| calculate_abundances {lans2r} | R Documentation |
Calculate isotope fractional abundances
Description
This function calculates the isotope abundances (in %!) and resulting counting statistics error from the raw ion counts. It can be applied to data from both LANS_summary and LANS_maps loading but can be slow if LANS_maps is combined from many analyses.
Usage
calculate_abundances(data, ..., name_fun = default_name, quiet = FALSE)
Arguments
data |
a data frame with raw ion counts retrieved from |
... |
the fractional abundances to calculate, each entry is for one fractional abundance with major isotope first, then
minor isotope, e.g. c( |
name_fun |
the naming function, receives ... from the top level, default concatenates 'F' + minor ion name |
quiet |
whether the function should output information messages or be quiet (default is to output) |
Value
the original data frame with the fractional abundance information appended (all fractional abundances are in % and have data_type == "abundance")
See Also
Other calculations:
calculate_ratios(),
calculate_sums(),
calculate()