similar to: aggregate data.frame using column-specific functions

Dear Colleagues: I have 3 numeric variables (say x, y, z) in a data.frame and want to draw a 2D-scatterplot with the 3rd dimension as color, if possible without having to convert the whole thing to an appropiate matrix for image() manually. Can e.g. scatterplot3d do something like this? There's a function xyz.convert, but I couldn't find the way to use it properly. Sincerly,

Dear Colleagues, I've been looking for a function that can perform a tree analysis, similar to CHAID or QUEST. The key point is that in this case the variables are not binary but nominal (10 different values), so "tree" (from the tree package) won't work. Does anybody know help? Sincerely, ___________________ Markus Preisetanz Consultant Client Vela GmbH

Dear Colleagues, does anybody know how to add dimnames to an image. Right now I'm using image(as.matrix(df3), col=brewer.pal(9,"Blues")) where df3 is a data.frame. dimnames(as.matrix(df3)) delivers [[1]] [1] "RFM_A1" "RFM_A2" "RFM_A4" "RFM_A5" "RFM_A7" "RFM_B3" "RFM_B6" "RFM_B7"

Dear R Specialists, when trying to cluster a data.frame with about 80.000 rows and 25 columns I get the above error message. I tried hclust (using dist), agnes (entering the data.frame directly) and pam (entering the data.frame directly). What I actually do not want to do is generate a random sample from the data. The machine I run R on is a Windows 2000 Server (Pentium 4) with 2 GB of

Dear Colleagues, I would like to only inspect rules that contain a certain label substring on the rhs. In this special case the item labels are built like this: <itemtype>_<itemvalue> e.g. "Artikelgruppe_E0815" what I want to do is only show rules where "Artikelgruppe" is contained in the rhs - has anybody an idea how this could work? Sincerely

Dear Collegues, when using sqlQuery from the package RODBC I always get a data frame with automatically generated rownames, even if: * the first column of the query is called rownames using "Select ... AS rownames, ... From ..." * and: the values from this column are unique * and: the values are inevitably forced to character data with e.g. " 'rn_' + CAST(xy AS

Dear Collegues, does anybody know how I can place a legend at a sensible position in a star diagram automatically? The legend should tell the name of the variable (from colnames) for every color used. Sincerely, Markus ___________________ Markus Preisetanz Consultant Client Vela GmbH Albert-Roßhaupter-Str. 32 81369 München fon: +49 (0) 89 742 17-113 fax:

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Hi group, My case has N physicians with each seeing M patients. One physician could have seen a group of patients, or, a patient could have been seen by multiple number of physicians. In order words, there are overlaps. Now, I have the following NxM matrix Patient#1 Patient#2 Patient#3 ....... Patient#m Physician#1 1 0 1 ....... 0 Physician#2

Dear Collegues, it seems like there is a problem with the image()-method in the package arules. Using an ordninary matrix works fine: image(matrix(rnorm(200), 10, 20), axes = FALSE, col=brewer.pal(9, "Blues") ) delivers an image with blue colors and no axes. Using an object of the class "associations" (arules package) does not work: image(items(ta.eclat), axes = FALSE,

Dear R-users, I have some problems with the geweke.diag-Function of the coda-package. I try to obtain the Geweke-diagnostic by using the following, simple code: library(coda) input.geweke = as.mcmc(input.matrix) #input.matrix is a 25.000 x 35 matrix with the 25.000 saved draws of the 35 parameters of interest output = geweke.diag(input.geweke) However, I get the following

Dear Sirs, I try to setup a quite complex routing scenario with iproute2, shorewall, bonding and hundrets of vlans as well as a lot of different virtual routing tables. In the past it was often possible to get great support directly by shorewall list but since the routing becomes more complex I do see a need to have a brief consulting by an experienced engineer. Shorewall list recommended me

Sehr geehrte Damen und Herren, Ab dem 23.12.2016 bis einschließlich 06.01.2017 sind wir im Weihnachtsurlaub. Ab dem 09.01.2017 stehen wir Ihnen wieder wie gewohnt zur Verfügung. Wir wünschen Ihnen und Ihrer Familie ein frohes und gesegnetes Weihnachtsfest und einen Guten Rutsch ins neue Jahr. Mit freundlichen Grüßen Ihr Hardy Barth - Team EDV- u. Elektrotechnik Hardy Barth GmbH

Dear Nut-Devs, I have general question to the contribution and the handling of new code in the NUT-Project. We would like to implement our USV-Solution as a driver to NUT, but we are having the problem, that we need a powerful “C”-based gpio library for it. We discussed this topic internally, and we are having the opinion, that it does make sense, to write this library separate from a

Hi everybody, i hope that i'm on the right mailing list. I'm having some trouble with xfs and xen. We are running the newest xenserver version with ha on dell servers and a dell equalogic. I set up a fileserver (debian lenny 2.6.29-xs5.5.0.17) with one ext3 partiton for the os and one xfs partition for the data. Two webserver are using this fileserver with nfs. Now i run the second

Hai, I have AllowGroups sshlinux, sshwindows Add at least 1 user in the linux group and at least 1 in the sshwindows group. Make sure the sshwindows group have a GID. And make sure the windows user loggin in in ssh als have a UID. AND for both, UID 1000+ ( which is in debian the default PAM setting ) . This is base on a "MEMBER" server. If you do : getent windowsuser You

Hi, How can I integrate Asterisk to Nuance TTS engine instead of Cepstral? Has anybody done this? How is the architecture and can Java AGI be used to communicate between them? regards, Vela Sivasankaran -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20091021/56254a0e/attachment.htm

I am having two issues with a transfer I perform every weekend. The first is I am trying to exclude a directory with the following command: /usr/bin/rsync --rsync-path=/usr/bin/rsync --rsh=/usr/bin/rsh --log-file=/tmp/rsync.out --exclude /gcse1/infor/ --delete-before -rptS usaix:/gcse1/ /gcse1 I am attempting to pull and synchronize the directory /gcse1 with my local server directory

Dear all, This is my first post to this group so excuse me if this topic has been solved previously. If I want to shutdown a remote database, I could send a "systemctl stop mariadb" command using ssh. But I wonder if it is possible to update the openssh server to implement a specific handler/callback that catch this message and then call a C/C++ code. In short, is there any interface

Dear All, I am running a simulation to obtain coverage probability of Wald type confidence intervals for my parameter d in a function of two parameters (mu,d). I am optimizing it using "optim" method "L-BFGS-B" to obtain MLE. As, I want to invert the Hessian matrix to get Standard errors of the two parameter estimates. However, my Hessian matrix at times becomes