orbi_flag_satellite_peaks: Flag minor satellite peaks

In isoverse/isoorbi: Process Orbitrap Isotopocule Data

Flag minor satellite peaks

Description

Flag minor signals (e.g., satellite peaks) that were reported by IsoX (filter them out with orbi_filter_flagged_data()).

Usage

orbi_flag_satellite_peaks(dataset)

Arguments

dataset

A data frame or tibble produced from IsoX data by orbi_simplify_isox()

Details

The 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.

Value

A data frame with new column is_satellite_peak that flags satellite peaks.

Examples

fpath <- system.file("extdata", "testfile_flow.isox", package = "isoorbi")
df <-
  orbi_read_isox(file = fpath) |>
  orbi_simplify_isox() |>
  orbi_flag_satellite_peaks()

isoverse/isoorbi documentation built on Aug. 9, 2024, 3:42 p.m.