Skip to contents

Normalize Spectral Data by Specific Wavenumber Value

Source: R/spec_norm_by_wn.R
spec_norm_by_wn.Rd

This function normalizes the numeric spectral data in each column so that the intensity at a specified wavenumber equals a target value (default is 1), while preserving the wavelength column.

Usage

spec_norm_by_wn(
  .data,
  wn_col = NULL,
  target_wn,
  target_value = 1,
  method = "linear"
)

Arguments

.data

A `data.frame` or `tibble` containing spectral data.

wn_col

A character string specifying the column name for the wavelength data. If NULL, uses the default set by `set_spec_wn()`.

target_wn

A numeric value specifying the wavenumber to use as reference for normalization.

target_value

A numeric value specifying the target intensity value at the reference wavenumber. Default is 1.

method

A character string specifying the interpolation method when the exact wavenumber is not found. Options are "linear" (default) or "nearest".

Value

A `tibble` with the wavenumber-normalized spectral data, containing the wavelength column and the normalized numeric columns.