mass_measurement_error {MSnID} | R Documentation |
Computes error of the parent ion mass to charge measurement from
experimentalMassToCharge
and calculatedMassToCharge
.
The returned value is in points per million (ppm).
mass_measurement_error(object)
object |
An instance of class "MSnID". |
It may be more common to compute "mass measurement error". However, the practical difference in "mass measurement error" and "mass to charge measurement error" is negligible. Moreover, the instruments measure mass/charge ratio, not mass per se.
Returns mass to charge measurement error in "ppm" units.
Vladislav A Petyuk vladislav.petyuk@pnnl.gov
MSnID
recalibrate
correct_peak_selection
data(c_elegans) ppm <- mass_measurement_error(msnidObj) hist(ppm, 100)