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...of a matrix? Is there not an R equivalent to Matlab's 'rank()'? I've been browsing for a time now and I can't find anything, so any help will be greatly appreciated. Best regards! -- -- Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte Department of Computer Science and Artificial Intelligence Universidad de Granada Tel. +34 - 958 - 24 04 67 GRANADA (Spain) Fax: +34 - 958 - 24 00 79

...of the vectors in A, i.e., not considering the case where there are ties amongst this first dimension. Does anyone have a clue about properly applying the lexicographical ordering? Thanks in advance! -- -- Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte Department of Computer Science and Artificial Intelligence Universidad de Granada Tel. +34 - 958 - 24 04 67 GRANADA (Spain) Fax: +34 - 958 - 24 00 79

...------------ ------------ ------------- | | | | | ACF | | PACF | | | | | ------------ ------------- Does anyone know if that is possible at all? Cheers! -- -- -- Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte Department of Computer Science and Artificial Intelligence Universidad de Granada Tel. +34 - 958 - 24 04 67 GRANADA (Spain) Fax: +34 - 958 - 24 00 79

...on Y = prctile(X,p) calculates a value that is greater than p percent of the values in X. The values of p must lie in the interval [0 100]. For instance, if p = 50 then Y is the median of X Thanks!! -- -- -- Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte Department of Computer Science and Artificial Intelligence Universidad de Granada Tel. +34 - 958 - 24 04 67 GRANADA (Spain) Fax: +34 - 958 - 24 00 79

...runtime, but I think that is not very elegant and, overall, I don't know how to do that. If combn() accepted repetitions, it'd be solved also. Any help will be greatly appreciated. Bests, -- -- Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte Department of Computer Science and Artificial Intelligence Universidad de Granada Tel. +34 - 958 - 24 04 67 GRANADA (Spain) Fax: +34 - 958 - 24 00 79

...nish. Is this the proper (but quite awkward) way to proceed or there is an alternative to skip steps 2 to 4? I'm using emacs with ESS under linux. Thank you in advance for your time! Best regards, -- -- Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte Department of Computer Science and Artificial Intelligence Universidad de Granada Tel. +34 - 958 - 24 04 67 GRANADA (Spain) Fax: +34 - 958 - 24 00 79

...the result of A[,1] * B and the second three the result of A[,2] * B. What is the most efficient way to express that? I'm trying to use 'apply' with no success... Thanks for your help! -- -- Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte Department of Computer Science and Artificial Intelligence Universidad de Granada Tel. +34 - 958 - 24 04 67 GRANADA (Spain) Fax: +34 - 958 - 24 00 79

...that I would like to use the Levenberg Marquardt algorithm which is not implemented in R (some discussion about this: http://tolstoy.newcastle.edu.au/R/help/00b/2492.html). Thank you! All the best, -- -- Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte Department of Computer Science and Artificial Intelligence Universidad de Granada Tel. +34 - 958 - 24 04 67 GRANADA (Spain) Fax: +34 - 958 - 24 00 79

Estimados. Hace un tiempo que tengo una duda, estaba pensando en los problemas como optimización de costos, donde hay varias alternativas y librerías, pasando por soluciones inspiradas en energía, genética o algo matemático como matrices y álgebra. Luego aparecen tensorflow, cntk, y otros tantos, de los cuáles https://keras.rstudio.com/ ofrece alternativas para mezclar los mundos por decirlo de

...ndez (< j.para.fernandez en hotmail.com>) escribió: > Buenas Javier, > > > Sobre temas de optimización hay unos apuntes de la universidad de Granada > que son realmente buenos. TE aconsejo que les eches un vistazo (basan su > código en matlab) > > https://elvex.ugr.es/decsai/iaio/ > > > Un saludo > Jesús > ------------------------------ > *De:* R-help-es <r-help-es-bounces en r-project.org> en nombre de Javier > Marcuzzi <javier.ruben.marcuzzi en gmail.com> > *Enviado:* miércoles, 16 de enero de 2019 4:14 > *Para:* r-help-es >...

Hi there! Happy new year to everyone! There's a piece of code that I must write that's driving me crazy. Maybe any of you has previous experiences in something similar. Any help will be greatly appreciated! The problem is as follows. I have a matrix Z with dimensions c(m, p). I have two vectors Gamma and Th with length p. What I want to do is, for j in 1:p, for each pair

Hi everybody, I have been using rsync for quite some time, and I've realized it is a fantastic tool. As it is able to syncronize two CD images, I was wondering, if I could do that with a harddisk partition. Would it be possible to syncronize two partitions at device level somehow? I mean using: # rsync /dev/hda8 /dev/hda9 skipping non-regular file "hda8" where /dev/hda8