diffFilter.massvectorlist {mscalib}R Documentation

Abundant Differences

Description

Removes masses from the massvector.

Usage

## S3 method for class 'massvectorlist':
diffFilter(object,listofdiffs,higher=TRUE,error=0.05,uniq=TRUE,prune=FALSE,...)

Arguments

...
error How much the differences can diviate from the differences given in listofdiffs
higher TRUE - remove higher mass, FALSE = remove lower mass.
listofdiffs
object
prune logical;default = TRUE - removes modified mass; FALSE - return modified mass.
uniq

Details

Removes one of the masses contributing to a mass difference given in the list of diffs. Can be used if a variable modification are present in the massvector but can not be considered by the identification software. Abundant intra massvector mass differences indicate the presence of variable modifications in the data set. This information can be used to optimize the search strategy.

Value

massvector filtered massvector.

Author(s)

Witold Wolski wolski@molgen.mpg.de

References

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

See Also

diffFilter.massvector, getdiff.massvector, getdiff.massvectorlist,

Examples

 data(mvl)
 res<-getdiff(mvl,range=c(0,100))
 hist(res)
 res<-gamasses(res,abund=100)
 test<-diffFilter(mvl,res,higher=TRUE,error=0.1,uniq=TRUE)
 test

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