similar to: ideas, modeling highly discrete time-series data

Hi all, I am using the package "random forest" for random forest predictions. I like the package. However, I have fairly large data sets, and it can often take *hours* just to go through the "na.roughfix" call, which simply goes through and cleans up any NA values to either the median (numerical data) or the most frequent occurrence (factors). I am going to start

Hello, This is mostly to developers, but in case I missed something in my literature search, I am sending this to the broader audience. - Are there any plans in the works to make "time" classes a bit more friendly to the rest of the "R" world? I am not suggesting to allow for fancy functions to manipulate times, per se, or to figure out how to properly

Hello, This is mostly to developers, but in case I missed something in my literature search, I am sending this to the broader audience. - Are there any plans in the works to make "time" classes a bit more friendly to the rest of the "R" world? I am not suggesting to allow for fancy functions to manipulate times, per se, or to figure out how to properly

Hi everyone, I have another "Random Forest" package question: - my (presumably incorrect) understanding of the varImpPlot is that it should plot the "% increase in MSE" and "IncNodePurity" exactly as can be found from the "importance" section of the model results. - However, the plot does not, in fact, match the "importance"

Hey everyone, I know that I can call 'R' from other scripts, and that I can make command calls from 'R' (e.g., using system() ). But how can I get 'R' to RETURN values to the script that called it. E.g., I would like to be able to do something like the following (as a simpler example) from a bash script: #!/bin/bash myTest=echo /usr/local/bin/R --no-restore

Hi All, First let me state that I did search for a while on r-help, google, and using the "sos" package inside of 'R', without much luck. I want to know how to create a univariate time series from a set of data that will have huge time gaps in it. For instance, here is a snapshot of a piece of data that I would like to analyze: *Row queued_time

Hello All, Using the standard "summary" function in 'R', I ran across some odd behavior that I cannot understand. Easy to reproduce: Typing: summary(c(6,207936)) Yields:: Min. *1st Qu. Median Mean 3rd Qu. Max.* 6 *51990 104000 104000 156000 207900* None of these values are correct except for the minimum. If I perform "quantile(c(6,

Hello, A hopefully simple question. I use 'R' through emacs, but I suspect the following would occur with any manner of text editor: - my editor has a normally quite handy feature where it will automatically indent to the appropriate level when I start a new line. However, this occasionally creates cases where there is no friendly way to break a long line of code into

Hey everyone, I've been using 'R' long enough that I should have some idea of what the heck either expression() or eval() are really ever useful for. I come across another instance where I WISH they would be useful, but I cannot get them to work. Here is the crux of what I would like to do: presume df looks like this A B C === === === M 45 0 M

Hello all, I have a strange / interesting problem that might be 'R' settings themselves, or it might be something with the OS. I am using the RODBC library. I have a script that goes out and, before making a query for a big data set, will first query for the column names of the data set. The column names could sometimes be quite long (e.g., "Time Background Estimation

Hello all, I have a peculiar and particular bug that I stumbled across with ggplot2. I cannot seem to replicate it with anything other than my specific data set. Here is the problem: - when I try to plot a histogram, allowing for ggplot2 to decide the binwidths itself, I get the following error: - stat_bin: binwidth defaulted to range/30. Use 'binwidth = x' to

Hello developers, I noticed that if I am running 'R', type "rm(list=objects())" and "gc()", 'R' will still be consuming (a lot) more memory than when I then close 'R' and re-open it. In my ignorance, I'm presuming this is something in 'R' where it doesn't really do a great job of garbage collection... at least not nearly as well as

To all, Does anyone know whether there are any Discrete Choice Modeling modules for R?? Thanks, Charlie ------------------------- Charles H. Rosa, Ph.D. Staff Research Engineer General Motors Corporation R&D and Planning Mail Code 480-106-359 30500 Mound Rd Warren, MI 48090-9055 Tel/work/cell: +1 248 670-8389 Fax/work: +1 586 986-0574

All, I would like to submit the attached patch, which allows the GHC (Glasgow Haskell Compiler) calling convention to work on ARM targets. Could some nice person please review this code, so I can move towards getting it committed? I have thoroughly tested this patch again GHC on a Debian-ARM (armel) system. Unfortunately my understanding of LLVM is limited, so it's likely I'm not

David, Thanks for that - I emailed Karel Gardas. I've got GHC successfully registerised on ARM, and I'm just starting on pushing it upstream. The reason why I'm avoiding the R0-R3 registers is mainly because my qemu-based ARM VM takes days to compile everything, and I was being conservative. The GHC code can call directly out to C, so it would need to save its own R0-R3 when it

Hi Steve, I'm not an LLVM developer but am the author/maintainer of the LLVM backend in GHC. The patch looks mostly good to me (although I am not that familiar with ARM so could easily have missed something). My main concern is why are you avoiding using the R0 - R3 registers? Also, could you please update me on the status of this work. I assume you are getting GHC running in registerised

This is a new install with a very novice samba user . We are running samba 3.0.20 on a Solaris 9 server. We have 3 domains controllers - 1 old NT and 1Win 2000 Active Directory and 1 Win 2003 Active Directory. The support group that administers the domains, have a limited skill set. If its not Windows they have nothing to contribute. The Domain Controllers are called TACOMANEWS - Win 22000

In a recent talk ('Visions of the Past, Present & Future of Statistical Graphics'), I talked about, among other things, the lessons Minard's March on Moscow graphic had for modern statistical graphics, and illustrated aspects of power and simplicity in several programming languages where this graphic had been recreated. I referred to 'elegance factors' of various

I'm trying to run Sonar 8 via Wine. I was advised to run vcrun2005, vcrun2005sp1, and run those after setting Wine to win2k, all to no avail. I started a thread here: http://forums.gentoo.org/viewtopic-p-5906267.html#5906267 I'd appreciate any tips. I'm SERIOUSLY trying to leave Windows for good, but I need this program until I've got something equivalent set up under Linux. I

Hi, In class parameters, things like x="x", y="y${x}" don''t always evaluate right (y="yx"), seems random. I''m using 2.7.1 class test1( $servicex = "sonar", $logfoldera = "${homex}/logs", $logfoldere = "${homey}/logs", $logfolderh = "${homez}/logs", $logfolder =