similar to: [R/S] strange solution

Hi, Erin: A cleaner way is to pass "n2" to "outer" as a "..." argument, as in the following modification of your code: boot1 <- function(y,method="f",p=1) { n1 <- length(y) n2 <- n1*p n3 <- n2 - 1 a <- 0.5*(outer(1:n3,1:n3,function(x,y, n2.){n2. - pmax(x,y)}, n2.=n2)) return(a) } y1 <- c( 9, 8, 7, 3, 6) boot1(y=y1,p=4)

Dear R and S People: I have run across something very strange. Here is a function that I wrote for R: boot1 <- function(y,method="f",p=1) { n1 <- length(y) n2 <- n1*p n3 <- n2 - 1 a <- 0.5*(outer(1:n3,1:n3,function(x,y){n2 - pmax(x,y)})) return(a) } and here is the R output: > y1 [1] 9 8 7 3 6 > source("boot1.R") > boot1(y=y1,p=4) [,1] [,2]

> Someone else mentioned Venables and Ripley (2000) S > Programming (Springer). Please see this or some other discussion of the > "..." argument. The "Introduction to R" (from Cran website) also talks about it. See pg 49 - section 10.4 (was just reading this the other day). Cheers Manoj -----Original Message----- From: r-help-bounces at stat.math.ethz.ch

Dear R and S People: First, thank you to so many people for your help to my problem. Here is the solution: a <- 0.5*(outer(1:n3,1:n3,function(x,y,n2.){n2. - pmax(x,y)},n2.=n2)) I have one final pesky question, please: During my experiments, I tried the following: a <- 0.5*(outer(1:n3,1:n3,function(x,y,n2.=n2){n2. - pmax(x,y)})) Why doesn't this work please? thank you! Sincerely,

Dear R people: I have a vector which runs from -1 to 1, by .1, inclusively. Easy to set up. x <- seq(-1,1,.1) I then sample 3 numbers from x. y <- sample(x, 3) Suppose one of my values is -0.7. I want to set up an interval around that y1 <- pmax(y-0.1,-1) y2 <- pmin(y+0.1,1) For the value -.7, the interval will run from -.8 to -.6. There will be several intervals. Again, nothing

Dear R People: Here are my latest attempts for Rmpi: This is the list of locations for mpi.h: /home/faculty/hodgess/mpich2-1.0.5p4/src/include/mpi.h /home/faculty/hodgess/include/mpi.h /home/faculty/hodgess/lam-7.1.4/romio/adio/sgi/mpi3.1/mpi.h /home/faculty/hodgess/lam-7.1.4/share/include/mpi.h /usr/src/linux-2.4.21-20.EL/drivers/addon/fusion_20505/lsi/mpi.h

Hi R People: If you have a linear programming problem in which some of the constraints have the "<=", some have ">=" and some have "=", all in the same problem, should the solver work? I'm having trouble with that. Any help much appreciated! Sincerely, Erin Hodgess mailto: hodgess at gator.uhd.eud whoops! mailto: hodgess at gator.uhd.edu

Folks, I asked a question on this mailing list about the subset support of lm(). In a flash, I got three helpful responses from Rajarshi Guha <rxg218 at psu.edu> <http://jijo.cjb.net> Erin Hodgess <hodgess at gator.uhd.edu> and Peter Dalgaard <p.dalgaard at biostat.ku.dk> :-) and it was just great. The mistake I was making was in not understanding the notion of a

Dear R People: When the D function is used for a symbolic derivative, an expression is returned, which is fine. How do you change that expression to a function, please? I've been experimenting with substitute and deparse, but no success yet. This is R 1.8.0 for Windows. thanks in advance for the help! Sincerely, Erin Hodgess mailto: hodgess at gator.uhd.edu

Hi Ryszard! There is a dist function in R. It's in the mva package. You can set the kind of distance that you want. Thanks, Erin mailto:hodgess at gator.uhd.edu

Dear R People: Yet again, I am attempting to install R on RedHat Linux. Here is my sorry attempt to date: [hodgess at gator hodgess]$ rpm -vi R.rpm warning: R.rpm: V3 DSA signature: NOKEY, key ID 97d3544e error: cannot write to %sourcedir /usr/src/redhat/SOURCES I only want to write it to my own userid, since I am the only one who uses it. Any suggestions would be much appreciated. Thanks,

Dear R yet again! I finally got the Rmpi package to install! Yay!. However, when I go into R to use it, there is an error with the dyn.load file. This should be simple (allegedly). Please help. Thanks, Sincerely, Erin mailto: hodgess at gator.uhd.edu /home/faculty/hodgess/R-2.6.0/bin [hodgess at gator bin]$ ./R CMD INSTALL Rmpi_0.5-4.tar.gz

Dear R People: Suppose I have the following; xa <- c("There are 5 dogs") I would like to have a new character vector such that xb[1] is There xb[2] is are xb[3] is 5 xb[4] is dogs Since the original vector has length 1, substring will not work. Any suggestions would be MOST welcome! thanks Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences

Dear R Users: Was there an answer to the question about using dev.print and win.print to print as horizontal = FALSE, please? I was working on it and I didn't find the solution. R 1.9.1 Windows Thanks, Erin Hodgess mailto: hodgess at gator.uhd.edu

Dear R People: I downloaded the RPM for Red Hat Linux. How do I install this, please? When I looked at the R Intallation manual, it seemed to be referring to installing from source. Thanks in advance! Sincerely, Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodgess at gator.uhd.edu

Dear R People: Suppose I have the 4 numbers: 1,2,3,4. I would like to create a listing of the permutations of 4 items taken 4 at a time. Is there a built in function for that, please? Thanks in advance! R 2-3-1 for Windows or Linux Sincerely, Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodgess at gator.uhd.edu

Dear R People: I am trying to split a character vector into a set of individual letters: Ideal: x3 <- c("dog") "d" "o" "g" I tried the following: > strsplit(x3) Error in strsplit(x3) : argument "split" is missing, with no default > strsplit(x3,1) [[1]] [1] "dog" I know that this is incredibly simple, but what am I doing

Hi again! Please try something like this: > zone1.df zone sex len 1 1 male 15 2 1 fema 20 3 1 fema 17 4 2 fema 19 5 2 male 18 > str(zone1.df) 'data.frame': 5 obs. of 3 variables: $ zone: Factor w/ 2 levels "1","2": 1 1 1 2 2 $ sex : Factor w/ 2 levels "fema","male": 2 1 1 1 2 $ len : int 15 20 17 19 18 >

Dear R People: When will version 1.9 (for Windows) be ready, please? My reason for asking: there is an interesting library from Bioconductor called tkWidgets. However, it will only work with version 1.9.0 or higher. Are there ways around this, or should I just be patient? Thanks so much in advance! Sincerely, Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences

Dear R People: When creating a package, how do you include new methods and classes, please? I'm using the pacakge.skeleton command as a starting point. Thanks, Sincerely, Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hodgess at gator.uhd.edu