similar to: How to assign text string as object?

Hi, I am also a quite new user of R and would like to ask you for help: I have a data frame where all columns are numeric variables. My aim is to convert one columnt in factors. Example: MD 0.2 0.1 0.8 0.3 0.7 0.6 0.01 0.2 0.5 1 1 I want to make classes: 0-0.2 A 0.21-0.4 B 0.41-0.6 C ..... and so on So after classification I wil get: MD A A D B . . . and so on Please could you give an advice

Hello, I wanted to create a histogram, but somehow I got stuck... The interval limits are: x = 1, 2, 3, 3.5, 4.5, 5, 5.5 The interval widths are therefore: 1, 1, 0.5, 1, 0.5, 0.5 Nothing I tried worked... Can anyone help me please? Thanks Tobias -- View this message in context: http://www.nabble.com/Histogram-tf4315900.html#a12288850 Sent from the R help mailing list archive at Nabble.com.

I want to use R to run a reaction-time experiment: Something appears on the screen, I respond by typing something (one keystroke), the system measures the speed of my response. R would be great for this if only I didn't have to hit Enter to enter that keystroke. I am doing such experiments now but they require two actions per trial: hit keystroke, hit Enter. Is there some way that R can be

Hi Mark, I don't know wether you recived a sufficient reply or not, so here are my comments to your problem. Supressing the constant term in a regression model will probably lead to a violation of the classical assumptions for this model. From the OLS normal equations (in matrix notation) (1) (X'X)b=X'y and the definition of the OLS residuals (2) e = y-Xb you get - by

We are in need of some very basic software that will give us the ability to swing an ip address from one host to another during controlled maintenance or host failure. For now the IP address will be the only resource that is shared and there will never be a need for shared storage. Eventually we may want to monitor processes for health (probably just read in pid file) and it would be great if

Hi all, i've problem with mounting logical volumes over NFS. On NFS server, i have following logical volume [root at nfs_server ~]# lvdisplay --- Logical volume --- LV Name /dev/escience/vv_25 VGnfs_servernfs_servernfs_servernfs_servernfs_server escience LV UUID iMhNq7-iC7L-VTDO-Xcwv-a6yv-sEAD-EZWASV LV Write Access read/write LV Status

Greetings, i had a following problem, which on one side i have already solved, but on other side i don't thing it should behave this way and wish somebody to tell if it is feature or bug ;-) [root at machine home]# chown user user/ [root at machine home]# ls -ld /home/user drwxr-xr-x 66 user staff 4096 /home/user [root at machine home]# chgrp -R staff user/ [root at machine home]# ls -ld

Hi, does Centos-5 support the GFS filesystem and the RedHat cluster suite? I did not find anything in the FAQs. Regards Joachim Backes <joachim.backes at rhrk.uni-kl.de> University of Kaiserslautern,Computer Center [RHRK], Systems and Operations, High Performance Computing, D-67653 Kaiserslautern, PO Box 3049, Germany -------------------------------------------------- Phone:

I use R Version 0.60 Alpha (September 18, 1997) on a Linux Pentium (Debian 1.3) and on a Sparc-Sun-Solaris 2.5.=20 R> svd(matrix(1:16,4,4)) =09yields on both machines Error: error 4 in dsvdc R> svd(matrix(1:20,4,5)) =09gives a result on the Linux computer $d [1] 0 0 0 NA $u [,1] [,2] [,3] [,4] [1,] 1 0 0 0 [2,] 0 1 0 0 [3,] 0 0 1 0 [4,] 0

I'm looking to troubleshoot this error when I run "tail /etc/httpd/logs/error_log" [Tue Oct 09 07:22:59 2007] [error] [client 127.0.0.1] Directory index forbidden by rule: /var/www/html/ (I get this when I run Nagios' "./check_http -H 127.0.0.1".) All I did was install CentOS and then modify httpd.conf to include "ServerName 192.168.1.10:80" and also

Hi All, How do I can delete from a matrix (or array) only those columns which have all their values set to NA? Cheers Antonio Rodriguez ---

Hola! I am working on a problem where data points are (square) matrices. Is there a way to make a "vector" of matrices, such that it can be stored in a data.frame? Can that be done with S3? or do I have to learn S4 objects & methods? Kjetil

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Buenas a todos, relato directamente mi problema. Estoy preparando unos datos para ingresarlos en otro programa que requiere una columna de ID y el resto de la información toda seguida sin espacios. El echo es que yo tengo la información separada en columnas, por ejemplo: ID col2 col3 col4 col5 etc. y precisaría dejarla de la siguiente forma: ID col2col3col4col5 etc. Para luego escribir a