MS analysis in R

Description Usage Arguments Value References

This function takes a scan and finds the first non-noise ion in it based on the dynamic noise level algorithm described by Xu and Freitas (2009). It returns the intensity of that ion.

1	scanNoise(scan, sn, rho)

`scan`	A matrix with mz and intensity values
`sn`	The required minimum signal-to-noise to be considered a real signal
`rho`	The modifier to use for the second lowest ion special case

A numeric with the intensity of the first ion that gets accepted as a true signal

Xu, H., & Freitas, M. A. (2009). A dynamic noise level algorithm for spectral screening of peptide MS/MS spectra. BMC Bioinformatics, 11, 436–436. doi:10.1186/1471-2105-11-436

thomasp85/MSsary documentation built on May 31, 2019, 11:11 a.m.