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 |
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
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