This function normalizes the numeric spectral data in each column so that the area under the curve equals a specified value (default is 1), while preserving the wavelength column.
Usage
spec_norm_area(.data, wn_col = NULL, target_area = 1)
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_area
A numeric value specifying the target area under the curve. Default is 1.
Value
A `tibble` with the area-normalized spectral data, containing the wavelength column and the normalized numeric columns.
