fmatch-methods {msbase}R Documentation

Index of matching peaks

Description

Determines index of matching peaks.

Arguments

obx see below in Methods section
oby see below in Methods section
error measurement error in e.g. Da or as relative error in parts per million (ppm)
ppm if TRUE then error in parts per million(ppm), in arbitrary units otherwise.
uniq if TRUE compute non-crossing matching.

Value

plind index of matching peaks in argument obx
calind index of matching peaks in argument oby
resid residue between matching peaks (either in ppm or Da)

Methods

obx = "numeric", oby = "numeric"
...
obx = "Massvector", oby = "Massvector"
...

Examples

data(pldata)
pl1 <- pldata[[1]]
pl2 <- pldata[[4]]
fmatch(pl1,pl2,error=0.1,ppm=FALSE,uniq=TRUE)
fmatch(pl1,pl2,error=150,ppm=TRUE,uniq=TRUE)

[Package msbase version 1.4.0 Index]