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Hi, I have written an R translation of C.T. Kelley's Matlab version of the Nelder-Mead algorithm. This algorithm is discussed in detail in his book "Iterative methods for optimization" (SIAM 1999, Chapter 8). I have tested this relatively extensively on a number of smooth and non-smooth problems. It performs well, in general, and it almost always outperforms optim's

Hello all, Quick question. Our network has NO connection to the internet (the way we want it) but we are using 66.2.x.x as our IP addresses. However, I am now reading that 192.168.x.x is the preferred naming convention. If I leave as 66.2.x.x will I have problems with Samba? Because I dont connect to the Internet do I need to change? Thanks in advance and hope Mr. Gerard O'Reilly Intranet

Hello, I am using Samba shares as a way for my users to publish files from their Windows XP PC's to my Apache Web Server on Red Hat Linux. The username I use for Apache is apache and it has full read,write and execute access on all the files within my webserver root directory. In the Samba Shares I use force user = apache so this means that any files created using the share actually get

Hi, Im looking for help and advice. I am using Linux Red Hat 6.2 as my Server and I am running Apache 1.3.12 and Samba 2.0.6. I have an Intranet set up which my users access through IE 5.5 on their Windows 95 clients (at the moment!). However, I am looking for advice on the best way to share files via the Intranet to my Windows Users. If i upgrade the clients to Windows XP or 2000 will my Samba

A Likert scale may have produced counts of answers per category. According to theory I may expect equality over the categories. A statistical test shall reveal the actual equality in my sample. When applying a chi square test with increasing number of repetitions (simulate.p.value) over a fixed sample, the p-value decreases dramatically (looks as if converge to zero). (1) Why? (2) (If

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hello all sorry for the following "none" R related question. does anyone know of a reference to calculate the following identity: |I + ABC| where I is an identity matrix and A, B,C may not have to be square matrices? you help will be greatly appreciated. H. V. Henderson; S. R. Searle SIAM Review, Vol. 23, No. 1. (Jan., 1981), pp. 53-60. provides a result to

A dataframe holds 3 vars, each checked true or false (1, 0). Another var holds the grouping, r and s: ### start:example set.seed(20) d <- data.frame(sample(c(0, 1), 20, replace=T), sample(c(0, 1), 20, replace=T), sample(c(0, 1), 20, replace=T)) names(d) <- c("A", "B", "C") e <- rep(c("r", "s"), 10) ### end:example How do I get the

Please, please help me. I am running RH6.2, Samba 2.2.4 and Windows XP (with sign seal patch). Samba is my PDC. I want to use roaming profiles and it nearly works except for something really strange. When I logon to the Domain as a user and make changes to files etc and then log out it updates my roaming profile perfectly on the server. As the same user if I logon to another machine it also

Good afternoon, Today I was working on a practice problem. It was simple, and perhaps even realistic. It looked like this: ? Get a list of all the data files in a directory ? Load each file into a dataframe ? Merge them into a single data frame Because all of the columns were the same, the simplest solution in my mind was to `Reduce' the vector of dataframes with a call to `merge'. That

I have created a function to do something: i <- factor(sample(c("A", "B", "C", NA), 793, rep=T, prob=c(8, 7, 5, 1))) k <- factor(sample(c("X", "Y", "Z", NA), 793, rep=T, prob=c(12, 7, 9, 1))) mytable <- function(x){ xtb <- x btx <- x # do more with x, not relevant here cat("The table has been created,

Dear All Where can I lookup good methods to compute p from q=bin(m,n)p^n*(1-p)^(m-n) such that q<=alfa, alfa small. Are there such libs, code and source in R? Best Regards -- Jan Burse SIAM, EAWAG Scheuchzerstr. 67 ?berlandstr. 133 8006 Z?rich 8600 D?bendorf tel: +41-1-364 17 66 tel: +41-1-823 55 34

Hi, Today I got curious about whether or not I /could/ remove `attach' from my system so: - Backed it up - Implemented a new one - Like this ,---- | attach.old <<- attach | attach <<- function(...) {stop("NEVER USE ATTACH")} `---- I got the error: ,---- | Error: cannot change value of locked binding for 'attach' `---- If I unlock `attach' I assume that I

Dear R people, I need to do some work with clustering, but know next to nothing about it at present. R has (at least) three clustering packages, cluster, mclust, cclust. I was wondering if someone can direct me to some good books where I could find documentation and background on the functions in these packages. The html help in these packages lists the following as references. Can people

Dear all, I have a population with three age-classes, at time t=0 the population is: n.zero <- c(1,0,0) I have a transition matrix A which denotes "fertility" and "survival": A <- matrix(c(0,1,5, 0.3,0,0, 0,0.5,0), ncol=3, byrow=TRUE) To obtain the population at t=1, I calculate: A %*% n.zero To obtain the population t=2, I calculate: A %*% (A %*% n.zero) ... and so

Hehe, yeah, and the pr0n wasn't even that good :) I'm on one mailing list that has died and has no traffic except spam. Problem is it's not majordomo and I can'r get a response from anyone human to unsubscribe me :( Jase >>> scott@john.ikansas.com 05/29/01 21:10 PM >>> Nice, Statistics show that 3 out of the 4 lists I am subscribed to, 50% of them suffer

How to I "recode" a factor into a binary data frame according to the factor levels: ### example:start set.seed(20) l <- sample(rep.int(c("locA", "locB", "locC", "locD"), 100), 10, replace=T) # [1] "locD" "locD" "locD" "locD" "locB" "locA" "locA" "locA"

Here is what I am trying to accomplish: I want to create a share that will force users to a ID and group, allow certain users write privileges to certain directories only and others read only. I have set this up and every time I create a file the owner is set to root and the group is correct. Any help would be great, the following is what I have in the smb.conf file: [migrate] path =

I am still testing Asterisk, but I am running in to a lot of problems. I set up numerous extensions, but Asterisk is not performing to tasks correctly. Here is an example. exten => 231,1,Dial(Zap/g1/231|3) exten => 231,2,Voicemail(u231) exten => 231,3,Hangup When I call in and enter extension 231, my call is routed to the correct extension, but it just keeps ringing. If I change the

A new package 'nnls' is now available on CRAN. The package provides an R interface to the Lawson-Hanson NNLS algorithm for non-negative least squares that solves the least squares problem A x = b with the constraint x >= 0. The Lawson-Hanson NNLS algorithm was published in Lawson CL, Hanson RJ (1974). Solving Least Squares Problems. Prentice Hall, Englewood Cliffs, NJ. Lawson CL,