Function reference • alkahest

Signal Processing

signal_bind(): Bind

signal_correct(): Baseline Correction

signal_drift(): Drift Intensities

signal_mean(): Mean Intensities

signal_shift(): Shift the X Scale

signal_select() signal_slice(): Subset

Baseline Estimation

baseline_asls(): Asymmetric Least Squares Smoothing

baseline_linear(): Linear Baseline Estimation

baseline_peakfilling(): 4S Peak Filling

baseline_polynomial(): Polynomial Baseline Estimation

baseline_rollingball(): Rolling Ball Baseline Estimation

baseline_rubberband(): Rubberband Baseline Estimation

baseline_snip(): SNIP Baseline Estimation

Smoothing

smooth_likelihood(): Penalized Likelihood Smoothing

smooth_loess(): Loess Smoothing

smooth_rectangular(): Rectangular Smoothing

smooth_savitzky(): Savitzky-Golay Filter

smooth_triangular(): Triangular Smoothing

smooth_whittaker(): Whittaker Smoothing

Integration

integrate_rectangle(): Rectangle Rule

integrate_trapezoid(): Trapezoidal Rule

Scaling and Normalization

rescale_area(): Normalize intensities by AUC

rescale_range() rescale_min() rescale_max(): Rescales intensities to have specified minimum and maximum

rescale_snv(): Standard Normal Variate (SNV) Transformation

rescale_total(): Rescale intensities to sum to a specified value

rescale_transform(): Transform Intensities

Resample

resample_bin(): Bin

resample_down(): Downsample

resample_interpolate(): Linearly Interpolate

Windows

window_sliding(): Sliding Windows

window_tumbling(): Tumbling Windows

Replacement

replace_negative(): Replace Negative Values

replace_threshold(): Replace Values Below a Given Threshold

Peaks Detection

peaks_find(): Find Peaks

peaks_fwhm(): Half-Width at Half-Maximum

Specialized Tools

ka2_strip_penalized(): Strip XRD ka2

Datasets

BEGe: Gamma-Ray Spectrometry

LaBr: Gamma-Ray Spectrometry

Raman: Raman Spectroscopy

XRD: Powder X-ray Diffraction