Interpolates selected regions in infrared spectra in an ir object

ir_interpolate_region linearly interpolates a user-defined region in infrared spectra.

Usage

ir_interpolate_region(x, range)

Arguments

x

An object of class ir.

range

A data.frame with a row for each region to interpolate linearly and two columns:

start

A numeric vector with start values for regions to interpolate linearly (x axis values).

end

A numeric vector with end values for regions to interpolate linearly (x axis values).

For each row in range, the values in range$start have to be smaller than the values in range$end.

Value

x with the defined wavenumber region(s) interpolated linearly.

Examples

# interpolation range
range <- data.frame(start = 1000, end = 1500)

# do the interpolation
x <-
   ir::ir_sample_data |>
   ir::ir_interpolate_region(range = range)