ptw: Parametric Time Warping

Parametric Time Warping aligns patterns, i.e. it aims to put corresponding features at the same locations. The algorithm searches for an optimal polynomial describing the warping. It is possible to align one sample to a reference, several samples to the same reference, or several samples to several references. One can choose between calculating individual warpings, or one global warping for a set of samples and one reference. Two optimization criteria are implemented: RMS (Root Mean Square error) and WCC (Weighted Cross Correlation). Both warping of peak profiles and of peak lists are supported.

AuthorJan Gerretzen <j.gerretzen@science.ru.nl>, Paul Eilers <p.eilers@erasmusmc.nl>, Hans Wouters, Tom Bloemberg <t.bloemberg@science.ru.nl>, Ron Wehrens <ron.wehrens@gmail.com>
Date of publication2015-08-21 11:48:26
MaintainerRon Wehrens <ron.wehrens@gmail.com>
LicenseGPL (>= 2)
Version1.9-11

View on CRAN

Files in this package

ptw
ptw/TODO
ptw/inst
ptw/inst/CITATION
ptw/inst/NEWS
ptw/inst/doc
ptw/inst/doc/stickPTW.pdf
ptw/inst/doc/stickPTW.Rnw
ptw/src
ptw/src/approx.c
ptw/src/smth.c
ptw/src/wcc.c
ptw/src/wccStick.c
ptw/NAMESPACE
ptw/demo
ptw/demo/demo1.R
ptw/demo/demo2.R
ptw/demo/demo3.R
ptw/demo/00Index
ptw/data
ptw/data/gaschrom.RData
ptw/data/lcms.RData
ptw/data/datalist
ptw/R
ptw/R/select.traces.R ptw/R/whit2.R ptw/R/calc.multicoef.R ptw/R/baseline.corr.R ptw/R/plot.ptw.R ptw/R/calc.zerocoef.R ptw/R/bestref.R ptw/R/ptw.R ptw/R/difsm.R ptw/R/wccStick.R ptw/R/padzeros.R ptw/R/predict.ptw.R ptw/R/summary.ptw.R ptw/R/RMS.R ptw/R/WCC.R ptw/R/whit1.R ptw/R/asysm.R ptw/R/pmwarp.R ptw/R/coda.R ptw/R/warp.sample.R ptw/R/ptwgrid.R
ptw/vignettes
ptw/vignettes/stickPTW-010.pdf
ptw/vignettes/stickPTW-004.pdf
ptw/vignettes/stickPTW-002.pdf
ptw/vignettes/stickPTW-013.pdf
ptw/vignettes/stickPTW-011.pdf
ptw/vignettes/stickPTW-025.pdf
ptw/vignettes/stickPTW-003.pdf
ptw/vignettes/ptwbib.bib
ptw/vignettes/stickPTW-019.pdf
ptw/vignettes/stickPTW-009.pdf
ptw/vignettes/stickPTW-012.pdf
ptw/vignettes/stickPTW.Rnw
ptw/MD5
ptw/build
ptw/build/vignette.rds
ptw/DESCRIPTION
ptw/man
ptw/man/calc.multicoef.Rd ptw/man/ptw.Rd ptw/man/calc.zerocoef.Rd ptw/man/wcc.Rd ptw/man/plot.ptw.Rd ptw/man/predict.ptw.Rd ptw/man/lcms.Rd ptw/man/baseline.corr.Rd ptw/man/mzchannel2pktab.Rd ptw/man/difsm.Rd ptw/man/select.traces.Rd ptw/man/whit1.Rd ptw/man/padzeros.Rd ptw/man/warp.time.Rd ptw/man/gaschrom.Rd ptw/man/bestref.Rd ptw/man/coda.Rd ptw/man/asysm.Rd ptw/man/RMS.Rd ptw/man/ptwgrid.Rd ptw/man/whit2.Rd

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