conform_spec: Conform spectra to a standard wavenumber series

In OpenSpecy: Analyze, Process, Identify, and Share Raman and (FT)IR Spectra

Conform spectra to a standard wavenumber series

Description

Spectra can be conformed to a standard suite of wavenumbers to be compared with a reference library or to be merged to other spectra.

Usage

conform_spec(x, ...)

## Default S3 method:
conform_spec(x, ...)

## S3 method for class 'OpenSpecy'
conform_spec(x, range = NULL, res = 5, allow_na = F, type = "interp", ...)

Arguments

x	a list object of class OpenSpecy.
range	a vector of new wavenumber values, can be just supplied as a min and max value.
res	spectral resolution adjusted to or NULL if the raw range should be used.
allow_na	logical; should NA values in places beyond the wavenumbers of the dataset be allowed?
type	the type of wavenumber adjustment to make. "interp" results in linear interpolation while "roll" conducts a nearest rolling join of the wavenumbers. "mean_up" assigns source values by midpoint and returns one row for every requested wavenumber: occupied bins are averaged, while requested positions with no source value are linearly interpolated. This can maintain smaller peaks, match either a coarser or finer target axis, and avoid full-size grouping copies. The mean-up option is still experimental.
...	further arguments passed to approx()

Value

adj_intens() returns a data frame containing two columns named "wavenumber" and "intensity"

Author(s)

Win Cowger, Zacharias Steinmetz

See Also

restrict_range() and flatten_range() for adjusting wavenumber ranges; subtr_baseline() for spectral background correction

Examples

data("raman_hdpe")
conform_spec(raman_hdpe, c(1000, 2000))

OpenSpecy documentation built on Oct. 6, 2026, 1:07 a.m.