examples

 data(mvl)
 mvl<-mvl[1:100]
 res<-getrecalib(mvl)
 plot(res)
 image(res,what="PQM")
 mvlr<-applycalib(res,mvl)

[Package Contents]