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

Functions

asysm Man page
baseline.corr Man page
bestref Man page
calc.multicoef Man page
calc.zerocoef Man page
coda Man page
coef.ptw Man page
difsm Man page
gaschrom Man page
gaschrom.st Man page
lcms Man page
lcms.pks Man page
mz Man page
mzchannel2pktab Man page
padzeros Man page
pktab2mzchannel Man page
plot.ptw Man page
predict.ptw Man page
print.ptw Man page
print.stptw Man page
ptw Man page
ptwgrid Man page
RMS Man page
select.traces Man page
stptw Man page
summary.ptw Man page
summary.stptw Man page
time Man page
wac Man page
wac.st Man page
warp.time Man page
wcc Man page
WCC Man page
wcc.st Man page
whit1 Man page
whit2 Man page

Files

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

Questions? Problems? Suggestions? or email at ian@mutexlabs.com.

Please suggest features or report bugs with the GitHub issue tracker.

All documentation is copyright its authors; we didn't write any of that.