search for: andrewr

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2005 Apr 19
2
Odd diagnostic plots in mixed-effects models
...is effect likely to compromise the interpretation of any of the other standard diagnostic plots (eg qqnorm)? Thanks much for any thoughts, Andrew -- Andrew Robinson Ph: 208 885 7115 Department of Forest Resources Fa: 208 885 6226 University of Idaho E : andrewr at uidaho.edu PO Box 441133 W : http://www.uidaho.edu/~andrewr Moscow ID 83843 Or: http://www.biometrics.uidaho.edu No statement above necessarily represents my employer's opinion.
2003 Mar 08
2
Looking for non-central F quantile
...ould put together a quick numerical solver routine using the CDF, but I wonder if there's a function that I've missed that would be more efficient? Thank-you, Andrew Andrew Robinson Ph: 208 885 7115 Department of Forest Resources Fa: 208 885 6226 University of Idaho E : andrewr at uidaho.edu PO Box 441133 W : http://www.uidaho.edu/~andrewr Moscow ID 83843 Or: http://www.biometrics.uidaho.edu No statement above necessarily represents my employer's opinion.
2004 Nov 10
1
List seems to drop empty levels of factors when containin g them
...them (I am using the list for a two-dimensional tapply). Is there any way to avoid this? I'm using R 2.0.0 on FreeBSD 5.2.1. Thanks, Andrew -- Andrew Robinson Ph: 208 885 7115 Department of Forest Resources Fa: 208 885 6226 University of Idaho E : andrewr at uidaho.edu PO Box 441133 W : http://www.uidaho.edu/~andrewr Moscow ID 83843 Or: http://www.biometrics.uidaho.edu No statement above necessarily represents my employer's opinion. ______________________________________________ R-help at stat.math.et...
2002 Jul 18
3
Oddity with names
...c("name1", "name2", "name3") Can anyone suggest why the first doesn't work? Ought an error be reported? Thanks, Andrew Andrew Robinson Phone: 208-885-7115 Department of Forest Resources Fax: 208-885-6226 University of Idaho E: andrewr at uidaho.edu Po Box 441133 WWW: http://www.uidaho.edu/~andrewr Moscow, ID 83843 and: http://www.biometrics.uidaho.edu/ No statement above may be construed to necessarily represent my employer. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...
2002 Jul 07
2
R on Sharp Zaurus 5500?
Hello, has anyone tried to get R running on a Sharp Zaurus 5500? Andrew Andrew Robinson Phone: 208-885-7115 Department of Forest Resources Fax: 208-885-6226 University of Idaho E: andrewr at uidaho.edu Po Box 441133 WWW: http://www.uidaho.edu/~andrewr Moscow, ID 83843 and: http://www.biometrics.uidaho.edu/ No statement above may be construed to necessarily represent my employer. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...
2004 Mar 23
2
Coefficients and standard errors in lme
Hello, I have been searching for ways to obtain these for combinations of fixed factors and levels other than the 'baseline' group (contrasts coded all 0's) from a mixed-effects model in lme. I've modelled the continuous variable y as a function of a continuous covariate x, and fixed factors A, B, and C. The fixed factors have two levels each and I'd like to know whether
2004 Mar 26
8
stop() vs. error() ?
Why does stop("we are done") print "Error in eval.with.vis(expr, envir, enclos) :" ? It would seem to me that a plain stop() is not an error, and that it would make more sense to have an error() function that is different from a stop(). Is there a rationale here that I am missing? sincerely, /iaw
2004 Sep 21
2
Bootstrap ICC estimate with nested data
I would appreciate some thoughts on using the bootstrap functions in the library "bootstrap" to estimate confidence intervals of ICC values calculated in lme. In lme, the ICC is calculated as tau/(tau+sigma-squared). So, for instance the ICC in the following example is 0.116: > tmod<-lme(CINISMO~1,random=~1|IDGRUP,data=TDAT) > VarCorr(tmod) IDGRUP = pdLogChol(1)
2004 Mar 10
3
converting lists got by tapply to dataframes
I have two lists: xa <- list( X=c(1,2,3), Y=c(4,5,6), Z=c(7,8,9) ) xb <- with( barley, tapply( X=seq(1:nrow(barley)), INDEX=site , FUN=function(z)yield[z])) I can convert xa to a dataframe easily with: as.data.frame(xa) But if i try the same with xb I get: as.data.frame(xb) Error in as.data.frame.default(xb) : can't coerce array into a data.frame What
2003 Apr 13
2
Peculiarity in non-central qchisq for ncp > 294.92 ...
...inXP, and I find that the following hangs the process: dchisq(alpha=0.01, df=1, ncp=295) but it does work for ncp < 294.92. Is this general? Best wishes to all, Andrew Andrew Robinson Ph: 208 885 7115 Department of Forest Resources Fa: 208 885 6226 University of Idaho E : andrewr at uidaho.edu PO Box 441133 W : http://www.uidaho.edu/~andrewr Moscow ID 83843 Or: http://www.biometrics.uidaho.edu No statement above necessarily represents my employer's opinion.
2004 Apr 06
0
Curious about nomenclature: random deviates
...his is the earliest use - just the easiest to access at the moment)). But everyone knows the real reason for the term is to create the oxymoron 'normal deviates' - it's a great name for a softball team of statisticians :) Bob -----Original Message----- From: Andrew Robinson [mailto:andrewr at uidaho.edu] Sent: Tuesday, April 06, 2004 12:13 AM To: r-help at stat.math.ethz.ch Subject: [R] Curious about nomenclature: random deviates Hi all, a student of mine recently stumbled whilst reading the R help files for the statistical distributions. She was confused by their assertion that...
2003 Sep 01
1
par(new=T) works differently in pdf vs postscript if applied before a plot statement. (PR#4037)
..., package:lattice, package:tools, package:methods, package:ctest, package:mva, package:modreg, package:nls, package:ts, Autoloads, package:base -- Andrew Robinson Ph: 208 885 7115 Department of Forest Resources Fa: 208 885 6226 University of Idaho E : andrewr@uidaho.edu PO Box 441133 W : http://www.uidaho.edu/~andrewr Moscow ID 83843 Or: http://www.biometrics.uidaho.edu No statement above necessarily represents my employer's opinion.
2005 Jun 15
2
Plotting second axes outside xyplot
...labels = c(1, 3), outside = T) }, aspect = "xy") Does anyone have any suggestions? Thanks much! Andrew -- Andrew Robinson Ph: 208 885 7115 Department of Forest Resources Fa: 208 885 6226 University of Idaho E : andrewr at uidaho.edu PO Box 441133 W : http://www.uidaho.edu/~andrewr Moscow ID 83843 Or: http://www.biometrics.uidaho.edu No statement above necessarily represents my employer's opinion. ----- Original Message ----- From: Werner Bier <aliscla at yahoo...
2005 Jan 02
2
How to quieten axis() for Sweave: avoid echoing NULL?
...d remove them, but I was wondering: is it something I can avoid? Or am I doing something foolish and obvious? Thanks for any assistance, Andrew -- Andrew Robinson Ph: 208 885 7115 Department of Forest Resources Fa: 208 885 6226 University of Idaho E : andrewr at uidaho.edu PO Box 441133 W : http://www.uidaho.edu/~andrewr Moscow ID 83843 Or: http://www.biometrics.uidaho.edu No statement above necessarily represents my employer's opinion.
2014 Aug 20
10
[Bug 82834] New: GeForce 8800 GS shows incorrect temperature with nouveau
https://bugs.freedesktop.org/show_bug.cgi?id=82834 Priority: medium Bug ID: 82834 Assignee: nouveau at lists.freedesktop.org Summary: GeForce 8800 GS shows incorrect temperature with nouveau QA Contact: xorg-team at lists.x.org Severity: normal Classification: Unclassified OS: Linux (All)
2004 Dec 13
2
Farmating printed Numbers and Text
Hello, is there any function to print (using "cat" or "print" etc.) a table of values row per row in a exact order, even if the value has 3 digit and in the next row eg. 5 digits? This means I want to print a number with 3 digits with 2 spaces in front and a number with 4 digits only with one space in front. regards Andreas
2004 Mar 10
1
Non-linear regression problem: R vs JMP (long)
...art = list(b = 0.2, u = 1, a1 = 0.4, a2 = -0.1, a3 = -0.01, a4 = 3, a5 = -0.02, a6 = 0.25, a7 = 0.40)) Any insights will be appreciated! Andrew -- Andrew Robinson Ph: 208 885 7115 Department of Forest Resources Fa: 208 885 6226 University of Idaho E : andrewr at uidaho.edu PO Box 441133 W : http://www.uidaho.edu/~andrewr Moscow ID 83843 Or: http://www.biometrics.uidaho.edu No statement above necessarily represents my employer's opinion.
2002 May 06
1
Load Data
Dear R Users What's the easiest way to load an excel data file to R? Thanks Rick --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.351 / Virus Database: 197 - Release Date: 19/4/2002 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read
2003 Oct 24
1
Dataframes of marginal summaries
...c(2:4,1)] ======================================================================= Any suggestions to simplify would be much appreciated. Andrew -- Andrew Robinson Ph: 208 885 7115 Department of Forest Resources Fa: 208 885 6226 University of Idaho E : andrewr at uidaho.edu PO Box 441133 W : http://www.uidaho.edu/~andrewr Moscow ID 83843 Or: http://www.biometrics.uidaho.edu No statement above necessarily represents my employer's opinion.
2003 Dec 08
0
TukeyHSD changes if I create interaction term
...TukeyHSD(fm2, "WT") ======================================================================= I would appreciate any advice. Andrew -- Andrew Robinson Ph: 208 885 7115 Department of Forest Resources Fa: 208 885 6226 University of Idaho E : andrewr at uidaho.edu PO Box 441133 W : http://www.uidaho.edu/~andrewr Moscow ID 83843 Or: http://www.biometrics.uidaho.edu No statement above necessarily represents my employer's opinion.