similar to: Ideas needed on automation of R

To all I have some simple questions pertaining to weights used in regression. If the variability of the dependent variable (y) is a function of the magnitude of predictor variable (x), can the use of weights give an appropriate answer to the regression parameters and the std errors? Assume that y at x=1 and 6 has a standard deviation of 0.1 and at x=11 it is 0.4 Then according to a web page on

All Is there an R command to produce error bars around a plotted point. Crawley's book uses the command error.bar() but my version of R rejects it. Must be an S+ command(?). Thanks REX [[alternative HTML version deleted]]

Any idea why I can no longer plot two graphs on the same graphics device using the par(fig=) parameter? A simpler par(mfrow=c(1,2)) does work, showing the two plots side-by-side, but I would like the first to be larger. This simple example fails: x<-c(1,1,NA,2,2,NA,3,3) y<-c(2,4,NA,3,5,NA,1,4) par(fig=c(0,2/3,0,1)) plot(x,y) par(fig=c(2/3,1,0,1)) qqnorm(x) When plotted, the last

Is there an eloquent solution to re-assign vector element values? I have a vector which contains chemical data, some of them are "flagged" as non-detected values by their negative values. I can find the statistics on the positive values in vector "v" simply by typing: >v<- c(5,5,-3,-3,7,8,10) > v[(v>0)] [1] 5 5 7 8 10 I can also convert to positive values by

The last two times I have originated message threads on R or Bioconductor I have received the message included below from someone named Patrick Connolly. Both times I was the originator of the message thread and used what I thought was a unique subject line that explained as best I could what my question was. Patrick seems to be implying that I am abusing the R and BioC help newsgroups in this

How do I post text-string dates along the x-axis instead of the excel_date position values? I would like to plot a time-series of chemical values changing with time The first column is the internal date from excel. This should be the x-axis position of a graph of the plotted data. The second column is a text-string of date. This should be what is posted (instead of the excel_date). The third

I'm just reading Modern Applied Statistics with S, 4th Ed., Venables and Ribley I'm typing in their examples in both R and S+. I need insight in the difference in the class() statement shown in Chap. 2. Example from book: > names(powers.of.pi) <- -2:2 > powers.of.pi -2 -1 0 1 2 0.1013212 0.3183099 1.0000000 3.1415927 9.8696044 >

This is not a criticism. I'm just curious. Is there an effort to keep R comparable to S+? Or are the two languages diverging? I am doing what probably legions have done before me, and legions will after me...using R on examples from text books written with S+ code. Most of the time everything appears to be equivalent. And then there are amazing divergences in commands. For instance: S:

I'm curious if there are users of RPy on this list. I've recently created a gui front end using Tkinter for some python scripts I've written for some of our internal operations and I am quite pleased with how this program works. I wonder if it is possible to also get this gui to run R functions through the use of RPy. Going even a step further, I wonder if it is possible to get this

To All How does one get a list of functions from a loaded package so that one can then get the appropriate help for each of the functions. Currently my method is based on a lot of trial-and-error. Here's an example of what I mean... >From this forum I learn that an interesting package called "multtest" exists on Bioconductor. I then use R Console's "Packages" --

Hi all, I did my first bug report in a while. Unfortunately the good folks at wineHQ.org didn't like it much because Gentoo by default stripped out much of the backtrace info. I've recompiled Wine with more backtrace capabilities in it and am wondering what's considered good enough. Below are two backtraces. They may or may not be exactly the same failure but they both come from

I''m trying to run mongrel on port 80 and switch to a different user/group from root. As root, this works: mongrel_rails start -p 3000 -u rails --group rails This: mongrel_rails start -p 80 -u rails --group rails dies with: --------------------------- ** Changing group to rails. ** Changing user to rails. ** Starting Mongrel listening at 0.0.0.0:80

This is my New Year wishlist for R features. One common thread is that I find I sometimes use languages other than R including javascript, Windows batch and gawk. Others have mentioned other languages too. It would be nice if, in those cases I could use R simplifying development into a single environment (viz. R). The following are not in any order. 1. Self Contained Executables Make it

Regards. I'm a beginner in programing, so I have a basic question for you. If someone could help me please.. I want to create a function, which will be able to export files from excel. I tried with a <- read.csv(file, sep =",", as.is = TRUE, row.names = 1, header = TRUE), .. but instead of numbers, it gives me strings for example: "299,311". I can handle this string

> On 5/23/06, Walter <Walter at mwsewall.com> wrote: > [...] > > I realize that mongrel is not thread safe, I was hoping mongrel might > spawn a few processes and serve them in the background to emulate what I > wanted. > > > > Rails is not thread-safe. > Yes, that?s what I meant. <snip> > > The idea of the BackgroundDrb is that you perform

Eribium, a content managing system built with rails has been released completely free under the MIT License. http://www.eribium.org/eribium/?p=21 You can find a demo here: http://alexmaccaw.no-ip.info:3000/admin (user and pass are ''demo''). Some of the features include: * Completely Unobtrusive Javascript. * Liquid View, works with pretty much any screen resolution.

All, I am using a sum of squared differences in the objective function of an optimization problem I am doing and I have managed to speed it up using the outer function versus the nested for loops, but my suspicion is that the calculation could be done even quicker. Please see the code below for a simple example. If anyone can point out a faster way I would appreciate it greatly. Thanks, Roger

Is it possible to write activex controls and windows DLLs in ruby? I would like to have some of my logic be usable from VB (don''t ask why). Thanks.

Most mornings, I have over a screenful of messages mostly from R-help and it's very useful to have them threaded. However, the usefulness of threading is lost when posters reply to a message and then change the subject instead of creating a new message. People who don't have a mail client that can display email in threads are probably unaware that this sort of thing can happen in ones

Hello, I recently lost access to my workspace developed over a long time. When I try to load this work space (called Casmalia.Rdata) or double click on it to open it in R, I see a popup which says (Embedded image moved to file: pic17720.jpg) : And under this, the last line in the console commands is: "Bad restore file magic number. (File may be corrupted) - no data loaded." The