shift_correction: Shift correction

In specmine: Metabolomics and Spectral Data Analysis and Mining

Description

Shifts the spectra according to a specific method.

Usage

shift_correction(dataset, method = "constant", shift.val = 0, 
interp.function = "linear", ref.limits = NULL)

Arguments

dataset	list representing the dataset from a metabolomics experiment.
method	string that indicates the shifting method. It can be: "constant" uses a constant shift that is added to the x-values "interpolation" uses interpolation according to "interp.function"
shift.val	value of the shift (for constant and interpolation methods); can be a single value for all spectra, can be the string "auto", the shifts are automatically determined or a vector with the size of the number of samples with the shifts for each spectra.
interp.function	string that represents the interpolation function, can be "linear" or "spline".
ref.limits	vector with 2 elements that represents the reference limits to calculate the shifts.

Value

Returns the dataset with the spectras shifted.

specmine documentation built on Sept. 21, 2021, 5:06 p.m.