Adaptation Methods

DirectStandardization	Direct Standardization (DS) is a transformer used for domain adaptation (calibration ) applications.
PiecewiseDirectStandardization	Piecewise Direct Standardization (PDS) is a transformer used for domain adaptation (calibration) applications.
SpectralSpaceTransform	Spectral Space Transform (SST) is a transformer used for domain adaptation (calibration) applications.
XAxisInterpolator	Interpolate every row of X onto a shared common_x_axis.