Parametric Time Warping

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Documentation for package ‘ptw’ version 1.9-16

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ptw-package Parametric Time Warping
asysm Trend estimation with asymmetric least squares
baseline.corr Baseline Correction using asymmetric least squares
bestref Identification of optimal reference
calc.multicoef Calculation of warping coefficients when applying more than one warping function successively
calc.zerocoef Correction for warping coefficients when using zeropadding
coda Chromatogram selection using the CODA algorithm
coef.ptw Parametric Time Warping
difsm Smoothing with a finite difference penalty
gaschrom 16 calibration GC traces
gaschrom.st 16 calibration GC traces
lcms Parts of 3 proteomic LC-MS samples
lcms.pks Parts of 3 proteomic LC-MS samples
mz Parts of 3 proteomic LC-MS samples
mzchannel2pktab Conversion between peak lists from hyphenated MS (LCMS, GCMS, ...) data and input for 'stptw'.
padzeros Pad matrix with zeros
pktab2mzchannel Conversion between peak lists from hyphenated MS (LCMS, GCMS, ...) data and input for 'stptw'.
plot.ptw Plot a ptw object
predict.ptw Prediction of warped signals
print.ptw Parametric Time Warping
print.stptw Parametric Time Warping
ptw Parametric Time Warping
ptwgrid Calculate RMS or WCC values on a grid
RMS Quality criteria for comparing patterns with shifts
select.traces Select traces from a data set according to several criteria
stptw Parametric Time Warping
summary.ptw Parametric Time Warping
summary.stptw Parametric Time Warping
time Parts of 3 proteomic LC-MS samples
wac Weighted auto- and cross-correlation measures
wac.st Weighted auto- and cross-correlation measures
warp.time Transform time according to a given warping function
WCC Quality criteria for comparing patterns with shifts
wcc Weighted auto- and cross-correlation measures
wcc.st Weighted auto- and cross-correlation measures
whit1 Weighted Whittaker smoothing with a first order finite difference penalty
whit2 Weighted Whittaker smoothing with a second order finite difference penalty