Data Editing Scaling and Preprocessing

alignmat - Alignment of matrices and N-way arrays.

alignpeaks - Calibrates wavelength scale using standard peaks.

alignspectra - Calibrates wavelength scale using standard spectrum.

arithmetic - Apply simple arithmetic operations to all or part of dataset.

asinhx - Arcsinh transform.

asinsqrt - Arcsin square root transformation.

auto - Autoscales matrix to mean zero unit variance.

baseline - Subtracts a polynomial baseline offset from spectra.

baselineds - Wrapper for baselining functions (wlsbaseline, baseline, whittaker, datafit).

baselinew - Baseline using windowed polynomial filter.

batchalign - Convert data columns based on matching ref col to target vector.

batchdigester - Parse wafer or batch data into MPCA or Summary PCA form.

batchfold - Transform batch data into dataset for analysis.

batchmaturity - Batch process model and monitoring.

classcenter - Centers classes in data to the mean of each class.

coadd - Reduce resolution through combination of adjacent variables or samples.

datafit_engine - Asymmetric least squares with smoothing, baselining & robust fitting.

delsamps - Deletes samples (rows) or variables (columns) from data matrices.

deresolv - Changes high resolution spectra to low resolution.

editds - Editor for DataSet Objects.

excludemissing - Automatically exclude too-much missing data in a matrix.

glog - Generalized log transform.

glsw - Generalized least-squares weighting/preprocessing.

gscale - Group/block scaling for a single or multiple blocks.

gscaler - Applies group/block scaling to submatrices of a single matrix.

lamsel - Determines indices of wavelength axes in specified ranges.

logdecay - Mean centers and variance scales a matrix using the log decay of the variable axis.

lsq2top - Fits a polynomial to the top/(bottom) of data.

mdcheck - Missing Data Checker and infiller.

med2top - Fits a constant to top/(bottom) of data.

medcn - Median center scales matrix to median zero.

minmax - Scale rows or columns of a matrix to range from 0 to 1.

mncn - Scale matrix to mean zero.

mscorr - Multiplicative scatter/signal correction (MSC).

normaliz - Normalize rows of matrix.

npreprocess - Preprocessing of multi-way arrays.

oscapp - Applies OSC model to new data.

osccalc - Calculates orthogonal signal correction (OSC).

poissonscale - Perform Poisson scaling with scaling offset.

polyinterp - Polynomial interpolation, smoothing, and differentiation.

pqnorm - Probabilistic Quotient Normalization for rows of a matrix.

pr_entropy - Pattern recognition entropy (PRE), Shannon entropy, transform.

preprocess - Selection and application of standard preprocessing structures.

preprocessiterator - Create array of preprocessing combinations.

preprouser - User-defined preprocessing methods.

registerspec - Shift spectra based on expected peak locations.

rescale - Scales data back to original scaling.

savgol - Savitzky-Golay smoothing and differentiation.

savgolcv - Cross-validation for Savitzky-Golay smoothing and differentiation.

scale - Scales data using specified means and std. devs.

shuffle - Randomly re-orders matrix and multiple blocks rows.

snv - Standard normal variate scaling.

specedit - GUI for selecting spectral regions on a plot.

super_reduce - Eliminates highly correlated variables.

unfoldm - Rearranges (unfolds) an augmented matrix to row vectors.

unfoldmw - Unfolds multiway arrays along specified order.

windowfilter - Spectral filtering.

wlsbaseline - Weighted least squares baseline function.

(Sub topic of Categorical_Index)