precSelection: Number of precursor selection events
Description
precSelection computes the number of selection events each
precursor ions has undergone in an tandem MS experiment. This will be
a function of amount of peptide loaded, chromatography efficiency,
exclusion time,... and is useful when optimising and experimental
setup. This function returns a named integer vector or length equal to
the number of unique precursor MZ values in the original
experiment. See n parameter to set the number of MZ significant
decimals.
precSelectionTable is a wrapper around precSelection and
returns a table with the number of single, 2-fold, ... selection events.
Usage
precSelection(object,n)
Arguments
object
An instane of class "MSnExp".
n
The number of decimal places to round the precursor MZ
to. Is passed to the round function.
Value
A named integer in case of precSelection and a table for
precSelectionTable.