search for: dtw

Dear R community, I would like to introduce the package "dtw" for computing Dynamic Time Warping (DTW) alignments and related algorithms on timeseries. The DTW algorithm computes the time axis stretch which optimally maps one timeseries (query) onto another (template); it outputs the resulting cumulative distance between the two inputs, which is freque...

Dear R community, I would like to introduce the package "dtw" for computing Dynamic Time Warping (DTW) alignments and related algorithms on timeseries. The DTW algorithm computes the time axis stretch which optimally maps one timeseries (query) onto another (template); it outputs the resulting cumulative distance between the two inputs, which is freque...

Hello. I'm looking for a fast way to group by similarity many (5-10k) long (2-10k points) time series. Using PAM on distance matrix obtained via as.dist(1-abs(cor(data))) produces usable results but it's rather slow and doesn't catch slightly shifted time series. DTW implementation from package 'dtw' is orders of magnitude slower even with global window constraints which renders it unusable for me. Is there any fast and robust to noise and slight misalignment time series comparison implementation for R? There are fast algorithms that are able to deal...

Hello, can anybody tell me if there exists functions for DTW in R? I didn't find anything at CRAN's search page... Also any information about packages for time series preprocessing (for pattern matching) would be useful... Thanks a lot, ondra

I remember seeing something somewhere that described how I could get SIP header information with Asterisk. It was a command or a variable. Anyone know what it is? Thanks. Doug.

Hello R helpers, I'm trying to use Mahalanobis distance to calculate distance of two time series, to make some comparations with euclidean distance, DTW, etc, but I'm having some dificults. I have, for example, two objects: s.1 <- c( 5.6324702, 1.3994353, -3.2572327, -3.8311846, -1.2248719, 0.9894694, -2.2835332, -5.1969285, -5.2823988, -3.1499400, -1.7307950, 2.8221209, 0.7005370, 4.9601216, 9.4527303) s.2 <- c(-1.000489e-03, -8...

.... In previous frameworks I have used (WebObjects, php) a full search page (which leads into a list view populated with search results) was part of the CRUD that was either dynamically or statically created after specifying table/object schema. In WebObjects this was a very cool feature of DTW (direct to web), in php I rolled my own crud generator with searching capabilities even though I''m sure plenty exist already. I''ve looked through the archives and google and have found mentions of the lack of a search page in Rails, but as yet no solutions. I''m won...

Hello, I have a issue here! I need to find the offset or shift between two data sets. Each data set does not start nor end at the same time and dont even have the same sampling interval (which by the way isn't constant in any of the data set). It must be known that the data expressed in both the data set are comming from the same sensor so they should be the same! What I am looking for

I'm in the process of converting some S3 methods to S4 methods. I have this function : setGeneric("enrichmentCalc", function(rs, organism, seqLen, ...){standardGeneric("enrichmentCalc")}) setMethod("enrichmentCalc", c("GenomeDataList", "BSgenome"), function(rs, organism, seqLen, ...) { ... ... ... })