similar to: for loop question

Please pardon a novice use question. Is there any way under the Win32 version of R (1.3.0) to change the working directory from the GUI command line? I see the "Change dir" entry under the File menu, but haven't found a corresponding command. Thanks in advance, -jh- ========================================= John M. Heumann, Agilent Technologies 815 14th St. S.W., Loveland, CO

"An Introduction to R" says that arithmetic operators coerce logical vectors to numeric vectors. This doesn't seem to be true for unary "-" however: > x <- 1:10 > p1 <- (x > 5) > p2 <- (-p1) > is.logical(p2) [1] TRUE > is.numeric(p2) [1] FALSE Since "==" always does binary comparison, this can lead to some bizarre behavior: > p1

The documentation for sample() describes the optional "prob" argument as "A vector of probabilities of obtaining the elements of the vector being sampled". Both run time behavior and source code (routine FixupProb) suggest that "prob" can be a vector of non-negative, relative weights (i.e. not necessarily normalized). Should the help be updated to reflect this?

Under NT with 1.3.1 if (x == 1) { cat("Saw x=1\n"); } else { cat("Saw x!=1\n"); } works as expected, but if (x == 1) { cat("Saw x=1\n"); } else { cat("Saw x!=1\n"); } is currently giving me a syntax error on the "else" line. Apparently the parser considers the if statement to have ended as soon as it sees first closing brace, unless

When I try to build/install the quadprog package under R1.50 and NT4 it seems to have trouble finding blas routines. I'm currently using the generic blas routines, rather than ATLAS or some other tuned implementation: > Rcmd INSTALL d:/temp/quadrprog ... gcc --shared -s -o quadprog.dll quadprog.def quadprog.a quadprog_res.o -Lc:/a pps/rw1050/src/gnuwin32 -lg2c -lR

RPART doesn't seem to handle the degenerate case when all training samples are drawn from a single class: > TrainType [1] 0 0 0 0 > TrainDat V1 V2 V3 V4 V5 1 0.6434392 0.5105860 0.3048803 0.3161728 0.5449632 2 0.1710005 0.5973921 0.1267061 0.6146834 0.7299928 3 0.6919125 0.8880789 0.9123243 0.9061885 0.9553663 4 0.3094843 0.6475508

Oops... just realized there were a couple mistakes in the question I posted regarding installation of quadprog: 1) The gcc command line is shown wrapped to the next line. Please ignore this. 2) In addition to adding a -Lc:/apps/rw1050/bin option to the command line, I also added -lRblas. Thanks, -jh- ================================= John Heumann, Agilent Technologies,

Hello, We have used rsync on a mirroring application successfully for just over a year. After our upgrade to 2.4.6, however, the process started failing about 50% of the time. The nature of our failure was that the rsync processes on the remote system would die with no error message, leaving the local system processes hung. I have netstat and trace output for available if needed, but I see

Dear R experts, Does RMySQL package handle Blob datatype in a MySQL database? Blob can represent an image, a sound or some other large and complex binary objects. In an article published by R-database special interest group, named "A common database interface (DBI)" (updated June 2003), it's mentioned in "open issues and limitations" that "We need to carefully plan

Please pardon an extremely naive question. I see related earlier posts, but no responses which answer my particular question. In general, I'm very confused about how to do variance decomposition with random and mixed effects. Pointers to good tutorials or texts would be greatly appreciated. To give a specific example, page 193 of V&R, 3d Edition, illustrates using raov assuming pure

Hi, I'm having trouble with glmmPQL. I'm fitting a 2 level random intercept model, with 90,000 cases and about 330 groups. I'm unable to get any results on the full data set. I can get it to work if I sample down to about 30,000 cases. But for models with N's much larger than that I get the following warning message:

Hi, We downloaded the latest rsync 2.5.6 source code and compiled it on HP-UX for both 10.20 and 11.x. Rsync runs fine if we run it from the command line on both platforms. But after we put rsync command into a HP Software Distributor package configure script (just a shell script with rsync command in it) and run swinstall, which will get installation bits including the configure script, put the

Hi there fellow R-users, Im seeing some strange behaviour when I multiply a vector by a matrix Here is my script: > tr 1 2 3 4 5 6 0.2217903 0.1560525 0.1487908 0.1671354 0.1590643 0.1471667 > > ex1 a b c d e f 1 0.2309579 -3.279045 -0.6694697 -1.1024404 0.2303928 -1.5527404 2

Hi. I am running SAMBA 2.0.7 on HP-UX 11.00 and HP-UX 10.20. I have tried adding the MultipleUsersOnConnection registry key onto my Microsoft Windows NT Server 4 Terminal Server Edition servers, running with Service Pack 6. After I make this change in the registry and reboot my WTS servers all my samba connections from the servers are still being made with one process instead of being split

Hi all, I have a data management question. I am using an panel dataset read into R as a dataframe, call it "ex". The variables in "ex" are: id year x id: a character string which identifies the unit year: identifies the time period x: the variable of interest (which might contain NAs). Here is an example: > id <- rep(c("A","B","C"),2)

Hi! I am using R version 2.7.0 and am working on a panel dataset read into R as a dataframe; I call it "ex". The variables in "ex" are: id year x id: a character string which identifies the unit year: identifies the time period x: the variable of interest (which might contain NAs). Here is an example: > id <- rep(c("A","B","C"),2) >

Hi All, Well, i've managed to enable some debugging in syslog, I had to put in /etc/syslog.conf ;*.debug on the syslog line. So at least I have an error which is being returned into syslog from winbind. This is what I get from winbind Feb 4 21:13:17 coastdr pam_winbind[20753]: Verify user `lonnie' Feb 4 21:13:18 coastdr pam_winbind[20753]: user 'lonnie' granted acces Feb 4

Well, I managed to get Samba 2.2.3 up and running on our Solaris 8 machine. I installed with the winbind option and everything went though just find. I was able to join the NT domain and now I can do a wbinfo -u "and get a domain user list as well as a "wbinfo -g and get a group list. For some reason though, the authentication isn't working. I tried to "wbinfo -a" and

I've got two tables.... first one(table1): ID chrom start end Ex1 2 152 180 Ex2 10 2000 2220 Ex3 15 3000 4000 second one ( table2): chrom location name 2 160 Alv 2 190 GNN 2 100

Hi, I am trying to reconcile anova table in R (summary(lm)) with individual t.test. datafilename="http://personality-project.org/R/datasets/R.appendix1.data" data.ex1=read.table(datafilename,header=T) #read the data into a table summary(lm(Alertness~Dosage,data=data.ex1)) gives: Call: lm(formula = Alertness ~ Dosage, data = data.ex1) Residuals:    Min     1Q Median     3Q    Max