search for: wiener

Displaying 20 results from an estimated 215 matches for "wiener".

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2010 Dec 01
1
Wiener-Granger Causality Test in R
Hello dudes. I'm developing VAR analysis based on suggestions made by Horváth in its paper Canonical Correlation Analysis and Wiener-Granger Causality Tests. That's the reason I'm looking for if there's any R package to develop Wiener - Granger Causality Test. Thanks a lot for your unvaluable help. Regards from Mexico [[alternative HTML version deleted]]
2009 Nov 02
1
Lattice: Saving Plots with Legend
...end doesn't png("test.png") parallel(data) legend("topright",legend=c("let's","rock"),col=c("black","red"),pch=1) dev.off() #################################################### Thanks for your help, Daniel Koffler Fachhochschule Wiener Neustadt f?r Wirtschaft und Technik Ges.m.b.H. University of Applied Sciences Wiener Neustadt for Business and Engineering Ltd., Austria Johannes Gutenberg-Stra?e 3 2700 Wiener Neustadt Austria, Europe ATU: 37772406 Firmenbuchnummer: 77005v Firmenbuchgericht: Landesgericht Wiener Neustadt DVR: 0798...
2002 May 14
2
least summed square distance + fit
...s and translates my subject matrix so that the error (computed by the errorfunction) is minimized. Since I am new to R and actually new to that problem, I would be glad if someone could tell me if there is a precompiled fitting procedure that fits my requirements. greetinx jan -- Jan Malte Wiener Max-Planck-Institute for Biological Cybernetics Spemannstr. 38, 72076 Tuebingen, Germany Tel.: +49 7071 601 631 Email: jan.wiener at tuebingen.mpg.de -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-F...
2006 Jun 17
5
Having trouble listing tiers of categories
...es". Every row has a "parent" field to note if the entry is the sub-category of another (never goes deeper than 1 level). So there might be something like this: id | name | parent 1 Dog 0 2 Pug 1 3 Siamese 5 4 Shih Tzu 1 5 Cat 0 6 Wiener Dog 1 7 Persian 5 I''d like to list it like Dog --Pug --Shih Tzu --Wiener Dog Cat --Siamese --Persian Right now it''s only listing them in one long list. But I''d like to list each parent category and have the subcats listed under them. Any ideas? -- Posted v...
2007 Dec 06
2
Any package for deconvolution?
I want to run deconvolution of a time series by an impulse or point-spread function through Wiener filter, regularized filter, Lucy-Richardson method, or any other approaches. I searched the CRAN website and the mailing list archive, but could not find any package for such a deconvolution analysis. Does anybody know an existing R function for deconvolution? TIA, Gang
2002 Oct 29
5
unix environment variables under R
hi, i am working on a little R-project with a couple od other guys.we use CVS, but everyone keeps the R-source files in different locations in his home-directory. of course this causes trouble when sourcing R-files. i thought a UNIX environment variable could be the solution, but R doesn't seem to know about the environment variables. e.g. >> source("$PROJECT/xxx.R")
2005 Aug 24
0
[Fwd: Re: reading "special" text files]
-- Dr. Jan Malte Wiener Max-Planck-Institute for Biological Cybernetics Spemannstr. 38, 72076 Tuebingen, Germany tel.: +49 7071 601 631 email: jan.wiener at tuebingen.mpg.de url: www.kyb.tuebingen.mpg.de/~malte -------------- next part -------------- An embedded message was scrubbed... From: Jan Wiener <jan.wiener at t...
2007 Sep 24
2
calculating/plotting error ellipses
hello, sorry for posting what may be a simple question: i do have a matrix of coordinates (positional judgments, see below) and now want to calculate and plot the corresponding error ellipse. can anyone help me with the exact steps/syntax? > xyDat X Y 1 -0.49 -2.13 2 0.91 0.48 3 0.20 -2.80 4 -0.76 -3.23 5 -0.36 2.50 6 1.38 1.24 7
2010 Jun 04
2
Denoise causing drain pipe effect in audio
Hi Jean Thanks for the reply. We expect to use the codec in an environment where we expect very high background noise where high noise suppression will be needed. In a situation like a soccer match. Is there a way of retaining high noise suppression and still getting better audio quality. Your pointers will be of great help. Thanks, Gurinder On 6/4/10, Jean-Marc Valin <jean-marc.valin at
2002 Oct 29
4
sourcing the content of directories
hi, is there a way to source all R-files that reside in a given directory with a single R-call ? greetinx jan -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To:
2010 Jun 04
0
Denoise causing drain pipe effect in audio
...n the two microphones). John Ridges Henry Gomersall <whg21 at cam.ac.uk> wrote: > In general, if you have information about the nature of the noise you > are trying to suppress, you can do much better than just assuming white > noise. > > This is a classic example of where a Wiener filter might be useful. > Typically, you would use a second microphone to capture just the noise, > and then use that to perform some regularisation on the speech signal - > you would suppress parts of the signal spectrum where the signal to > noise ratio is low. The Wiener filter is we...
2010 Jun 04
0
Denoise causing drain pipe effect in audio
...ally know how the noise suppression in speex works, but I have some knowledge in the area of noise suppression. In general, if you have information about the nature of the noise you are trying to suppress, you can do much better than just assuming white noise. This is a classic example of where a Wiener filter might be useful. Typically, you would use a second microphone to capture just the noise, and then use that to perform some regularisation on the speech signal - you would suppress parts of the signal spectrum where the signal to noise ratio is low. The Wiener filter is well studied and under...
2002 Jun 24
1
multiple graphics in separate windows
...le to generate a graphic, then save it (e.g. as eps) and then generate a new plot that always overwrites the old graphic. I am aware of the fact that I can generate multiple plots in a single graphics window, but this is not what i am looking for .. thanks for help, greetinx jan -- Jan Malte Wiener Max-Planck-Institute for Biological Cybernetics Spemannstr. 38, 72076 Tuebingen, Germany Tel.: +49 7071 601 631 Email: jan.wiener at tuebingen.mpg.de -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-F...
2001 Oct 30
2
moving dimnames when reassigning
...are to permute the row and column names separately (which is what I'm doing), or to construct indices to do things the second way. If this was a design decision, I'd like to understand the reason for it better. If it's unintended, I'll turn this into a bug report. Regards, Matt Wiener -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at sta...
2005 Jul 21
3
heatmap color distribution
Hi all, I've got a set of gene expression data, and I'm plotting several heatmaps for subsets of the whole set. I'd like the heatmaps to have the same color distribution, so that comparisons may be made (roughly) across heatmaps; this would require that the color distribution and distance functions be based on the entire dataset, rather than on individual subsets. Does
2002 Sep 06
1
acutally a statistics question
...m a one-sample t-test against a chance level (e.g. 0.5). obviously my data are not normally distributed -> so i guess my question really is: which non-parametric test does test a distribution against a given theoretical value (and of course-> does it exist in R) ? thanks for any help, jan wiener -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat...
2001 Jul 20
1
loading .RData on distributed system
...ked through the documentation, and a little bit in some of the source, and haven't been able to find how exactly .RData is read. Is this part of the program? Is it something I can set? Is it something strange happening with the file system on the beowulf cluster? Any help appreciated. Matt Wiener -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at sta...
2005 Sep 09
2
adding text to the corner of a lattice plot
Dear R community, I am using R 2.1.1 on Windows XP, package lattice Version 0.12-5, and want to add text (sort of a dat-stamp actually) to the lower left corner of a lattice plot, prefarably _after_ the plot has been created. Here is a simple example what I do in base graphics: # base graphics: > plot(rnorm(100), rnorm(100)) > mtext(as.character(Sys.Date()), side = 1,line = -2, outer = T,
1999 Feb 16
3
graphics bug: type="l" (PR#120)
...crucial. The cutoff point appears to be about 65,000 points. (70,000 points demonstrates the cutoff; with 50,000 points there's no cutoff.) As far as I can tell, the problem only occurs when using the option type="l". It's unaffected by color, line type, and line width. Matt Wiener -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-devel-request@sta...
2007 May 18
1
Trouble compiling XML package
...ndicate needs to be changed? I checked the mailing list archives, but didn't find anything. I'm hoping there's an alternative to changing libxml2, with all the cascading requirements that would bring (and no guarantee, with what I know now, that that's the problem). Thanks, Matt Wiener > version _ platform x86_64-unknown-linux-gnu arch x86_64 os linux-gnu system x86_64, linux-gnu status major 2 minor 4.1 year 2006 month 12 day 18 svn rev 40228 language R version.str...