gamasses.massvector {mscalib} | R Documentation |
Determines abundant masses in a massvector.
## S3 method for class 'massvector': gamasses(object,accur = 0.1,abund = 50,...)
... |
further parameters. |
abund |
how many times a mass have to occur in a mass bin to be considered as an abundant mass. |
accur |
measurment accuracy in m/z |
object |
massvector |
Abundant masses are masses that occur in a large fraction of the massvectors. Typical abundant mass are derived from tryptic autoproteolysis products. Abundant masses can also often be assigned to keratin isoforms (human hair- and skin proteins). Many of the abundant masses cannot be assigned to any protein. Abundant masses can be used for calibration. Removing them may increase the identification specificity.
massvector |
massvector with abundant masses. |
Witold Wolski wolski@molgen.mpg.de
data(mvl) mv<-unlist(mvl) res<-gamasses(mv,abund=30,accur=0.3) plot(res)