calculate_backgrounds: Calculate background signals

In KopfLab/isoprocessor: IRMS data processor

Description

This function calculates peak backgrounds from a chromatographic trace with peak table data (see iso_combine_raw_data_with_peak_table).

Usage

calculate_backgrounds(
  data,
  method,
  signal_pattern = "^[vi]\\d+",
  bg_suffix = "_bgrd",
  time = default("time"),
  peak = default("peak"),
  bgrd = default("bgrd"),
  file = default("file"),
  quiet = default("quiet")
)

Arguments

data	the data frame with chromatographic and peak information
method	what method to use to calculate backgrounds (backgrounds are ALWAYS based solely on time points marked as background) run_const = constant background averaged across entire run run_linear = linear background across run @FIXME NOT IMPELEMENTED YET peak_const = constant background across single peak @FIXME NOT IMPELEMENTED YET peak_linear = linear background across peak @FIXME NOT IMPELEMENTED YET
signal_pattern	pattern for signal columns (by default detects voltages starting with e.g. v45 and currents starting with e.g. i45)
bg_suffix	the suffix for the new background columns
time	column name of the time column to use to find peak centers
peak	column name of the peak id column that identifies different peaks
file	column name of the filename column

Value

data frame with new signal columns with bg_suffix added, as well as a p.calc_bgrd_method

Note

perhaps implement possibilty to pass with an actual function as method that takes the sub data frame as parameter?

KopfLab/isoprocessor documentation built on Nov. 6, 2021, 10:18 p.m.