similar to: Change in behaviour of sd()

Displaying 20 results from an estimated 3000 matches similar to: "Change in behaviour of sd()"

2004 Aug 19
3
Do you know if you can map a large minimum spanning tree in R?
Thanks Mike. My data has longitude and latitude coords and I used distAB {clim.pact} then mst {ape} to calculate my minimum spanning tree. The nodes are telecoms sites from all over Australia. My goal is to determine the minimum cost of linking them via cabling, and I'm starting by calculating the distance "as the crow flies", but will probably eventually need to calculate the
2010 Aug 16
1
Strategy for maintaining R in student PC labs
Dear All At institutes where there are PC labs used by Masters and undergraduate students and software is maintained /managed by a central IT services, do you always update R every time a new version is released - around beginning of April and October? Do you also ask them to install all patch releases as they turn up? Currently our IT department update once a year before the start of the Autumn
2007 Sep 10
1
using bootstrap for tree selection step in rpart
Hi I was wondering if someone could help me with an rpart problem. I can see that cross-validation is the default for tree selection in rpart -- has a bootstrap method been implemented anywhere? I think this is a different thing to 'bagging' or 'boosting' -- I still want 'one' tree at the end, I just would like it chosen using a bootstrap method. Any ideas??? Thanks
2006 Mar 19
2
Obtaining the day of any given date
R-Help Please can you tell me if there is a function within R that will return the day of any given date? Using 19 March 2006 as an example: given 20060319 (or any other date format) will return the day Sunday. Many thanks Fiona.
2004 Jun 24
2
"Set-up files corrupted" error message
I've tried to download rw1090.exe 3 times and rw1081.exe once onto a Windows XP from the UK mirrors (I've tried both of them). When the download is complete and I double-click on the icon I get an error message telling me the set-up files are corrupted and to obtain a new copy of the program. I have spent quite a lot of time checking the message archives but I can't find a solution. If
2007 Jun 19
1
[LLVMdev] Question about adding a pass in LLVM
Hi, I've met a problem when I am trying llvm. I've added a small pass in it, and when I define or use an object of APInt class, it will get the following output while running: $ opt -load hello.so -hello test.bc -o test.hello.bc opt: CommandLine Error: Argument 'disable-opt' defined more than once! opt: CommandLine Error: Argument 'disable-inlining' defined more than
2008 Jul 17
2
Fw: how i can install Rgraphviz in R2.7.1
--- On Tue, 15/7/08, haani hanni <maaryam_khan@yahoo.com> wrote: From: haani hanni <maaryam_khan@yahoo.com> Subject: how i can install Rgraphviz in R2.7.1 To: "Nabble" <support@nabble.com> Cc: r-help-request@r-project.org Date: Tuesday, 15 July, 2008, 1:39 PM hello i am a new user of R.i have window XP Proffessional in my P.C.i wanted to make the graphs of my
2010 Nov 23
6
Filled contour plot showing labeled isolines?
Is it possible to create a contour plot with the isolines labeled. I know you can do this with Matlab. Argh! I tried creating a filled contour plot, then using par(new=T), followed by overlaying the contour plot on top. However, the placement of the filled contour plot and the contour plot do not align correctly. Any suggestions would be appreciated. Thanks, Jon -- View this message in
2008 Oct 02
1
possible bug in function 'var' in R 2.7.2?
Dear R-Help, I have used R2.6.0 until I recently installed also R2.7.2 (see details below) In R 2.6.0, the following script using the function 'var' (cor(stats)): x.test <- c(NA, NA, NA, NA) var(x.test, na.rm=T) gives the output: NA In R2.7.2 the output of the same script generates an error message and stops R: 'Error in var(x.test, na.rm = T)
2015 Sep 14
3
Optimization bug when byte compiling with gcc 5.2.0 on windows
When building R-devel with gcc 5.2.0 (mingw-w64 v4) on Windows, make check fails reg-tests-1b.R at the following check: x <- c(1:2, NA) sx <- sd(x) !is.nan(sx) Here 'sx' should be 'NA' but it is 'NaN'. It turns out this problem only appears when the function is byte compiled with optimization level 3: mysd <- function (x, na.rm = FALSE) sqrt(var(if
2011 Jul 26
2
R 2.13.1 for Windows: error when loading (some) packages
I am using the latest version of R 2.13.1 and need to load the following packages; library(maps) library(mapdata) library(mapproj) library(lattice) library(tgp) library(spatstat) library(akima) I get the follwing error when loading the packages, "maps", "mapdata" and "mapproj" Error: package 'maps' is not installed for 'arch=i386' Error: package
2007 Nov 08
2
centile reference chart / clildren growth chart - what package/method to use
We are constructing growth charts (age/weight and age/length) for children with diagnosis that impacts weight/length. But we we don't know how to use R for producing growth charts. We are collection data of Age, Weight and Length. The data are used to produce diagnosis-specific Growth charts (like the CDC Growth Charts:
2008 Aug 22
1
R memory limitations under Windows vs UNIX
Hi all, Our section at work is looking at buying a high-powered computer (32 Gb RAM, 64-bit) to be able run models on large datasets and have more processing power for the software we commonly use. We mostly use R to fit GLMs and GAMs. Our department uses Windows as the standard OS (we are upgrading to Vista in the next few months) and so most people would be in favour of having the same OS on
2006 Jun 24
1
difference in results from R vs SPSS
Hi all, 1. I am doing some data analysis using both R and SPSS, to get used to both software packages. I had performed linear regression in R and SPSS for a number of times before this last one and the resulting coefficient values always matched. However, this last data set I was analyzing using simple linear regression and using the command lm(y~x), gave me different readings from R and
2008 Jul 17
3
Hiding information about functions in newly developed packages
Dear UseRs: I intend to write a package to handle the basic operations a revenue management analyst has to deal with on a regular basis (e.g., demand untruncation, capacity allocation, pricing decisions, etc.). Following the directions posted by Peter Rossi (Making R Packages under Windows: A Tutorial, January 2006) I was able to build an interim package that currently consists of one simple
2004 Aug 06
4
Problems streaming high bitrate over a LAN
I am trying to stream various 320kbps MP3s across my 10Mbps LAN. Either locally or across the network, freeamp and xmms prefetch a chunk, then play it, then fetch another chunk etc. No continuous streaming. shout gets a lot of !s between its "."s when sending the file to icecast. Any ideas? -- Always hardwire the explosives -- Fiona Dexter quoting Monkey, J. Gregory Keyes, Dark
2007 Oct 31
1
reversing the scale on ggplot
Dear All, I am trying to build a simple ggplot, but where the scale is reversed, i.e. the largest numbers are on the bottom. An example of the code I am using is > plotdata<-data.frame(x=1:10, y=runif(10)) > plot<-ggplot() > plot<-plot+layer(data=plotdata, mapping=aes_string(x='x',y='y'), geom='point', stat='identity', size=4) >
2007 Nov 21
1
R 2.6.0 Error in X11() : could not find X11 fonts
All- I have rhel4 and just installed R2.6.0. The error suggests it cant find the font library. I have failed to trouble shoot. Can anyone help me? Thanks James Correia Jr Post Doc PH: 372-6463 james.correia at pnl.gov "Wisdom. Strength. Courage. Generosity. Each of us are born with one of these. We must find the other three inside of us." -from "Into the West"
2008 Feb 04
1
r-release Windows x86_64
I was just looking at the daily checks and it seems the "r-release Windows x86_64 (32-bit)" column is running R2.6.0. Is that correct? Possibly related, an error is being flagged in that column for TSMySQL, which appears to be a problem that should be caught in the other columns too. It is something that has been fixed in my sources for awhile. (I think it was fixed in the
2007 Nov 15
1
problem with png()
Hi, I am runing R2.6.0 (2007-10-03) on WindowsXP. If I use png() to save a plot I lose the main title. An example: ########################## outfile <- "outfile.png" p11 <- histogram( ~ height | voice.part, data = singer, xlab="Height", main="Ingo's title") p2 <- histogram( ~ height, data = singer, xlab = "Height") png(outfile,