bin-methods.RdThis method aggregates individual spectra (Spectrum instances)
or whole experiments (MSnExp instances) into discrete bins. All
intensity values which belong to the same bin are summed together.
signature(object = "MSnExp", binSize = "numeric", verbose =
"logical")Bins all spectra in an MSnExp
object. Use binSize to control the size of a bin
(in Dalton, default is 1).
Displays a control bar if verbose set to TRUE
(default). Returns a binned MSnExp instance.
signature(object = "Spectrum", binSize = "numeric",
breaks = "numeric", msLevel. = "numeric")Bin the
Spectrum object. Use binSize to control the size
of a bin (in Dalton, default is 1). Similar to
hist you could use breaks to
specify the breakpoints between m/z bins. msLevel.
defines the level of the spectrum, and if msLevel(object)
!= msLevel., cleaning is ignored. Only relevant when called
from OnDiskMSnExp and is only relevant for developers.
Returns a binned Spectrum instance.
clean, pickPeaks, smooth,
removePeaks and trimMz
for other spectra processing methods.
s <- new("Spectrum2", mz=1:10, intensity=1:10)
intensity(s)
#> [1] 1 2 3 4 5 6 7 8 9 10
intensity(bin(s, binSize=2))
#> [1] 3 7 11 15 19
data(itraqdata)
sum(peaksCount(itraqdata))
#> [1] 106289
itraqdata2 <- bin(itraqdata, binSize=2)
sum(peaksCount(itraqdata2))
#> [1] 54186
processingData(itraqdata2)
#> - - - Processing information - - -
#> Data loaded: Wed May 11 18:54:39 2011
#> Updated from version 0.3.0 to 0.3.1 [Fri Jul 8 20:23:25 2016]
#> Spectra binned: Thu Mar 14 06:10:30 2024
#> MSnbase version: 1.1.22