similar to: Using Huge Pages for R

Hi R-Developers, I'm working on running statistical analyses with embedded R from a Qt-GUI-application (C++). I've been able to link with R libraries, but I'm having a hard time to understand the C-coding examples. I'm a C++, not a C programmer (never used malloc before), and many of the R-specific functions/keywords/macros (for instance (UN)PROTECT, SETCAR, all the

Hi R, Can we download Reuters (3000 Xtra) data from R? Does ODBC package help me in this? Or otherwise, is there a way to extract daily closing prices data of Reuters from R? Thank you very much, Shubha This e-mail may contain confidential and/or privileged i...{{dropped:13}}

Hi all Does anyone know if it is possible when plotting a line or scatter plot, to selectively color the data points based on the data value? i.e. if plotting say the percentage change in stock price movements, to color +ve points in green and -ve points in red? And extending this to a user-defined range of colors based on the quartile of the data points? Thanks Rory Rory Winston RBS Global

Sender: r-help-bounces at r-project.org On-Behalf-Of: comtech.usa at gmail.com Subject: Re: [R] [R-SIG-Finance] forecasting earnings, sales and gross margin of a company... Message-Id: <b1f16d9d0810231239k506d582i7ecb908b84bc1642 at mail.gmail.com> Recipient: ngottlieb at marinercapital.com -------------------------------------------------------- This information is being sent at the

Hi all (I'm sure this question has been asked before, but I cant find it). If I have two character vectors: > x <- c("aaa","bbb","ccc") > y <- c("1","2","3") How can I get the cartesian product of the string values? > expand.grid(x,y) Gives me a data frame with separate columns...however, I cant seem to get *apply

Hi all If I have a string, say "ABCDA", and I want to convert this to the sum of the letter values, e.g. A -> 1 B -> 2 etc, so "ABCDA" = 1+2+3+4+1 = 11 Is there an elegant way to do this? Trying something like which(LETTERS %in% unlist(strsplit("ABCDA", ""))) is not quite correct, as it does not count repeated characters. I guess what I need is

Hi all Here is a rather naive implementation of the SEPA algorithm for generating lexical permutations: lexperm3 <- function(x, n=length(x)) { perms <- list() k <- 1 perms[[k]] <- x k <- k + 1 for (y in 1:(factorial(n)-1)) { i <- n-1 while (x[i] > x[i+1] && i > 0) { i <- i - 1 } # i is largest index st x[i] > x[i+1] j <- n #

Hi I have a data frame which looks like the following (it is a table of commit logs to a source repo). The Author column is treated as a factor, by virtue of stringsAsFactors being set to TRUE, so I can extract the number of commits per author by using table(logs$Author). Is there an elegant way to extract all subsets of this frame by the Author column - i.e. that returns say a list of data

I''m trying to attach effects to elements in my onload handler and my lack of Javascript-fu is showing... I want to call the effect from the onclick handler of an anchor inside the div I want the effect to apply to. Here''s what I''m trying to do: function doOnLoad() { var filters = document.getElementsByName(''filter''); for

Has anyone done much work with server-side push and AJAX/J? (XML or JSON) As best I can tell, the ideal solution to this would be the multipart/x-mixed-replace MIME type. Mozilla''s XMLHttpRequest now has support for this, so this is on people''s minds, but how to make it work on the server end? You have to keep a connection open.....and a process on the server to go with it.

Hi all, I encountered a big problem when trying to use Scriptaculous and Htmlarea in the same page. The Htmlarea code uses a lot of "for (var i in array_variable)" to iterate on array elements. Problem is that prototype.js augments Array.prototype, which then show up in the iteration, severely breaking htmlarea. The easy workaround is for sure to use "for (var i = 0; i <

I am looking at histogram breaks, and notice something odd: > foo <- hist(runif(10000),breaks=20) > length(foo$breaks) [1] 21 This makes sense to me. > foo <- hist(runif(10000),breaks=200) > length(foo$breaks) [1] 201 This also makes sense. BUT > foo <- hist(runif(10000),breaks=250) > length(foo$breaks) [1] 201 > foo <- hist(runif(100000),breaks=250) >

Dear All, I have a correlation matrix of size 100 x 100 and would like to extract the diagonal matrix from it. I have used the for loop to store tha correlation values of the diagonal matrix. Is there a 'R way' of doing this? Thanks in advance. Kind regards, Ezhil

Hi All Not strictly Scriptaculous but I came across this whilst trying to implement some Scriptaculous code. I am hoping some XHTML guru out there might be able to shed some light. If you load up the attached file in IE6, you''ll see the events only fire in the middle section of the title bar when your over the border ! - FF1.5 is fine.. Any thoughts / comments appreciated.. Cheers

I know that the prototype library was paired with Rails but I''m curious if anyone has used the ajax part (of the libraries) with java servlets? If so could you please point me to some examples or documentation. Cheers, Marty

often when I "try to" visit the scriptaculous, it crashes IE - does anybody else experience this as well? _________________________________________________________________ FREE pop-up blocking with the new MSN Toolbar – get it now! http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/

Hi all, I am playing with some companies' balance sheets and income statements and want to apply what I've just learned from Stats class to see if I can forecast the companies earnings, sales and gross margin in the short term (3rd and 4th Quarter), mid-term (2009) and long term (2011, etc. ) I pulled up some data from companies' financial statements over the past a few years. The

Hey Guys, I know this isn''t specific to scriptaculous libraries but it''s something that I''m exploring as I use the ajax functions in prototype. My application server is not rails but java and I was thinking of returning a javascript array in the ajax response. When I get back my response is it, of course, text and I''m not sure how best to convert it into

Perhaps I missed something but I don''t see an easy way to do this ? Basically just wanna hold some ui state in a cookie. Did I miss something obvious ? Best Matt *********************************************************************************** The Royal Bank of Scotland plc. Registered in Scotland No 90312. Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB. Authorized and

Hey all, I''m not sure if IE can support this, but I''m trying to get the dimensions of an element that has percentages for height/width. In the example code below, I''m trying to get the dimensions for the ''MyCell'' element. Firefox supports Element.getDimensions(''MyCell''), but IE returns 0 for the height & width returned by that