Re: [R] how to connect S-Plus to Matlab?

2008-02-06 Thread Gavin Simpson
hits=-2.6 tests=BAYES_00 X-USF-Spam-Flag: NO On Wed, 2008-02-06 at 22:57 -0800, Michael wrote: > Hi all, > > I am playing around with the S-Plus ... and I am wondering how to > connect it back and forth with Matlab? > > For example, how do I call S-Plus from within Matlab and how do I call > Mat

[R] where do I find stochastic volatilities models in R or Matlab?

2008-02-06 Thread Michael
Hi all, Does anybody have the source code of stochastic volatility models in R or Matlab, for example, the Bayesian based or the simulation based SV estimations as described by Prof Eric Zivot in the following discussion? https://stat.ethz.ch/pipermail/r-sig-finance/2005q4/000501.html --

[R] how to connect S-Plus to Matlab?

2008-02-06 Thread Michael
Hi all, I am playing around with the S-Plus ... and I am wondering how to connect it back and forth with Matlab? For example, how do I call S-Plus from within Matlab and how do I call Matlab from within S-Plus? How do I transfer data back and forth? Thanks a lot ___

[R] How to split a factor (unique identifier) into several others?

2008-02-06 Thread Tribo Laboy
Hello, I have a data frame with a factor column, which uniquely identifies the observations in the data frame and it looks like this: sample1_condition1_place1 sample2_condition1_place1 sample3_condition1_place1 . . . sample3_condition3_place3 I want to turn it into three separate factor columns

Re: [R] How to search for packages - wrap up!

2008-02-06 Thread Spencer Graves
What about doing more to promote the R Wiki? Someone complained to me that the R Wiki is not very useful. However, I think with the right encouragement, it could grow like the regular Wiki, which now has over 9 million entries in over 250 languages. I think the R Wiki is ideal fo

Re: [R] Res: gc() and memory efficiency

2008-02-06 Thread Henrik Bengtsson
Open suggestion/question: If you in each step of an K-step iteration load/allocate a large object, each time of a different size, followed by smaller memory allocations (due to your analysis), you might be better of if you could do the iteration such that the largest object is in the first iterati

Re: [R] Maximum number of variables allowed in a multiple linearregression model

2008-02-06 Thread Douglas Bates
On Feb 6, 2008 11:28 AM, Tony Plate <[EMAIL PROTECTED]> wrote: > Bert Gunter wrote: > > I strongly suggest you collaborate with a local statistician. I can think of > > no circumstance where multiple regression on "hundreds of thousands of > > variables" is anything more than a fancy random number

[R] Res: gc() and memory efficiency

2008-02-06 Thread Milton Cezar Ribeiro
Dear Harold, I had the same problem some times ago. I noticed that after I run a set commands (cleaning all non-usefull variables) for 5 times, the system broken-down. I solved it building several scritpsNN.R and call them in a .BAT DOS file. It worked so fine, almost in my case, and the comput

Re: [R] matrix loop

2008-02-06 Thread jim holtman
What exactly are you intending the loop to do? Why do you have the 'as.matrix' in the middle of the loop? Where was 'y' defined? Does this do what you want? > outer(1:5, 1:10, "+") [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [1,]23456789 1011 [

Re: [R] time series plot

2008-02-06 Thread jim holtman
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. > It all depends on how you constructed the x-axis. You can try abline(v=2008.25) On Feb 6, 2008 6:41 PM, Ana Quitério <[EMAIL PROTECTED]> wrote: > De

[R] matrix loop

2008-02-06 Thread mohamed nur anisah
Dear list, I'm trying to make a loop of a (5x10) matrix and below are my codes. Could anybody help me figure out why my loop is not working. Thanks in advance!! m<-1:5 n<-1:10 for(i in 1:length(m)) { for(j in 1:length(n)) { y[i,j]=sum(i,j) y<-as.matrix(y[i,j]) } } cheer

[R] time series plot

2008-02-06 Thread Ana Quit�rio
Dear all. I want to add a vertical line in my time series series plot. If i had an anual data I do: plot(data,v="2008"), but if I want to add a vertical line in fisrt quarter of 2008, how can i do? Thanks a lot Ana -- __ R-help@r-project.org mailing l

Re: [R] how to plot an user-defined function

2008-02-06 Thread John Smith
Thank all of you for your helps. They are very helpful. But I have a further question. Suppose I have the following mixed effect model thetaMixed <- function(tau, i) { w <- 1 / (s^2 + tau^2) mu <- sum(theta * w) / sum(w) b <- s[i]^2 / (s[i]^2 + tau^2) theta[i]*(1-b) + mu*b) }

Re: [R] "Inverting" a list

2008-02-06 Thread Richard M. Heiberger
A more primitive method is about 5 times faster than Gabor's. L <- list( a = c("1", "2", "3"), b = c("1"), d = c("2", "4") ) system.time( for (i in 1:100) {t1 <- unlist(L) names(t1) <- rep(names(L), lapply(L, length)) tapply(names(t1), t1, c) } ) system.time(

Re: [R] "Inverting" a list

2008-02-06 Thread Gabor Grothendieck
This isn't a single command but its pretty short: unstack(stack(L)[2:1]) On Feb 6, 2008 5:51 PM, hadley wickham <[EMAIL PROTECTED]> wrote: > Is there a built in function to invert a list? i.e. to go from > > list( > a = c("1", "2", "3"), > b = c("1"), > d = c("2", "4") > ) > > to > > list( >

[R] "Inverting" a list

2008-02-06 Thread hadley wickham
Is there a built in function to invert a list? i.e. to go from list( a = c("1", "2", "3"), b = c("1"), d = c("2", "4") ) to list( "1" = c("a", "b"), "2" = c("a", "d"), "3" = "a", "4" = "2" ) Hadley -- http://had.co.nz/ __ R-help@r-projec

Re: [R] Sampling

2008-02-06 Thread Tim Hesterberg
>Tim Hesterberg wrote: >>I'll raise a related issue - sampling with unequal probabilities, >>without replacement. R does the wrong thing, in my opinion: >>... >Peter Dalgaard wrote: >But is that the right thing? ... (See bottom for more of the previous messages.) First, consider the common case,

Re: [R] filling data into objects

2008-02-06 Thread Nair, Murlidharan T
Oh yes, that's what I was looking for. I can then do a Class1<-rbind(Informative.data, Uninformative.data) Thanks ../Murli -Original Message- From: Henrique Dallazuanna [mailto:[EMAIL PROTECTED] Sent: Wednesday, February 06, 2008 3:06 PM To: Nair, Murlidharan T Cc: [EMAIL PROTECTED] Subj

[R] lme predicted value confidence intervals

2008-02-06 Thread Colin
Dear R users, Does anyone know of a way to obtain approximate 95% confidence intervals for predicted values for factor levels of fixed effects from lme? Our goal is to use these intervals to interpret patterns across our predicted values for certain factor levels. Our mixed model has the foll

Re: [R] filling data into objects

2008-02-06 Thread Henrique Dallazuanna
Perhaps: for(i in 1:100)assign(sprintf("Informative.data.class%s", i), rnorm(100, 0.25,1)) for(i in 1:100)assign(sprintf("Uninformative.data.class%s", i), rnorm(900)) Or working with a list: Informative <- replicate(100, rnorm(100, 0.25,1)) Uninformative <- replicate(100, rnorm(900)) On 06/02/2

Re: [R] box.Cox.powers() warning

2008-02-06 Thread John Fox
Dear Clara, The warning is nothing to worry about. If start values aren't specified, box.cox.powers() uses optimize() to find start values for each transformation parameter (in this case, there's only one) prior to using optim() to maximize the (possibly multivariate) likelihood. In the course of

Re: [R] Discriminant function analysis

2008-02-06 Thread Tyler Smith
On 2008-02-06, Birgit Lemcke <[EMAIL PROTECTED]> wrote: > > I am using R 2.6.1 on a PowerBook G4. > I would like to perform a discriminant function analysis. I found lda > in MASS but as far as I understood, is it only working with > explanatory variables of the class factor. I think you are

[R] filling data into objects

2008-02-06 Thread Nair, Murlidharan T
I am trying to generate artificial data for feature selection. Basically trying to generate a total of 1000 features with 100 that are informative and rest are uninformative. Informative.data.class1<-rnorm(100,0.25,1) Uninformative.data.class1<-rnorm(900,0,1) Informative.data.class2<-rnorm(100,

Re: [R] Sampling

2008-02-06 Thread Peter Dalgaard
Tim Hesterberg wrote: >> values <- sapply(1:1000, function(i) sample(1:3, size=2, prob = c(.5, .25, >> .25))) >> table(values) >> > values > 1 2 3 > 834 574 592 > > The selection probabilities are not proportional to the specified > probabilities. > > In contrast, in S-PLUS: > >>

Re: [R] axis help

2008-02-06 Thread Martin Elff
On Wednesday 06 February 2008 (15:14:28), [EMAIL PROTECTED] wrote: > Hi, i'm having trouble with my x and y axis. The commands i'm using are >below. The problem is that the y axis starts at coordinate 0,1 and the x >axis starts at coordinate 0,0. As far as I know the y axis can't start

[R] RSF

2008-02-06 Thread Luca Brugnaro
how can i compare a cox model and a rsf? someone can tell me how to do that in R? Thanks [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting

Re: [R] inserting text lines in a dat frame

2008-02-06 Thread jim holtman
This should do it for you: x <- read.table(textConnection("V1V2 V3 1 chr1 11255 55 2 chr1 11320 29 3 chr1 11400 45 4 chr2 21680 35 5 chr2 21750 84 6 chr2 21820 29 7 chr2 31890 46 8 chr3 32100 29 9 chr3 52380 29 10 chr3 66450 46" ), header=TRUE) outfile <- '/tempxx.txt' cat("browser positio

Re: [R] counting row repetitions without loop

2008-02-06 Thread Douglas Bates
On Feb 6, 2008 8:08 AM, Waterman, DG (David) <[EMAIL PROTECTED]> wrote: > Hi, > I have a data frame consisting of coordinates on a 10*10 grid, i.e. > > example > x y > 1 4 5 > 2 6 7 > 3 6 6 > 4 7 5 > 5 5 7 > 6 6 7 > 7 4 5 > 8 6 7 > 9 7 6 > 10 5 6 > What I would

Re: [R] Sampling

2008-02-06 Thread Tim Hesterberg
> I want to generate different samples using the >followindg code: > >g<-sample(LETTERS[1:2], 24, replace=T) > > How can I specify that I need 12 "A"s and 12 "B"s? I introduced the concept of "sampling with minimal replacement" into the S-PLUS version of sample to handle things like this:

Re: [R] help with oop in R - class structure and syntex

2008-02-06 Thread Gabor Grothendieck
zoo has a NAMESPACE which restricts access to the internals of the package except for explicitly exported items. zoo exports plot.zoo as an S3 method so that the plot generic can find it. It is also possible to simply export a function not specifically as an S3 method in which case it will be visi

Re: [R] help with oop in R - class structure and syntex

2008-02-06 Thread tom soyer
Gabor, maybe I am not understanding it right. I was thinking for example something like how a call to plot actually calls plot.zoo when zoo is loaded. And a specific call to plot.zoo would not work, etc. One would think that plot and plot.zoo are separate and that one could call the parent as well

[R] box.Cox.powers() warning

2008-02-06 Thread cmhcordei
Dear Rlist, Using an example in box.cox.powers() help, I have the following warning message. example: library(car) >attach(Prestige) > box.cox.powers(income) Box-Cox Transformation to Normality Est.Power Std.Err. Wald(Power=0) Wald(Power=1) 0.1793 0.11081.6179 -7.4062 L.R

Re: [R] inserting text lines in a dat frame

2008-02-06 Thread joseph
thanks Richie. It woks perfectly. - Original Message From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> To: joseph <[EMAIL PROTECTED]> Cc: r-help@r-project.org; [EMAIL PROTECTED] Sent: Wednesday, February 6, 2008 2:22:16 AM Subject: Re: [R] inserting text lines in a dat frame > I am try

Re: [R] help with oop in R - class structure and syntex

2008-02-06 Thread Gabor Grothendieck
If you believe that certain changes intended only to affect the local environment nevertheless affect the global environment please give a code example. On Feb 6, 2008 12:11 PM, tom soyer <[EMAIL PROTECTED]> wrote: > Thanks Hardley. I see what you mean. You are right, I am not an expert in > oop A

[R] kruskal's MONANOVA algorithm

2008-02-06 Thread Jaime Brugueras
I am trying to obtain the Kruskal (1964) secondary least-squares monotonic transformation of a rank variable given 4 categorical variables in order to obtain optimal transformation for regression. The academic problem assigned is to compare R, SPSS (Conjoint Analysis), and SAS' proc transreg in spe

Re: [R] inserting text lines in a dat frame

2008-02-06 Thread joseph
Hi Jim yes, this exactly want I want. However, I need one more step to get rid of the first column so that the final file looks like this: browser position chr1:1-1 browser hide all track type=wiggle_0 name=sample description=chr1_sample visibility=full variableStep chrom=chr1 span=

Re: [R] ci.pd() (Epi) and Newcombe method

2008-02-06 Thread Ted Harding
On 06-Feb-08 17:09:59, Peter Dalgaard wrote: > (Ted Harding) wrote: >> Greetings! >> >> I suspect that there is an error in the code for the >> function ci.pd() in the Epi package. >> > Any particular reason not to include the maintainer among the > recipients?? Oversight, and haste! Thank you

Re: [R] Maximum number of variables allowed in a multiple linearregression model

2008-02-06 Thread Tony Plate
Bert Gunter wrote: > I strongly suggest you collaborate with a local statistician. I can think of > no circumstance where multiple regression on "hundreds of thousands of > variables" is anything more than a fancy random number generator. That sounds like a challenge! What is the largest regress

Re: [R] help with oop in R - class structure and syntex

2008-02-06 Thread tom soyer
Thanks Hardley. I see what you mean. You are right, I am not an expert in oop AND I don't really know how R oo works, so certainly I shouldn't be making any sweeping statement. I was just thinking about the issue of local vs. global, i.e. changes intended for the local environment shouldn't affect

Re: [R] ci.pd() (Epi) and Newcombe method

2008-02-06 Thread Peter Dalgaard
(Ted Harding) wrote: > Greetings! > > I suspect that there is an error in the code for the > function ci.pd() in the Epi package. > Any particular reason not to include the maintainer among the recipients?? Not sure whether Bendix is subscribed. -p > This function is for computing confide

[R] adding original axis for x and y to a plot

2008-02-06 Thread Lassana TOURE
Hi. I have a AFTD plot. I want to add a original axis for x and y. I did "help(plot)". But I did not see an option for that. I need help. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/

[R] ci.pd() (Epi) and Newcombe method

2008-02-06 Thread Ted Harding
Greetings! I suspect that there is an error in the code for the function ci.pd() in the Epi package. This function is for computing confidence intervals for a difference of proportions between two independent groups of 0/1 responses, and implements the Newcombe ("Nc") method and the Agrasti-Caffo

Re: [R] help with oop in R - class structure and syntex

2008-02-06 Thread hadley wickham
On Feb 6, 2008 10:13 AM, tom soyer <[EMAIL PROTECTED]> wrote: > Thanks Gabor. I guess true oo encapsulation is not possible in R. Before making such a claim, I would encourage you to actually learn what oo means. A couple of good readings are: Structure and Interpretation of Computer Programs. h

Re: [R] Multivariate Maximum Likelihood Estimation

2008-02-06 Thread Konrad BLOCHER
Thanks, I managed to run gls, but my problem isn't solved :) 1. I do not know the autocorrelation between errors and its estimates change for different methods. Therefore I wasn't including it in the corAR1 function. 2. GLS yields counteraintuitive results with one of the variables (its sign) an

Re: [R] 3d scatterplot with error bars

2008-02-06 Thread hadley wickham
> Yes, type > > vignette("s3d", package="scatterplot3d") > > and see page 22. which of course won't work unless you have scatterplot3d installed, but I wonder if vignette() could be modified to try to find the vignette on the web if the package isn't installed. It would make it a little easy to r

Re: [R] 3d scatterplot with error bars

2008-02-06 Thread hadley wickham
> Is there anyway to produce a 3D scatterplot with error bars in the x,y,z > directions? I have searched around and know of scatterplot3d but did > not see any way to put error bars on the points. Any ideas? It may be possible, but do you think that's the best solution for your problem? Given t

Re: [R] Inconsistent lattice scales$x$at, label behaviour for POSIXct

2008-02-06 Thread Deepayan Sarkar
On 2/6/08, Alex Brown <[EMAIL PROTECTED]> wrote: > Here's a related problem that works for numeric but not for POSIXct > > I am seeing it where a panel has no at labels, but others do. > > This simple example only has one panel with no at labels. > > > baseval = 0; > > xyplot(1:10 ~ (baseval + c(

Re: [R] 3d scatterplot with error bars

2008-02-06 Thread Uwe Ligges
Christopher Chizinski wrote: > Is there anyway to produce a 3D scatterplot with error bars in the x,y,z > directions? I have searched around and know of scatterplot3d but did > not see any way to put error bars on the points. Any ideas? Yes, type vignette("s3d", package="scatterplot3d") a

Re: [R] wilderSum

2008-02-06 Thread Josh Ulrich
Shubha, The calculation is: wilderSum[1] <- x[1] for(i in 2:NROW(x)) { wilderSum[i] <- x[i] + wilderSum[i-1] * (n-1)/n } Where 'x' is the price series and 'n' is the number of periods. You can see the calculations for all functions in TTR's source code, which is on CRAN and r-forge (http://r-

Re: [R] unload & reload a (new version of a) package

2008-02-06 Thread Harte, Thomas P
i returned to this problem and found that the solution was a disarmingly straight-forward oversight on my part: 'detach' requires the version number of the library to be specified! thus, if you install packages '--with-package-versions' switched on, and if you load the version of choice in an R

Re: [R] Multivariate Maximum Likelihood Estimation

2008-02-06 Thread ONKELINX, Thierry
It seems like you didn't look at the examples in the helpfiles. See ?gls and ?corAR1. ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest Cel biometrie, methodologie en

Re: [R] Levelplot of percentages always using 0 to 100 in the color scheme

2008-02-06 Thread Deepayan Sarkar
On 2/5/08, Kelvin <[EMAIL PROTECTED]> wrote: > I am trying to create levelplot's of cpu usage for systems. > print(levelplot(util.mean ~ x.hour * x.day, colorkey=T, cut=20, > scales=list(x=list(at=seq(0,96,length=25), > labels=ifelse(seq(0,24) %% 4 == 0, seq(0,24), ''))), # add > tick

[R] Discriminant function analysis

2008-02-06 Thread Birgit Lemcke
Hello R-Cracks, I am using R 2.6.1 on a PowerBook G4. I would like to perform a discriminant function analysis. I found lda in MASS but as far as I understood, is it only working with explanatory variables of the class factor. My dataset contains variables of the classes factor and numeric.

Re: [R] help with oop in R - class structure and syntex

2008-02-06 Thread tom soyer
Thanks Gabor. I guess true oo encapsulation is not possible in R. It seems that there is an IDE for S+ in Eclipse... On 2/6/08, Gabor Grothendieck <[EMAIL PROTECTED]> wrote: > > On Feb 6, 2008 9:45 AM, tom soyer <[EMAIL PROTECTED]> wrote: > > Thanks Gabor for illustrating the basics oop in R us

Re: [R] advice requested re: building "good" system (R, SQL db) for handling large datasets

2008-02-06 Thread Jeffrey Horner
Richard Pearson wrote on 02/06/2008 06:25 AM: > Hi Thomas [...] > With databases, one issue that might be relevant is whether you want to > store data in tables (e.g. one table to store one data.frame) that can > subsequently be manipulated in the DB, or to store R objects as R > objects (e.g. a

Re: [R] help with oop in R - class structure and syntex

2008-02-06 Thread Jeffrey J. Hallman
"tom soyer" <[EMAIL PROTECTED]> writes: > (1) how do I encapsulate the generics? i.e., if a class has 100 methods, > then does it mean 100 generics would be dumped in the global environment? > Or, is it possible to define a local environment and restrict the generics > from one class to a particula

[R] Running R non-interactively

2008-02-06 Thread Gang Chen
Normally I can run an R script in batch mode with a command like this R CMD BATCH MyScript.R MyOutput & However I prefer to write another script containing something like R --no-restore --save --no-readline < $1 >$2 so that I could run the original script simply on the prompt as MyScript.R MyO

[R] Regression with time-dependent coefficients

2008-02-06 Thread achronal
Hi, I was wondering if someone might be willing to indulge a question about R and the estimation of a linear regression with time-varying coefficients. The model I am trying to estimate is of the form: y(t) = beta(t) * x(t) + v(t) beta(t) = gamma * beta(t-1) + w(t) where gamma is a constant, v(

Re: [R] advice requested re: building "good" system (R, SQL db) for handling large datasets

2008-02-06 Thread Dirk Eddelbuettel
On Wed, Feb 06, 2008 at 02:34:52PM +0200, Rainer M Krug wrote: > R objects in blobs - I never thought about that. Could you elaborate on how > to do something like that (I am using RMySQL)? Look at help(serialize) -- any R object can be turned into a suitable representation, either binary (more ef

Re: [R] Multivariate Maximum Likelihood Estimation

2008-02-06 Thread Konrad BLOCHER
OK I got gls running but this is the error message that I got: > gls_results <- gls(LnWRPK ~ LnWGDP+LnWYIELD,correlation = corAR1) Error in switch(mode(x), "NULL" = structure(NULL, class = "formula"), : invalid formula Google didn't give any results unfortunately. Help! :) Thanks, KB > Ha

[R] kinship package: drawing pedigree error

2008-02-06 Thread Iris Kolder
Hi Im using the kinship package to draw a pedigree. On my data set this works fine but when i add indivudals to the pedigree i keep getting an error i hope someone can help me! This is the code im using: Data<-read.table("Tree.txt", header=T, sep=",") attach(Data) ped<-pedigree(id, dadid, momi

Re: [R] Inconsistent lattice scales$x$at, label behaviour for POSIXct

2008-02-06 Thread Alex Brown
Here's a related problem that works for numeric but not for POSIXct I am seeing it where a panel has no at labels, but others do. This simple example only has one panel with no at labels. > baseval = 0; > xyplot(1:10 ~ (baseval + c(1:10)), scales=list(x=list + (at=list(c()), labels=list(c()),

Re: [R] help with oop in R - class structure and syntex

2008-02-06 Thread Gabor Grothendieck
On Feb 6, 2008 9:45 AM, tom soyer <[EMAIL PROTECTED]> wrote: > Thanks Gabor for illustrating the basics oop in R using S3. Maybe I didn't > have the right documents, but you example taught me more about oop in R than > everything else I read combined! Thanks for the tip on R.oo, I plan to check > i

[R] 3d scatterplot with error bars

2008-02-06 Thread Christopher Chizinski
Is there anyway to produce a 3D scatterplot with error bars in the x,y,z directions? I have searched around and know of scatterplot3d but did not see any way to put error bars on the points. Any ideas? __ R-help@r-project.org mailing list https://sta

Re: [R] GLM coefficients

2008-02-06 Thread Henrique Dallazuanna
See this example: coef(summary(glm(Postwt ~ Prewt + Treat + offset(Prewt),family=gaussian, data=anorexia))) Is this you want? On 06/02/2008, Munyandorero, Joseph <[EMAIL PROTECTED]> wrote: > Dear all, > > After running a glm, I use the summary ( ) function to extract its > coefficients and rela

Re: [R] GLM coefficients

2008-02-06 Thread Ioannis Kosmidis
If I understand correctly.. using the example in ?glm > utils::data(anorexia, package="MASS") > anorex.1 <- glm(Postwt ~ Prewt + Treat + offset(Prewt), family = gaussian, data = anorexia) > summ <- summary(anorex.1) Then check > names(summ) for the available objects. F

Re: [R] scatterplot3d + box lines

2008-02-06 Thread Duncan Murdoch
On 2/6/2008 10:07 AM, Pedro Mardones wrote: > Dear all; > I've been trying to change the type of line used to draw the box > around the 3d scatterplot (package scatterplot3d) from lty=1 to lty=2 > without sucess. I would appreciate suggestions of how to do it. Use lty.axis=2. (This is mentioned o

[R] scatterplot3d + box lines

2008-02-06 Thread Pedro Mardones
Dear all; I've been trying to change the type of line used to draw the box around the 3d scatterplot (package scatterplot3d) from lty=1 to lty=2 without sucess. I would appreciate suggestions of how to do it. Thanks PM __ R-help@r-project.org mailing lis

[R] GLM coefficients

2008-02-06 Thread Munyandorero, Joseph
Dear all, After running a glm, I use the summary ( ) function to extract its coefficients and related statistics for further use. Unfortunately, the screen only displays a small (last) part of the results. I tried to overcome the problem by creating/saving an object "coef" for coefficients of the

Re: [R] counting row repetitions without loop

2008-02-06 Thread Doran, Harold
Sorry, word wrap made that incomprehensible, I think x y 4 5 6 7 6 6 7 5 5 7 6 7 4 5 6 7 7 6 5 6 dat <- read.table('clipboard', header=TRUE) dat$patt <- paste(dat$x,dat$y, sep='') mm <- as.data.frame(with(dat, table(patt))) dat <- merge(dat, mm, by='patt') mat <- matrix(0, ncol=10,

Re: [R] counting row repetitions without loop

2008-02-06 Thread Doran, Harold
I think this does what you want, but there may be a more efficient way x y 4 5 6 7 6 6 7 5 5 7 6 7 4 5 6 7 7 6 5 6 dat <- read.table('clipboard', header=TRUE) # copy sample data above dat$patt <- paste(dat$x,dat$y, sep='') mm <- as.data.frame(with(dat, table(patt))) dat <- merge(dat, mm

Re: [R] counting row repetitions without loop

2008-02-06 Thread James Foadi
On Wednesday 06 February 2008 14:08, Waterman, DG (David) wrote: > Hi, > > I have a data frame consisting of coordinates on a 10*10 grid, i.e. > > > example > > x y > 1 4 5 > 2 6 7 > 3 6 6 > 4 7 5 > 5 5 7 > 6 6 7 > 7 4 5 > 8 6 7 > 9 7 6 > 10 5 6 > > What I would li

Re: [R] Incomplete ouput with sink and split=TRUE

2008-02-06 Thread jiho
On 2008-February-06 , at 14:45 , Duncan Murdoch wrote: > On 2/5/2008 11:12 AM, jiho wrote: >> Dear List, >> I am trying to get R's terminal output to a file and to the >> terminal at the same time, so that I can walk through some tests >> and keep a log concurrently. The function 'sink' with

Re: [R] help with oop in R - class structure and syntex

2008-02-06 Thread tom soyer
Thanks Gabor for illustrating the basics oop in R using S3. Maybe I didn't have the right documents, but you example taught me more about oop in R than everything else I read combined! Thanks for the tip on R.oo, I plan to check it out later. I have a few followup questions... (1) how do I encaps

Re: [R] R-Commander - pie charts menu blinded out

2008-02-06 Thread Peter Dalgaard
John Fox wrote: > Dear Peter and Iksmax, > > To elaborate slightly, the Rcmdr tries to figure out which menu items are > appropriate in a given context, and as Peter says, requires that you have at > least one factor in the active dataset before activating the pie chart menu > item; only factors wi

[R] wilderSum

2008-02-06 Thread Shubha Vishwanath Karanth
Hi, Can somebody tell me the formula for "?wilderSum" in TTR package? I mean how are these calculated? BR, Shubha Shubha Karanth | Amba Research Ph +91 80 3980 8031 | Mob +91 94 4886 4510 Bangalore * Colombo * London * New York * San José * Singapore * www.ambaresearch.com This e-

Re: [R] How to generate table output of t-test

2008-02-06 Thread John Kane
There may be an easier way but you can extract the desired values from the list values in t str(t) to see the elements in t. test <- matrix(c(1, 1,2,2), 2,2) tt <- apply(test, 1, t.test) ttable <- function(tlist) { tframe <- data.frame(NULL) for(i in 1:length(tlist)){ t.value <- tlist[[i]]

[R] axis help

2008-02-06 Thread [EMAIL PROTECTED]
Hi, i'm having trouble with my x and y axis. The commands i'm using are below. The problem is that the y axis starts at coordinate 0,1 and the x axis starts at coordinate 0,0. As far as I know the y axis can't start at 0 (because it's log scaled) ,so I would like to position the x a

[R] counting row repetitions without loop

2008-02-06 Thread Waterman, DG (David)
Hi, I have a data frame consisting of coordinates on a 10*10 grid, i.e. > example x y 1 4 5 2 6 7 3 6 6 4 7 5 5 5 7 6 6 7 7 4 5 8 6 7 9 7 6 10 5 6 What I would like to do is return an 10*10 matrix consisting of counts at each position, so in the above example

Re: [R] Incomplete ouput with sink and split=TRUE

2008-02-06 Thread Duncan Murdoch
On 2/5/2008 11:12 AM, jiho wrote: > Dear List, > > I am trying to get R's terminal output to a file and to the terminal > at the same time, so that I can walk through some tests and keep a log > concurrently. The function 'sink' with the option split=TRUE seems to > do just that. It works fi

Re: [R] Mixed models quantile regression

2008-02-06 Thread roger koenker
There is no generally agreed upon notion of random effects for quantile regression applications. Insofar as one is willing to accept the idea that random effects are just "shrunken fixed effects" one can consider similar schemes in the QR context; one such is described in “Quantile Regressio

Re: [R] How to search for packages - wrap up!

2008-02-06 Thread hadley wickham
> A new user will come to the R homepage, go to CRAN via the link under > download and from there see Packages and then be swamped by the huge > number available. Having Task Views as a link on the R homepage would > make these more visible. I would think that a new user would see the download hea

Re: [R] How to form a simple R package

2008-02-06 Thread Doran, Harold
Well, not exactly. package.skeleton() is very useful as a first step, but it does *not* create a package entirely. It turns out that in Windows, creating a package is very simple once you have downloaded all programs needed (e.g., perl) and you have your path configured exaclty, (exactly, exactly)

Re: [R] How to search for packages - wrap up!

2008-02-06 Thread Neil Shephard
I'm not sure that this would make any difference to someone considering using R. Would they know what CRAN stands for? Probably not unless they've used CPAN or equivalent in the past. Would they know what a 'Task View' is? Again probably not as its not patently obvious what it is, it doesn't "cli

Re: [R] advice requested re: building "good" system (R, SQL db) for handling large datasets

2008-02-06 Thread Rainer M Krug
With databases, one issue that might be relevant is whether you want to > store data in tables (e.g. one table to store one data.frame) that can > subsequently be manipulated in the DB, or to store R objects as R > objects (e.g. as BLOBs). My situation is likely to be the later case, > and one of m

Re: [R] advice requested re: building "good" system (R, SQL db) for handling large datasets

2008-02-06 Thread Richard Pearson
Hi Thomas I'm certainly no expert but thought I'd reply as I'm likely to be in a similar position soon. With regards versions of R I think you should always have the latest release version. This will mean upgrading at least every 6 months, but this shouldn't be too much of a problem. With OSs

Re: [R] Multivariate Maximum Likelihood Estimation

2008-02-06 Thread Gavin Simpson
hits=-2.6 tests=BAYES_00 X-USF-Spam-Flag: NO On Wed, 2008-02-06 at 12:45 +0100, Konrad BLOCHER wrote: > I get this message: > > Error: could not find function "gls" (and also) > Error: could not find function "lm.gls" > > Which package is that in? RSiteSearch("gls", restrict = "functions") Tel

Re: [R] Effect size of comparison of two levels of a factor in multiple linear regression

2008-02-06 Thread Christoph Mathys
On Feb 4, 08:49 AM, Chuck Cleland wrote: > On 2/3/2008 10:09 AM, Christoph Mathys wrote: >> Dear R users, >> I have a linear model of the kind >> outcome ~ treatment + covariate >> where 'treatment' is a factor with three levels ("0", "1", and "2"), >> and the covariate is continuous. Treatments "1

Re: [R] How to search for packages - wrap up!

2008-02-06 Thread Charilaos Skiadas
On Feb 6, 2008, at 6:23 AM, Neil Shephard wrote: > Charilaos Skiadas-3 wrote: >> >> On Feb 5, 2008, at 10:37 AM, Monica Pisica wrote: >> >> But perhaps I am missing something very obvious? > > I thought the task views were located where they are (linked from > the page > that lists packages) as

Re: [R] Multivariate Maximum Likelihood Estimation

2008-02-06 Thread Konrad BLOCHER
I get this message: Error: could not find function "gls" (and also) Error: could not find function "lm.gls" Which package is that in? Thanks, KB > Have you tried gls()? > > > > > ir. Thierry Onkelinx > Instituut voor

Re: [R] How to search for packages - wrap up!

2008-02-06 Thread Gavin Simpson
hits=-2.6 tests=BAYES_00 X-USF-Spam-Flag: NO On Wed, 2008-02-06 at 03:23 -0800, Neil Shephard wrote: > > > Charilaos Skiadas-3 wrote: > > > > On Feb 5, 2008, at 10:37 AM, Monica Pisica wrote: > > > > But perhaps I am missing something very obvious? > > > > > > I thought the task views were

Re: [R] Incomplete ouput with sink and split=TRUE

2008-02-06 Thread jiho
On 2008-February-06 , at 11:25 , Alex Brown wrote: > you could use the unix function 'script' before invoking the R > interpreter. Thanks for the suggestion. It would work for some cases and I did not know about this utility. But most of the time I just put a list of commands in a .R file

Re: [R] How to search for packages - wrap up!

2008-02-06 Thread Neil Shephard
Charilaos Skiadas-3 wrote: > > On Feb 5, 2008, at 10:37 AM, Monica Pisica wrote: > > But perhaps I am missing something very obvious? > > I thought the task views were located where they are (linked from the page that lists packages) as they summarise the available packages for the given to

[R] Multivariate Maximum Likelihood Estimation

2008-02-06 Thread Konrad BLOCHER
Hi, I am trying to perform Maximum Likelihood estimation of a Multivariate model (2 independent variables + intercept) with autocorrelated errors of 1st order (ar(1)). Does R have a function for that? I could only find an univariate option (ar.mle function) and when writing my own I find that it

Re: [R] Histogram/Bar plot graph

2008-02-06 Thread Senthil Kumar M
On Feb 6, 2008 2:35 AM, ONKELINX, Thierry <[EMAIL PROTECTED]> wrote: > You'll need to transform your dataset in a long format first. > > library(ggplot2) > n <- 5 > MyValues <- data.frame(Gene = factor(LETTERS[seq_len(n)]), ES = > rnorm(n), MEF = rnorm(n), Embrio = rnorm(n), EShyp = rnorm(n)) > MyV

Re: [R] inserting text lines in a dat frame

2008-02-06 Thread jim holtman
Try this and see if it is what you want: x <- read.table(textConnection(" V1V2 V3 1 chr1 11255 55 2 chr1 11320 29 3 chr1 11400 45 4 chr2 21680 35 5 chr2 21750 84 6 chr2 21820 29 7 chr2 31890 46 8 chr3 32100 29 9 chr3 52380 29 10 chr3 66450 46" ), header=TRUE) cat("browser position chr1:1-1

Re: [R] error message from apply()

2008-02-06 Thread jim holtman
Is 'thr' supposed to be the mean and sd of all the values in data2_1? If so, then thr <- mean(data2_1, na.rm=TRUE) + sd(data2_1,na.rm=TRUE) I am not exactly sure of "what is the problem that you are trying to solve". You just have to make sure that the object you are creating by precomputing has

Re: [R] Histogram/Bar plot graph

2008-02-06 Thread ONKELINX, Thierry
You'll need to transform your dataset in a long format first. library(ggplot2) n <- 5 MyValues <- data.frame(Gene = factor(LETTERS[seq_len(n)]), ES = rnorm(n), MEF = rnorm(n), Embrio = rnorm(n), EShyp = rnorm(n)) MyValuesMelt <- melt(MyValues, id.var = "Gene") ggplot(MyValuesMelt, aes(x = Gene, y

Re: [R] Incomplete ouput with sink and split=TRUE

2008-02-06 Thread Alex Brown
you could use the unix function 'script' before invoking the R interpreter. example session: $ script Script started, file is typescript [x86_64|[EMAIL PROTECTED]:~] $ R --quiet --vanilla > 1:10 [1] 1 2 3 4 5 6 7 8 9 10 > q() [x86_64|[EMAIL PROTECTED]:~] $ exit exit Script done, file

Re: [R] inserting text lines in a dat frame

2008-02-06 Thread Richard . Cotton
> I am trying to prepare a bed file to load as accustom track on the > UCSC genome browser. > I have a data frame that looks like the one below. > > x > V1V2 V3 > 1 chr1 11255 55 > 2 chr1 11320 29 > 3 chr1 11400 45 > 4 chr2 21680 35 > 5 chr2 21750 84 > 6 chr2 21820 29 > 7 chr2 31890 46 >

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