match_lineshape: Apply Voigt line-broadening to match a reference spectrum.

In spant: MR Spectroscopy Analysis Tools

Apply Voigt line-broadening to match a reference spectrum.

Description

Apply Voigt line-broadening to match a reference spectrum.

Usage

match_lineshape(
  mrs_data,
  ref,
  xlim,
  init_lb = 0.2,
  init_lg = 0.5,
  min_lb = 0,
  max_lb = Inf,
  min_lg = 0,
  max_lg = 1
)

Arguments

mrs_data	data to be broadened, note the linewidth of this spectrum must be narrower than the ref spectrum.
ref	reference data to match.
xlim	spectral region to match, eg c(5.2, 4.1) could be used to match two water resonances.
init_lb	initial value for the amount of line-broadening to apply (Hz).
init_lg	initial value for the Lorentz-Gauss lineshape parameter.
min_lb	minimum value for the amount of line-broadening to apply (Hz).
max_lb	maximum value for the amount of line-broadening to apply (Hz).
min_lg	minimum value for the Lorentz-Gauss lineshape parameter.
max_lg	maximum value for the Lorentz-Gauss lineshape parameter.

Value

a list containing the matched mrs_data, difference spectra and optimisation results.

spant documentation built on Nov. 5, 2025, 5:22 p.m.