similar to: Goldbach partitions code

I need to create a function to find all the prime numbers in an array. Can anyone point me in the right direction? Thank you. AJ -- View this message in context: http://www.nabble.com/Function-to-find-prime-numbers-tp25868633p25868633.html Sent from the R help mailing list archive at Nabble.com.

Just out of curiosity, is there a plan to support Comet (name coined by the dojo guys) w/ prototype? Comet represents persisting an http connection for low latency data operations. It also represents a nice alternative to polling. Jim _______________________________________________ Rails-spinoffs mailing list Rails-spinoffs-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org

Folks, If I have a vector such as the following: x <- c(0, -1, -1, -1, 0, 0, 1, -1, 1, 0) and I want to replace the zeroes by the nearest non-zero number to the left, is there a more elegant way to do this than the following loop? y <- x for (i in 2 : length(x)) { if (y[i] == 0) { y[i] <- y[i - 1] } } > y [1] 0 -1 -1 -1 -1 -1 1 -1 1 1 You can see the

So someone finally named server-push through HTTP-keepalive "Comet" It''s also been implemented in a very nice Java/Javascript library called DWR. http://ajaxian.com/archives/dwr-20-reverse-ajax Has there been any discussion by "the core" about adding this to Rails 1.2? :) -- seth at subimage interactive http://www.subimage.com/sublog/ -------------- next part

Hey folks, I was playing around with adding Comet (a javascript technology used to receive events without AJAX polling) support to Mongrel. More info about Comet here: http://en.wikipedia.org/wiki/Comet_%28programming%29) I sort of got it working. My code is available at: http;//cyll.org/comet.tar.gz Run comet.rb from inside the directory and point your browser at: http://localhost:5555/ The

My wife and I have been working on our own task-listing, time-tracking web application, and we''re really interested in some feedback as we ourselves feel we''ve come a long way. If you have some minutes to kill (or just want to see how the Comet functionality provided by the Juggernaut plugin can work) have a look at http://www.clockingit.com and

This may be in the documentation. If so, I missed it. If a site has multiple Lustre file systems, the documentation implies that there only needs to be a single MGS for an entire site (regardless of the number of file systems). However, I also know it is fairly common to have a combined MGS/MDT. So here are the questions. 1. If we are going to have several Lustre file systems,

Folks, I have a matrix: set.seed(123) a <- matrix(rnorm(100), 10) And a vector: b <- rnorm(10) Now, I want to switch the signs of those rows of a corresponding to indices in b whose values exceed the 75 %-ile of b which(b > quantile(b)[4]) [1] 2 6 10 so I want, in effect: a[2, ] <- -a[2, ] a[6, ] <- -a[6, ] a[10, ] <- -a[10, ] I thought I could do a[which(b >

Hello all- Forgive me if this has been discussed before- I searched the archives and didn''t see anything. Anyway, here it goes- There is a lot of talk lately about Comet-based applications- that is, web apps that hold connections to the server open for a very long time, to effectively achieve realtime data push from the server to the browser. Currently, there are a few web

I''m just wondering what happened to Armageddon and whether people had any more information/news about it. I''ve thought about comet but I think that a flash socket would be easier to implement. Does Armageddon have the same drawbacks as other flash sockets, namely not working over port 80 (so the companies firewall blocks it)? -- Posted via http://www.ruby-forum.com/.

Does anyone know if it''s possible to do multiple AJAX responses to a single request in Rails? I did some googling but didn''t find anything extremely helpful. Thanks. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

Hi I am currently (for pedagogical purposes) writing a simple numerical analysis library in R. I have come unstuck when writing a simple Newton-Raphson implementation, that looks like this: f <- function(x) { 2*cos(x)^2 + 3*sin(x) + 0.5 } root <- newton(f, tol=0.0001, N=20, a=1) My issue is calculating the symbolic derivative of f() inside the newton() function. I cant seem to get R to

Hi, I''ve been doing some experiments with php and if can use something like <?php for ($i = 0; $i < 100; $i++) { echo "hello world"; flush(); sleep(10); } ?> to keep a http link open for an arbitrary amount of time and routinely display "hello world" in the browser window. Is is possible to write a mongrel handler to do something similar? Thanks

Hi, I just got at work an MGE UPS Comet EX RT 7 and I can communicate fine with it through mge-shut, it detects correctly when on battery. I am using Nut 2.0.3 on Linux (RHEL 3). I am trying to simulate a low battery condition to test my shutdown procedure by setting lowbatt to 98%: driver.parameter.lowbatt: 98 but the ups reaches this value, goes to 97% and still no LB. I tried to change,

folks, if i have three matrices, a, b, cc with some colnames in common, and i want to create a matrix which consists of the common columns added up, and the other columns tacked on, what's a good way to do it? i've got the following roundabout code for two matrices, but if the number of matrices increases, then i'm a bit stymied. > a <- matrix(1:20,ncol=4); colnames(a) <-

Hi, Can anyone guide me in building the lustre using pre-packaged lustre release.I''m using Ubuntu 7.10 I want to build lustre using RHEL2.6 rpms available on my system.I''m referring how_to in wiki. but in that no detailed step by step procedure is given for building lustre using pre-packed release. I''m in need of this. Thanks and Regards, Ashok Bharat -----Original

Dear R users, I have a dataset with two variables: $esan - a grouping factor with 8 levels and $reus. I'd like to do wilcox.test on this dataset as sugested Weiwei here: https://stat.ethz.ch/pipermail/r-help/2007-July/136627.html. I tried to adapt his recommendation but no succes. Can anyone help me? Regards, Iurie Malai, Senior Lecturer Department of Psychology Faculty of Psychology and

As an alternative to polling the client, as Ryan describes, you could consider piggy-backing the status updates on the back of other ajax responses. Which way you go depends entirely on the nature of your app, in particular: 1. how frequently it generates ajax traffic anyway 2. how long the server-side process is going to take If the server-side process takes, say, 20 seconds, polling is a

Hi, I found this article http://cyll.org/blog/tech/2006-08-09-themongrelcomet.html on mongrel and COMET very interesting. I ran the code, and it worked just as Christopher explained. The one thing I don''t understand is why mongrel can only handle 1 connection at a time. I thought that mongrel used a thread per connection. It appears that each registered handler can only handle 1

Hi, I'm new to Wine and command lines in general and I'm trying to learn how to use it. To start I installed the demo for Armageddon Empires (a seriously awesome game, check it out) and now I'm trying to run it. When I'm in my Wine program files I can see a folder called Cryptic Comet (makers of Armageddon Empires) but when I try to cd or any other command to get to the Cryptic