Flag minor satellite peaksSource:
Flag minor signals (e.g., satellite peaks) that were reported by IsoX (filter them out with
A data frame or tibble produced from IsoX data by
orbi_filter_satellite_peaks() function removes minor signals for an isotopocule that have been reported by IsoX.
These are often small
satellite peaks generated by the Fourier transform.
If there are signal of high intensity or very many signals, this can indicate that the m/z and tolerance setting used for processing .raw files with IsoX were incorrect.
fpath <- system.file("extdata", "testfile_flow.isox", package = "isoorbi") df <- orbi_read_isox(file = fpath) |> orbi_simplify_isox() |> orbi_flag_satellite_peaks() #> orbi_read_isox() is loading .isox data from 1 file(s)... #> - loaded 6449 peaks for 1 compounds (HSO4-) with 5 isotopocules (M0, 33S, #> 17O, 34S, 18O) from testfile_flow.isox in 0.02 seconds. #> orbi_simplify_isox() will keep only columns 'filepath', 'filename', #> 'scan.no', 'time.min', 'compound', 'isotopocule', 'ions.incremental', #> 'tic', 'it.ms'... #> ...complete in 0.00 seconds. #> orbi_flag_satellite_peaks() is flagging minor signals (satellite peaks)... #> ...confirmed there are no satellite peaks in 0.16 seconds.