search for: dray

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2005 Jan 12
0
Shares disconnect on XP when Offline Files enabled after migration from v2.x to v3.0.7
...ted, 9 work flawlessly but 3 will disconnect all shares from F2. A user log file snippet and the contents of my smb.conf file follow. The following log snippet (log level = 2) shows an Excel file being opened and closed several times in very rapid succession then his home share (service: dray) being authenticated and closed a few times, then all shares. New PIDs were even generated. I found the following entry interesting: [2005/01/10 17:31:21, 2] smbd/service.c:make_connection(752) [homes] share not available for this user because it was not found or created at session setup...
2004 Mar 24
7
binding vectors or matrix using their names
...ring with comma ncomma=paste(my.names,collapse=",") and now, I just need a function to transform this string into a adequate argument for cbind: cbind(afunction(ncomma)) Is there in R a function that can do the job ? If not, how can I do it ?? Thanks in advance, Sincerely. St?phane DRAY -------------------------------------------------------------------------------------------------- D?partement des Sciences Biologiques Universit? de Montr?al, C.P. 6128, succursale centre-ville Montr?al, Qu?bec H3C 3J7, Canada Tel : 514 343 6111 poste 1233 E-mail : stephane.dray at umontreal.ca...
2004 Sep 20
4
Multiple operations on list
.../ trace(x1%*%t(x1))*trace(x2%*%t(x2)) I know that product matrices t(xi)%*%xi can be obtained by: aa=lapply(a,crossprod) but I do not know how to "mix" the values in aa to obtain the desired values. Is there a way to do it without for loop ? Thanks in advances, sincerely St??phane DRAY -------------------------------------------------------------------------------------------------- D??partement des Sciences Biologiques Universit?? de Montr??al, C.P. 6128, succursale centre-ville Montr??al, Qu??bec H3C 3J7, Canada Tel : (514) 343-6111 poste 1233 Fax : (514) 343-2293 E-...
2004 Feb 23
2
orthonormalization with weights
...Z=XA with t(Z)%*%D%*%Z=diag(1) I can do the Gram-Schmidt orthogonalization with subsequent weighted regressions. I know that in the case of uniform weights, qr can do the trick. I wonder if there is a way to do it in the case of non uniform weights by qr or svd ? Thanks in advances. St?phane DRAY -------------------------------------------------------------------------------------------------- D?partement des Sciences Biologiques Universit? de Montr?al, C.P. 6128, succursale centre-ville Montr?al, Qu?bec H3C 3J7, Canada Tel : 514 343 6111 poste 1233 E-mail : stephane.dray at umontreal.ca...
2003 Nov 04
2
real eigenvectors
...onsider an indefinte real matrix, I would like to know if the symmetry of the matrix is sufficient to say that their eigenvectors are real ? And what is the conditions to ensure that eigenvectors are real in the case of an asymmetric matrix (if some conditions exist)? Thanks in Advance, St?phane DRAY -------------------------------------------------------------------------------------------------- D?partement des Sciences Biologiques Universit? de Montr?al, C.P. 6128, succursale centre-ville Montr?al, Qu?bec H3C 3J7, Canada Tel : 514 343 6111 poste 1233 E-mail : stephane.dray at umontreal.ca...
2004 Oct 22
4
Evaluate a function for various value of parameters
...ct arguments of the function as character, then parse and pass it to f but parse doesn't work: > parse(text=paste(paste(names(myg),myg[i,],sep="="),collapse=",")) Error in parse(file, n, text, prompt) : parse error Any ideas ?? Thanks in advance, sincerely St??phane DRAY -------------------------------------------------------------------------------------------------- D??partement des Sciences Biologiques Universit?? de Montr??al, C.P. 6128, succursale centre-ville Montr??al, Qu??bec H3C 3J7, Canada Tel : (514) 343-6111 poste 1233 Fax : (514) 343-2293 E-...
2008 Apr 01
1
superimpose histogram on biplot
Hi all, I've been trying to figure out how to superimpose a histogram on a biplot that shows the relative contribution of each axis. I have been using the NIPALS function (http://biomserv.univ-lyon1.fr/~dray/ files/softwares/nipals.R) to run principal component analyses. Here is a toy example. source("http://biomserv.univ-lyon1.fr/~dray/files/softwares/nipals.R") mat=matrix(runif(100,0,1), ncol=10, nrow=10) nipmat=nipals(mat, nf=9) scatter(nipmat) In the plot generated by the above &quo...
2004 Mar 31
3
scan seems to modify the data
...-0.48099999999999998 0.26600000000000001 Is it normal ? Is it a bug ? thanks in advance, Sincerely. > version _ platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 1 minor 8.1 year 2003 month 11 day 21 language R St?phane DRAY -------------------------------------------------------------------------------------------------- D?partement des Sciences Biologiques Universit? de Montr?al, C.P. 6128, succursale centre-ville Montr?al, Qu?bec H3C 3J7, Canada Tel : 514 343 6111 poste 1233 E-mail : stephane.dray at umontreal.ca...
2004 Jul 06
2
Generate a matrix Q satisfying t(Q)%*%Q=Z and XQ=W
...Q2=Q1%*%ginv(X%*%Q1)%*%W eps=sum(abs(Q1-Q2)) cat(i,":",eps,"\n") i=i+1 } Perhaps someone could have any idea to solve the problem, or a reference on this kind of question or the email of another list where I should ask this question. Thanks in advance, Sincerely. St??phane DRAY -------------------------------------------------------------------------------------------------- D??partement des Sciences Biologiques Universit?? de Montr??al, C.P. 6128, succursale centre-ville Montr??al, Qu??bec H3C 3J7, Canada Tel : 514 343 6111 poste 1233 E-mail : stephane.dray at umontre...
2007 Nov 16
1
Efficient way to compute power of a sparse matrix
...t be used to improve the script. I wonder if someone could help me to obtain an efficient (i.e. fastest) procedure to compute the power of a matrix. Please note that in this example, M^n could be a matrix of 0, but it is not the case with my real data. Thanks in advances, Cheers. -- St?phane DRAY (dray at biomserv.univ-lyon1.fr ) Laboratoire BBE-CNRS-UMR-5558, Univ. C. Bernard - Lyon I 43, Bd du 11 Novembre 1918, 69622 Villeurbanne Cedex, France Tel: 33 4 72 43 27 57 Fax: 33 4 72 43 13 88 http://biomserv.univ-lyon1.fr/~dray/
2004 Jul 09
3
analytic solution for equation
...esults of equation. or more generally if it contains some functions to simplify equation. For example: I would like to obtain x1 from: x1+x2=8 (x1=8-x2) x1^2+x2=8 (x1=sqrt(8-x2)) Is is possible in R ? if not, do you know a (free) software that could do the job ? Thanks in advance ! Stephane DRAY
2004 Jun 29
2
binding rows from different matrices
...quot; "X" [13,] "5" "10" "15" "20" "25" [14,] "e" "j" "o" "t" "y" [15,] "E" "J" "O" "T" "Y" > Thanks in advance ! St??phane DRAY -------------------------------------------------------------------------------------------------- D??partement des Sciences Biologiques Universit?? de Montr??al, C.P. 6128, succursale centre-ville Montr??al, Qu??bec H3C 3J7, Canada Tel : 514 343 6111 poste 1233 E-mail : stephane.dray at umontre...
2001 May 29
3
geary statistics
Hello, i' m looking for a function to compute geary statistic for spatial correlation. Thanks. -- St?phane DRAY --------------------------------------------------------------- Biom?trie et Biologie ?volutive - Equipe "?cologie Statistique" Universite Lyon 1 - Bat 711 - 69622 Villeurbanne CEDEX - France Tel : 04 72 43 27 56 Fax : 04 78 89 27 19 04 72 43 27 57 E-mail : dray at biomse...
2002 Jul 18
2
RODBC and Excel Files
...ar(255) ,t varchar(255) ,u varchar(255) ,v varchar(255) ,w varchar(255) ,x varchar(255) ,y varchar(255) ,z varchar(255) , varchar(255) )" Error in sqlColumns(channel, tablename) : fau01 :table not found on channel 0 How can i save my dataframe ??? Thanks in advance. -- St?phane DRAY --------------------------------------------------------------- Biom?trie et Biologie ?volutive - Equipe "?cologie Statistique" Universite Lyon 1 - Bat 711 - 69622 Villeurbanne CEDEX - France Tel : 04 72 43 27 56 Fax : 04 78 89 27 19 04 72 43 27 57 E-mail : dray at biomse...
2003 Jun 26
0
Votre courrier est rejeté
A L E R T E V I R U S Notre antivirus a d?tect? le VIRUS "W32/Sobig.e at MM" dans votre courrier destin? ? : -> dray at biomserv.univ-lyon1.fr Nous refusons de le transmettre. Nous vous conseillons de d?contaminer votre poste de travail. Pour votre information, vous trouverez ci-dessous les entetes de votre message Pour des informations sur ce virus et comment l'?lim...
1999 Sep 20
0
My question on creating binaries
...What I did not know then was that the semaphores were not cleared when samba 1.9.18p1 was stopped so I got a shared memory and semaphores error. Cleared it by rebooting after installing the new bins. Thanks to everyone Regards simon ############################################ # Simon Dray. # # BBSRC BITS # # Technical support specialist (UNIX) # # (01582)714900 X325 # # # ############################################ -----Original Message----- From: john...
2007 Sep 14
3
problems for ./configure on Ralpha: gcc related
Dear all, I am trying to compile Ralpha on my computer (OS = Debian). SVN Revision is: Revision: 42843 Last Changed Date: 2007-09-14 ./configure returns : ---------------------------------------------------- stephane at pcdray:~/Rdev/R-alpha$ ./configure checking build system type... i686-pc-linux-gnulibc1 checking host system type... i686-pc-linux-gnulibc1 loading site script './config.site' loading build specific script './config.site' checking for pwd... /bin/pwd checking whether builddir is srcdir......
2005 Oct 11
2
Sweave and Rnews
...n schunk. I did not find any way to cut them in the Rnw file and they appear out of the column in the dvi file. The only solution I found is to cut these lines in the tex file generated by Sweave. Is there a more elegant and automatic solution to this problem? Thanks in advance. -- St??phane DRAY (dray at biomserv.univ-lyon1.fr ) Laboratoire BBE-CNRS-UMR-5558, Univ. C. Bernard - Lyon I 43, Bd du 11 Novembre 1918, 69622 Villeurbanne Cedex, France Tel: 33 4 72 43 27 57 Fax: 33 4 72 43 13 88 http://www.steph280.freesurf.fr/
2004 Oct 01
1
cumsum over a list or an array
...ith apply without succes: y=apply(xarray,c(1,2),cumsum) The results are good but not in the format that I want. I could modify the results to modify the format but I am sure that it exists another faster way. Is it possible to do the same on the list ? Thanks in advance Sincerely St??phane DRAY -------------------------------------------------------------------------------------------------- D??partement des Sciences Biologiques Universit?? de Montr??al, C.P. 6128, succursale centre-ville Montr??al, Qu??bec H3C 3J7, Canada Tel : (514) 343-6111 poste 1233 Fax : (514) 343-2293 E-...
2005 Nov 11
1
A 'sweave' strange problem !!!
...f 'a' has change between the two Schunks. It seems that the problem only appear when there are plot (fig=T) in the first one. Without plot, there are no problems: a remains unchanged. Is it a bug or have I misundertsood something ? Thanks a lot ! R version 2.1.0 (Debian). -- St??phane DRAY (dray at biomserv.univ-lyon1.fr ) Laboratoire BBE-CNRS-UMR-5558, Univ. C. Bernard - Lyon I 43, Bd du 11 Novembre 1918, 69622 Villeurbanne Cedex, France Tel: 33 4 72 43 27 57 Fax: 33 4 72 43 13 88 http://www.steph280.freesurf.fr/