similar to: call perl

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

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 (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 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

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 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, My application usually works on huge amounts of data in the size of MB's .So the performance of "R" in this case will increase if Huge pages are used instead of malloc'ing (as in memory.c) . So Are there any methods to support Huge Pages in "R" ? Can any one give some inputs to help me implementing this feature? [[alternative HTML version deleted]]

Hi all, My application usually works on huge amounts of data in the size of MB's .So the performance of "R" in this case will increase if Huge pages are used instead of malloc'ing (as in memory.c) . So Are there any methods to support Huge Pages in "R" ? Can any one give some inputs to help me implementing this feature? [[alternative HTML version deleted]]

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

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

Hello R-devel, I want to write extensions for R in C (maybe C++ and Fortran later) and it works fine, but there is one problem, which I cannot solve (in my view). I want to handle a matrix from R in C. For arrays there is "as.double(...)", but nothing for a matrix. I searched a while, but didn't find something. Last I looked at the source code of e1071 and of the core itself and

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 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

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

Hi, I have problem loading Rgraphviz. Following the instructions specified by the README in Rgraphviz_1.20.3.tar.gz didn't help either. o. set the following Windows environment variables accordingly (control panel -> systems -> Advanced -> Environment Variables ): (a) create new user variables: GRAPHVIZ_INSTALL_DIR (e.g., C:\Graphviz-2.21)

Dear all, In my attempt to run the below modelling command in R 2.7.0 under windows XP (4GB RAM with /3GB switch set) I receive the following error: Error: cannot allocate vector of size 1.5 Gb I have searched a bit and have tried adding: --max-mem-size=3071M to the command line (when set to 3G I get the error that 3072M is too much) I also run: > memory.size() [1] 11.26125 >

var height = someElementReference.offsetHeight; and to set it: someElementReference.style.height = "100"; It is worth saying that offsetHeight and offsetWidth are non-standard compliance. They will give you the total rendering height and this will cause problems in IE since they use a different box model than FireFox. So you will have to do some height juggling in IE if you are using