search for: catchpol

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2000 Nov 29
4
offset
...enstat calls an offset, ie a regression variable with the coefficient constrained=1. I'm far from home and have Splus but not R here, but any information from either source would be very welcome. I'd hate to have to go back to using Genstat . . . Thanks, Ted. --------------- Dr E.A. (Ted) Catchpole School of Maths & Stats University College, UNSW Institute of Maths & Stats Australian Defence Force Academy University of Kent at Canterbury e-catchpole at adfa.edu.au Canterbury, CT2 7NF, England http://www.ma.adfa.edu.au/~eac E.A.Catchpole at ukc.ac.uk -.-.-.-.-.-.-.-.-.-...
2001 Feb 13
3
xfig boxplot (polygon) bug??
...out, but > boxplot just produces function (x, ...) UseMethod("boxplot") Is there any way I can get at the boxplot code? Or is there another way out of my problem? I'd be very grateful for any help. I'll post this as a bug if this is confirmed. Thanks, Ted. Dr E.A. (Ted) Catchpole School of Maths & Stats Honorary Senior Research Fellow University College, UNSW Institute of Maths & Stats Australian Defence Force Academy University of Kent at Canterbury Canberra, ACT 2600, Australia Canterbury CT2 7NF,...
2001 Feb 13
3
xfig boxplot (polygon) bug??
...out, but > boxplot just produces function (x, ...) UseMethod("boxplot") Is there any way I can get at the boxplot code? Or is there another way out of my problem? I'd be very grateful for any help. I'll post this as a bug if this is confirmed. Thanks, Ted. Dr E.A. (Ted) Catchpole School of Maths & Stats Honorary Senior Research Fellow University College, UNSW Institute of Maths & Stats Australian Defence Force Academy University of Kent at Canterbury Canberra, ACT 2600, Australia Canterbury CT2 7NF,...
2003 Feb 19
2
plotmath
...what I'm trying to produce is \log(-\log(\hat R)) My (probably hopeless) attempt at it uses nested group()s: expression(plain(log) * group("(", -plain(log)*group("(", \hat(R), ")"), ")")) Can anyone do it right for me, please? Thanks, Ted. Dr E.A. Catchpole ---------------------------------- | Associate Professor | ------------------------------ | School of Maths & Stats | | Hon Senior Research Fellow | | University of New South Wales at | | Institute of Maths & Stats | | Australian Defence Force Academ...
2001 Sep 18
1
textbook on experimental design?
...and Ripley MASS Ch6 on Linear Models covers roughly the right material, but at a level that is way too difficult for my students.) Sorry if this has been asked before. I've looked through the archives and found Julian Faraway's book, but that's mainly regresion. Thanks, Ted. Dr E.A. Catchpole School of Maths & Stats Honorary Senior Research Fellow University College, UNSW Institute of Maths & Stats Australian Defence Force Academy University of Kent at Canterbury Canberra, ACT 2600, Australia Canterbury CT2 7NF, England e-catchpole at...
2001 Sep 20
1
Re: text book on experimental design
Andy, Thanks. Note that DeVeaux's book, at www.williams.edu/Mathematics/rdeveaux/book/book.html, is marked "For use only by students of Math 244 Spring 2001, Williams College" and "DRAFT: do not distribute or copy". Ted. Dr E.A. Catchpole School of Maths & Stats University College, UNSW Institute of Maths & Stats Australian Defence Force Academy University of Kent at Canterbury Canberra, ACT 2600, Australia Canterbury CT2 7NF, England e-catchpole at adfa.edu.au E.A.Catchpole at uk...
2000 Aug 30
3
family question
Dear friends. Please see the program below and answer if it does simulate a population of 1.000.000 families, each with at max 20000 children (typical in Denmark, you know), constructed such that each family stops having children when more boys than girls are present ? Equal numbers of boys and girls are got in the population, according to the simulation, is that obvious ? ND <- NP <-
2005 Jan 14
1
glmm multinomial?
I'm looking for something like Brian Ripley's glmmPQL that will handle multinomial data. Does anyone know of anything? Thanks, Ted. -- Dr E.A. Catchpole Visiting Fellow Univ of New South Wales at ADFA, Canberra, Australia and University of Kent, Canterbury, England - e.catchpole at adfa.edu.au - www.ma.adfa.edu.au/~eac - fax: +61 2 6268 8687 - ph: +61 2 6268 8895
2002 Feb 28
3
R-plots with 'complex' axis-labelling
Hi there, I want to create plots with some kind of 'complex' axis labelling of the form $\dot{V}$ and integrate those plots into a LaTeX document. What is the best way to go? I've figured out, that the 'plotmath' commands are somewhat limited (at least I wasn't able to get the $\dot{V}$ generated) and that plots with 'plotmath'-axes wouldn't export
2007 Oct 31
2
R GUI for Linux
I have downloaded and tried to install JGR - Java GUI for R - Version 1.5. I followed all the instructions (at least in my best resolution) and installed Java latest version. R installation complete fine. Has anyone succeded in installing JGR on SuSE 10.3 ? In the following I hade detailed the failed installation, As root /i did the following: linux-Mimin:/usr/local/bin # ./R R version 2.6.0
2001 May 31
0
Problem with xfig()
...the same example in R 1.2.3 for Windows (2001-04-26) and the problem seems to be fixed (at least with the graphics generated by example(barplot)). Then I had a better look to the mailing list archive and the problem seems to be solved in the following thread: [R] xfig boxplot (polygon) bug?? e.catchpole at adfa.edu.au (Tue Feb 13 2001 - 04:51:56 CET) Re: [R] xfig boxplot (polygon) bug?? Prof Brian D Ripley (Tue Feb 13 2001 - 08:28:59 CET) RE: [R] xfig boxplot (polygon) bug?? Yves Gauvreau (Tue Feb 13 2001 - 10:07:04 CET) which is just a bit later than the version of R tha...
2006 Aug 28
3
Firefox extension fo "R Site Search"
Dear useRs, ================================================= Search for your R routines directly from Firefox! >> http://addictedtor.free.fr/rsitesearch ================================================= Mango Solutions, providers of R and S-Plus consulting, application development and training, are happy to announce the first release of the R Site Search extension for Mozilla Firefox.
2007 Apr 23
2
Problem with dgamma ?
Hi All, Here 's what I got using dgamma function : > nu<-.2 > nu*log(nu)-log(gamma(nu))+(nu-1)*log(1)-nu*(1) [1] -2.045951 > dgamma(1,nu,nu,1) [1] 0.0801333 > dgamma(1,nu,nu,0) [1] NaN Warning message: NaNs produced in: dgamma(x, shape, scale, log) Could anyone tell me what is wrong here ? I am using R-2.4.1 on windows XP. Thanks a lot.
2005 Aug 30
2
about "pnorm"
As to the function"pnorm",the default degree of freedom(df) is infinite. I wanna know how to set the df as I want. Help on pnorm doesn't have df setting.The only choice are:"mean, sd, lower.tail, log.p",but no df. For instance: sample size=6 df=6-1=5 t value=9.143 I wanna to the corresponding p value by using function "pnorm". How can I do it? Thanks a lot
2007 Apr 02
1
?Bug: '&&' and '&' give different results?
"&&" seems to behave strangely and gives different results from "&" e.g. in a data frame selection (regardless whether terms are bracketed)? ===========Script======================= test=data.frame(gender=c("F","M","M","F","F"),side=c("R","L","R","L","R")) test
2007 Oct 24
3
multiply for vector in R
Dear All, Is there a conmand to calculate the multiplication of the elements in a vector? For example: a=c(1,2,3,4) I want to get 1*2*3*4=24. Because the dimension of the vector is high, I want to know there is a command for this task in R? Thank you so much! Kang __________________________________________________ [[alternative HTML version deleted]]
2007 Apr 23
1
Extracing "Interval of Time" in seconds in R
Dear List, I want to let R calculate the time (run-time) it requires to run a self-written simulation function. I tried as follows: it enables me to see the starting and finishing time points. ############################# "sim.result" <- function(nsim, ...){ Starting <- date() ... # calculations # final.result <- ... # Output for display # cat("# of Iterations used
2007 Jun 18
2
Calculating Percentile in R
Hi all, I have a problem on how R calculates Percentiles : Suppose I have following data set: > data1 [1] -16648185 -14463457 -14449400 -13905309 -13443436 -13234755 -12956282 -11660896 [9] -10061040 -9805005 -9789583 -9754642 -9562164 -9391709 -9212182 -9151073 [17] -9092732 -9068214 -8978151 -8943912 -8761890 -8632106 -8541580 -8501249 [25] -8234466 -8219015
2005 Oct 11
3
Is this correct?
Dear userR, With the following results, are they correct or acceptable? > x <- c(1.4, 1.2, 2.8) > sum(x) [1] 5.4 > sum(x) == 5.4 [1] FALSE > (1.4 + 1.2 + 2.8) - 5.4 [1] -8.881784e-16 > (1.4 + 1.2) - 2.6 [1] -4.440892e-16 > 2.6 - 1.5 - 1.1 [1] 0 > version _ platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 2 minor
2005 Oct 04
3
Problem reading in external data and assigning data.frames within R
Hey there, I apologize if this is an irritatingly simple question ... I'm a new user. I can't understand why R flips the sign of all data values when reading in external text files (tab delimited or csv) with the read.delim or read.csv functions. The signs of data values also seem to be flipped after assigning a new data.frame from within R (xnew <-- edit(data.frame()). What am