search for: quesada

...a to have R-help added there. Quoting from their site: "To get a new mailing list added, use the subscription form. Almost any mailing list can be added. Just include subscription information. Mailing list archives can be imported into Gmane." What do you think? -- Cheers, -Jose -- Jose Quesada, PhD. j.quesada@sussex.ac.uk Dept. of Psychology http://www.andrew.cmu.edu/~jquesada Sussex University Brighton, UK [[alternative HTML version deleted]]

...multiplication should do. I have tried apply(x,2,"*") I know this must be trivial, but I get: Error in FUN(newX[, i], ...) : invalid unary operator The help for apply states that unary operators must be quoted. I tried single quotes too, with the same results. Thanks, -Jose -- Jose Quesada, PhD. http://www.andrew.cmu.edu/~jquesada

...m an individual chi-square test for marker 1, but if n is too large (i.e. 4000 markers), I would like to write the code to make it perform tests for each marker types and give me an output table with the p-values for each markers. I would appreciate any suggestions you may have. Thanks! Tania Quesada -- QUESADA,TANIA

...#dgCMatrix" (the first of the signatures shown will be used) diagonalMatrix#CsparseMatrix ddenseMatrix#CsparseMatrix in: .findInheritedMethods(classes, fdef, mtable) I got 4 other copies of the same warning. Will play around a bit more... This is really strange. Thanks -- Jose Quesada, PhD. http://www.andrew.cmu.edu/~jquesada

...? Which is the right environment for large social networks? Some packages have bindings for both languages, and of course, there's a reliable way to bind the two languages together, Rpy: http://rpy.sourceforge.net/ So this may not be a big deal which one to pick. Thanks, -Jose -- Jose Quesada, PhD. Max Planck Institute, Human Development, Berlin http://www.andrew.cmu.edu/~jquesada

...fault data editor. I could of course dump to a txt file, and look at it with an editor/spreadsheet, but after doing it a few times, it gets boring. Maybe it's time for me to write a function to automatize the process? I'd ask first in case there's an easier way. Thanks! -Jose -- Jose Quesada, PhD. Max Planck Institute, Center for Adaptive Behavior and Cognition -ABC-, Lentzeallee 94, office 224, 14195 Berlin http://www.josequesada.name/

...foo are similarities But then pam() will complain like this: " x is not of class dissimilarity and can not be converted to this class." Can anyone help me? I also appreciate any advice about other clustering algorithms that can accept this type of input. Thanks a lot in advance, Jose Quesada Dept. of Experimental Psychology, University of Granada, Spain. Visitor researcher at the institute of cognitive science University of Colorado, Boulder, Us. -------------- next part -------------- A non-text attachment was scrubbed... Name: quesadaj.vcf Type: text/x-vcard Size: 501 bytes Desc:...

...convert with as() the output of selecting one row, am I losing performance? Is there any way to make the resulting vector be a 1-D Matrix object? This solution seems inneficient. Is there an easy way of achieving this with a clever do.call + apply combination? -- Thanks in advance, -Jose -- Jose Quesada, PhD Research fellow, Psychology Dept. Sussex University, Brighton, UK http://www.andrew.cmu.edu/~jquesada

...convert with as() the output of selecting one row, am I losing performance? Is there any way to make the resulting vector be a 1-D Matrix object? This solution seems inneficient. Is there an easy way of achieving this with a clever do.call + apply combination? -- Thanks in advance, -Jose -- Jose Quesada, PhD Research fellow, Psychology Dept. Sussex University, Brighton, UK http://www.andrew.cmu.edu/~jquesada

...o metadata delimiting a block of code and it might be difficult... but grepping through all R-help posts and coloring code would be really nice too. Again, this lands straight into 'nice to have, but not essential' territory. If anyone wants to do this, feel free to. Best, - -J - -- Jose Quesada, PhD. Max Planck Institute, Center for Adaptive Behavior and cognition, Berlin http://www.josequesada.name/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iQIVAwUBSb6RRGMobUVGH+HKAQI2RxAAijNIj7qlBogc9M6lhQ2Ah...

Dear all, I'm starting to learn R, but I'm already programing for a while, using ViM as editor. Therefore I'd like to be able to use R together with ViM. My question now is, whether there are already people out there knowing how to do this in a similar easy way as with Emacs, and if those would be willing to share this knowledge. I did already research on the web on this topic,

...istants. We work on a mixed environment of R and Java. Skills on both would be a plus, but some R knowledge (or willingness to learn) should suffice. Requirements: You must be enrolled in a German University. You must have enough time to work 20 hrs per week on our project Please contact: Dr Jose Quesada, quesada at gmail.com Best, - -Jose - -- Jose Quesada, PhD. Max Planck Institute, Center for Adaptive Behavior and Cognition -ABC-, Lentzeallee 94, office 224, 14195 Berlin http://www.josequesada.name/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla...

...atrix) a = Matrix(c(1,0,3,0,0,5), 10, 10) a = as(a, "CsparseMatrix") writeMM(a, "kk.mm") b = readMM("kk.mm") Error in validObject(.Object) : invalid class "dgTMatrix" object: all row indices must be between 0 and nrow-1 Thoughts? Thanks, -Jose -- Jose Quesada, PhD. http://www.andrew.cmu.edu/~jquesada

...I found that (at times) I like better how chm help looks. Since there are chm viewers under linux, using chm help files should be possible. Has anybody tried to set R so it opens chm by default? I'm sure there's some flag or Rprofile var that could get this done. Thanks, -- -Jose -- Jose Quesada, PhD http://josequesada.name

...curriculum alongside our world-class mentors and partners. Towards the end we provide a networking event with top-tier technology companies, where you will show off your new skills and portfolio project, likely leaving with a career-changing job. Looking forward to hear from you, - Jose -- Jose Quesada, PhD, Director, Data Science Retreat @quesada <https://twitter.com/quesada>, @dataScienceRet<https://twitter.com/datascienceret> http://datascienceretreat.com ??? [[alternative HTML version deleted]]

...# make it column based: mm <- as(mm, "CsparseMatrix") a=mm[1,,drop=F]#this takes close to 30 seconds on a 3Ghz machine Thanks, - -Jose - -- === I'm learning a new keyboard layout. I type slowly. Please excuse typos and slower-that-usual responses. Thanks for your patience=== Jose Quesada, PhD. Max Planck Institute, Center for Adaptive Behavior and Cognition -ABC-, Lentzeallee 94, office 224, 14195 Berlin http://www.josequesada.name/ http://twitter.com/Quesada -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) iQIcBAEBAgAGBQJK43ZUAAoJEGMobUVGH+HKsZEP/1+R/x2Qv9Kc1LYNP0...

..."Error in pam(d, k = 2, diss = TRUE) : x is not of class dissimilarity and can not be converted to this class." How can I convert the matrix d into a dissimilarity matrix suitable for "pam"? I'm aware of a response by Friedrich Leisch to a similar question posed by Jose Quesada (quoted below). But as I understood the answer, the dissimilarity matrix there is calculated on the basis of (random) data. Thank you in advance. Hans __________________________________ />>>>> On Tue, 09 Jan 2001 15:42:30 -0700, / />>>>> Jose Quesada (JQ) wrote: /...

Dear R users, People who uses vim in Linux/Unix may be interested in checking the plugin for R that I'm developing: http://www.vim.org/scripts/script.php?script_id=2628 The plugin includes omni completion for R objects, code indentation and communication with R running in a terminal emulator (xterm or gnome-terminal). This last feature was already present in Johannes Ranke's plugin.

...iew(head(a, 500)), which kind of defeats the point of view. Is this behavior by design? If so, wouldn't it be better to make it optional (as it breaks GUI conventions of mostly any OS for scrolling behavior)? An argument for view to turn this off would be great. Thanks! Best, -Jose -- Jose Quesada, PhD. Max Planck Institute, Center for Adaptive Behavior and Cognition -ABC-, Lentzeallee 94, office 224, 14195 Berlin http://www.josequesada.name/

...spose the norms, the error dissapears, but the result is 1 x 4 (not 3 x 4 as before). I suspect I'm facing the drop=T as before... Also, it seems that in normal matrix objects %*% behaves the same as *, but in Matrix objects that is not the case. What am I missing? -- Thanks, -Jose -- Jose Quesada, PhD Research fellow, Psychology Dept. Sussex University, Brighton, UK http://www.andrew.cmu.edu/~jquesada