search for: represen

Hi, I have been using some of the functions in r for classification purposes, chiefly lda, qda, knn and nnet. My problem is that the only one I can figure out how to represenent graphically is lda (using plot.lda). I have tried 'fooling' this function into accepting qda input for plotting but to no avail. I wonder if you have any suggestions? Thanks alot, Anne Marie Power Marine lab. Dept. Zooogy & Animal Ecology, University College Cork Ireland

Greetings, I would like to use some of the spatial statistics functions in R, but I am having trouble entering data. My data is already in a distance matrix format, not an X Y coordinate format (each Xij cell in the matrix represens the distance from point i to j). Does anyone know of a way to convert a distance matrix to a ppp object in spatstat, or an X,Y coordinate system for other packages? Thanks, Jesse [[alternative HTML version deleted]]

...rom-scratch alternate implementation of the theora codec is now publicly available from our subversion repository. http://svn.xiph.org/experimental/derf/theora-exp/ This exciting new codebase promises superiour performance, and the encoder is capable of higher quality output than the current represenation, taking advantage of the bitstream extension we've added to the original VP3 format. Unfortunately, the encoder is currently broken, but this is still a good codebase for playing with new features. Thanks to Derf for making it available. -r --- >8 ---- List archives: http://www.xip...

...;> VK> just wondering what are the reasons for having such >> VK> limitation. >> >> This limitation and its possible remedies are an interesting topic, >> but really not for R-help: >> >> It will be a lot about C programming the internal represenation of R >> objects, etc. >> Very fascinating .... but for R-devel. >> >> "See you there!" >> Martin >> >> ______________________________________________ >> R-help@r-project.org mailing list >> https://stat.ethz.ch/mailman...

...esses). Again. Some test cases could already be shown in the application. > 7w Learn how optimization process work for this examples. I do not think you need to optimize here anything. It should be sufficient to recognize code that includes such statements and transform them into a polyhedral represenation. Optimizers like Pluto will automatically calculate the relevant optimizations, if you generate a correct polyhedral representation. > 8-10w Enable tests one by one. By 'Enable tests' do you mean implementing support for min/max .. expressions? > 11w Estimate SPEC 264ref per...

I think this is a bug in the xl toolchain. lspci -s 0000:12:0.* 12:00.0 Display controller: ATI Technologies Inc Device 671d 12:00.1 Audio device: ATI Technologies Inc Device aa80 sudo xm pci-list-assignable-devices 0000:13:00.0 0000:13:00.1 0000:12:00.0 0000:12:00.1 So there is a multi-function device (actually one ASIC of a AMD Radeon 6990 card). It has two function addresses 0 = Display

Hi. My plan would be: 1w Study sources of Polly and LLVM docs relating to analysis. 2w Create tests which demonstrate problems with NSW/NUW 3-4w Fix the handling of wrap overflows. 5w Complete middle term paperwork. 6w Create tests for each of cases which are not currently optimized (e.g. have min/max, sext/zext, trunc or unsigned comparisons in the loop bounds or memory accesses). 7w Learn how

The Random LLVM Notes lists <http://nondot.org/sabre/LLVMNotes/ExceptionHandlingChanges.txt> Improvements to EH support ( <http://llvm.org/PR1269> PR1269). See whether the approach of FIRM, an Intermediate Represenation based on SSA, is useful Chapter 2.3 Exceptions of Documentation of the Intermediate Representation. Accessible via http://citeseer.ist.psu.edu/550469.html Greetings, pet-ro -------------- next part -------------- An HTML attachment was scrubbed... URL: <http:/...

...ases could already be shown in the application. > >> 7w Learn how optimization process work for this examples. > > I do not think you need to optimize here anything. It should be sufficient > to recognize code that includes such statements and transform them into a > polyhedral represenation. Optimizers like Pluto will automatically calculate > the relevant optimizations, if you generate a correct polyhedral > representation. > >> 8-10w Enable tests one by one. > > By 'Enable tests' do you mean implementing support for min/max .. > expressions? >...

Hi, We are in the business of developing/productizing Multimedia codecs for embedded systems. Recently, Vorbis has gained good popularity. We are also developing it. But we face few problems related to patents. Vorbis claims to be patent free. Is there any particular search made for possible patent infringements and corresponding report published? We need to convince our customers sometime

Hi, I ran into a problem wherein my mail client (RoundCube) would not display a message from a Dovecot IMAP server (claiming that the message had no content). The raw source of the message looked fine, but the body structure returned by Dovecot only had the first text/plain part and not the alternative text/html part. The message looks like: ... headers removed ... X-Mailer: Lotus

...e calculations performed to yield x imply that mathematically it should be an integer , but due to round-off errors, it might not be (and so in either direction). The error is however small, so round(x) will yield the appropriate integer value. Moreover, this integer values is guaranteed to be representable by an 'integer' class, that is -2^31 < x < 2^31, and logically it is an integer anyway. So I want to convert x from class 'numeric' to 'integer'. What is the most elegant, but always correct way, to achieve this conversion ? What comes to mind is of course som...

...there are no support for wrap flags NUW, NSW, NW. It can be unsafe if we doesn't provide this information in polly IR. So I will mainly improve AffineSCEVIterator. Now I should to show test cases indicating that - loops with above-listed types expressions cannot be converted to the polyhedral representation - wrap flags are ignored and this can bring to broken programs (in fact, here I need some clarification) Do I understand correctly? I have some QA skills. Is Polly in need of autoconf, cmake, buildbot setting up? Maybe this will be my tasks for first weeks 5 апреля 2011 г. 16:39 пользоват...

Dear all R users, I am really struggling to determine the most appropriate lag order of ARIMA model. My understanding is that, as for MA [q] model the auto correlation coeff vanishes after q lag, it says the MA order of a ARIMA model, and for a AR[p] model partial autocorrelation vanishes after p lags it helps to determine the AR lag. And most appropriate model choosed by this argument gives

...ce to MASS as the third entry. When programming in any language, I now find it quicker to search for syntax (and other) help by Googling than to pull the reference manual off the shelf or start up an online help file. -- Mike Prager, NOAA, Beaufort, NC * Opinions expressed are personal and not represented otherwise. * Any use of tradenames does not constitute a NOAA endorsement. ------------------------------ Message: 52 Date: Wed, 21 Nov 2007 18:16:46 +0100 (CET) From: Marc Bernard <bernarduse1 at yahoo.fr> Subject: [R] Choosing the right model To: r-help at stat.math.ethz.ch Message-I...