[R] numerical summaries across variables.

2009-08-31 Thread rajclinasia
Hi Every one, I have a dataframe "class" with "name", "sex", "age", "height", "Weight". if i caluclate summary statistics with the below code numSummary(class[,c("Height", "Weight")], groups=class$Name, statistics=c("mean", "sd", "quantiles"), quantiles=c(0, .25,.5,.75,1)) iam getting output l

Re: [R] Book on R programming

2009-08-31 Thread Norm Matloff
ANJAN PURKAYASTHA wrote: > Most books on R I come across describe running statistical procedures > in R. > Any suggestions on a good book that teaches *programming* in R? > Thanks, > Anjan I'm in the midst of writing such a book right now. It will be published early next year, by the whimsically

Re: [R] Probit function

2009-08-31 Thread Noah Silverman
It is my understanding that they ARE using a binary model. In fact, they even discuss "exploding" the model to count second and third place finishers as "winners". Otherwise, how can one calculate the probability of the positive class (winner)? If I'm mistaken and they are in fact predicting

Re: [R] Probit function

2009-08-31 Thread Achim Zeileis
On Mon, 31 Aug 2009, Noah Silverman wrote: Um. I did my research. Have been for years. I assume you're referring to Boltman and Chapmanm "A multinomial logit model for handicapping horse races" included in "Efficiency of racetrack betting markets". Page 155 references what they call a "

Re: [R] Probit function

2009-08-31 Thread Noah Silverman
Um. I did my research. Have been for years. I assume you're referring to Boltman and Chapmanm "A multinomial logit model for handicapping horse races" included in "Efficiency of racetrack betting markets". Page 155 references what they call a "multinomial model". From equation 14 in th

Re: [R] Probit function

2009-08-31 Thread Achim Zeileis
On Mon, 31 Aug 2009, Noah Silverman wrote: Thanks Achim, I discovered the Journal article just after posting this question. It did help explain more. My original inspiration for looking at this package came from a seminar "summary" given in 2002. Unfortunately , I can not find any actual

Re: [R] Probit function

2009-08-31 Thread Achim Zeileis
On Mon, 31 Aug 2009, Noah Silverman wrote: I get that. Still trying to figure out what the "multi" nominal labels they used were. That's why I passed on the reference to the seminar summary. So that I could do the research for you? Come on...the usual strategy applies: Look at the reference

Re: [R] ssanova help

2009-08-31 Thread David Winsemius
On Aug 31, 2009, at 7:19 PM, Josef Fruehwald wrote: Hi all, I'm using the ssanova function from the gss package to fit smoothing spline anovas, and am running into some difficulty. For my data, I have measurements at 2 milisecond intervals for every observation. Every observation does not

Re: [R] Probit function

2009-08-31 Thread Noah Silverman
I get that. Still trying to figure out what the "multi" nominal labels they used were. That's why I passed on the reference to the seminar summary. On 8/31/09 5:40 PM, Achim Zeileis wrote: > On Mon, 31 Aug 2009, Noah Silverman wrote: > >> Thanks Achim, >> >> I discovered the Journal article ju

Re: [R] Is this a bug?

2009-08-31 Thread David Winsemius
On Aug 31, 2009, at 8:31 PM, Worik R wrote: This programme for(T in 1:3){ for(j in 1:(5-1)){ for(k in (j+1):5){ for(l in (j+2):5){ print(paste("1 JKL:", j,k,l,sep=" ")) } } } } Prints out (among other things) [1] "1 JKL: 4 5 6" That is for(l in (j+2):5) sets l to 6 o

Re: [R] Is this a bug?

2009-08-31 Thread Achim Zeileis
Answer: No. On Tue, 1 Sep 2009, Worik R wrote: This programme for(T in 1:3){ for(j in 1:(5-1)){ for(k in (j+1):5){ for(l in (j+2):5){ print(paste("1 JKL:", j,k,l,sep=" ")) } } } } Prints out (among other things) [1] "1 JKL: 4 5 6" That is for(l in (j+2):5) sets l to

[R] Is this a bug?

2009-08-31 Thread Worik R
This programme for(T in 1:3){ for(j in 1:(5-1)){ for(k in (j+1):5){ for(l in (j+2):5){ print(paste("1 JKL:", j,k,l,sep=" ")) } } } } Prints out (among other things) [1] "1 JKL: 4 5 6" That is for(l in (j+2):5) sets l to 6 one more than the upper limit. cheers Wor

Re: [R] Probit function

2009-08-31 Thread Noah Silverman
Thanks Achim, I discovered the Journal article just after posting this question. It did help explain more. My original inspiration for looking at this package came from a seminar "summary" given in 2002. Unfortunately , I can not find any actual published paper or lecture notes that explain

Re: [R] Probit function

2009-08-31 Thread Achim Zeileis
On Mon, 31 Aug 2009, Noah Silverman wrote: Hello, I want to start testing using the MNP probit function in stead of the lrm function in my current experiment. I have one dependant label and two independent varaibles. The lrm is simple model <- lrm(label ~ val1 + val2) I tried the same thi

[R] Probit function

2009-08-31 Thread Noah Silverman
Hello, I want to start testing using the MNP probit function in stead of the lrm function in my current experiment. I have one dependant label and two independent varaibles. The lrm is simple model <- lrm(label ~ val1 + val2) I tried the same thing with the mnp function and got an error tha

[R] ssanova help

2009-08-31 Thread Josef Fruehwald
Hi all, I'm using the ssanova function from the gss package to fit smoothing spline anovas, and am running into some difficulty. For my data, I have measurements at 2 milisecond intervals for every observation. Every observation does not have the same duration, so I have scaled the times for each

Re: [R] extending an existing ts object

2009-08-31 Thread Gabor Grothendieck
Try this: > x <- ts(1:5); x Time Series: Start = 1 End = 5 Frequency = 1 [1] 1 2 3 4 5 > ts(c(x, 6), start = start(x), frequency = frequency(x)) Time Series: Start = 1 End = 6 Frequency = 1 [1] 1 2 3 4 5 6 On Mon, Aug 31, 2009 at 4:58 PM, Bunny, lautloscrew.com wrote: > Dear all, > > somehow i a

Re: [R] Book on R programming

2009-08-31 Thread Stavros Macrakis
I recommend you skim the Chambers book at Google Books or Amazon before buying it as a guide to programming in R. It is a fascinating book, but is more a discursive reflection on the history and philosophy of R than a practical guide to programming in R. It certainly explains the rationale for ma

[R] Manually set UCL and LCL

2009-08-31 Thread Moore, Phillip-P03087
In Control Charts, for an Individual graph, how can you manually set a UCL or LCL value? [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http

Re: [R] Offtopic, HT vs. HH in coin flips

2009-08-31 Thread David M Smith
For those interested, the original puzzle was detailed in a TED presentation by Peter Donnelly, which you can see at blog.revolution-computing.com here: http://bit.ly/2l0ZwS The original problem was: which coin-toss sequence do you expect to see first, HTH or HTT? Peter's explanation comes at about

[R] extending an existing ts object

2009-08-31 Thread Bunny, lautloscrew.com
Dear all, somehow i am still stuck trying to add data to some existing ts data. If some new periodical becomes available, i´d like to add these data to my existing ts object respectively my database. I just want to add some new data at the end of my ts. But how can I do this? Dont know why

Re: [R] Offtopic, HT vs. HH in coin flips

2009-08-31 Thread William Dunlap
It gets even more interesting when you ask about which of 2 triples of head/tail sequences appears first in an infinite sequence of heads and tails. Martin Gardiner wrote about this in the early 1970's Martin Gardner, "Mathematical Games: The Paradox of the Nontransitive Dice and the Elusive Pri

Re: [R] Calling C funtion from R help Needed

2009-08-31 Thread Steve Lianoglou
Hi, Perhaps you should try just passing in two integers to some toy C function just to make sure all the plumbing is correct before you play with strings/char arrays. In any case, some comments inline: On Aug 31, 2009, at 11:42 AM, naresh kumar wrote: Hello Forum, I'm calling C functio

Re: [R] Offtopic, HT vs. HH in coin flips

2009-08-31 Thread Erik Iverson
Part of my issue was that I was not answering my original question. "What is more likely to show up first, HT or HH?" The answer to that turns out to be "neither", or "identical chances". ht <- replicate(2500, paste(sample(c("H", "T"), 100, replace = TRUE),

Re: [R] Plot several graphs in the same window

2009-08-31 Thread Henrique Dallazuanna
Try this: par(mfrow = c(8,5), mar = c(1, 1, 1, 1)) replicate(40, plot(10)) On Mon, Aug 31, 2009 at 4:39 PM, swertie wrote: > > Hello, I would like to plot a large number of graphs (43) in a same window. > I > tried wit par(mfrow=c(8,5)), but when I give the code for the plots I > receive a erro

[R] GLM contrasting question

2009-08-31 Thread sodiumfish
I have run a glm with a final formula of : (dependent variable = parasite load, main effects are sex, month, length and weight, with sex:month and length:weight first order interactions). I am using the summary(mod) command to give me the contrasts, which I believe use the contr.treatment command

Re: [R] Computer Modern Fonts in R graphic

2009-08-31 Thread Friedericksen Hope
Dear Charlie, you are exactly right, I think the amount of rectangles creates the problem. 1. Was it the inclusion of one tikzDevice plot or a series of plots that caused TeX to run out of memory? It was a series of plots (also only one created with tikzdevice. Nevertheless, I created a st

[R] Calling C funtion from R help Needed

2009-08-31 Thread naresh kumar
Hello Forum,  I'm calling C function from R.It is a small sample trial  program. The C function will accept a string and a integer  and print them.  It is giving error segmentation fault. Below are the C function, Wrapper code ,R code and  R output.  Please help

[R] Plot several graphs in the same window

2009-08-31 Thread swertie
Hello, I would like to plot a large number of graphs (43) in a same window. I tried wit par(mfrow=c(8,5)), but when I give the code for the plots I receive a error message saying that the margins are to wide. Can someone help me? Is it possible to put so many graphs in a single window? Thank you -

Re: [R] Offtopic, HT vs. HH in coin flips

2009-08-31 Thread David Winsemius
Case starting with H: Pr= 0.5 H first H second Subcase 1a: Pr= 0.5 * 0.5 = 0.25 H first T second... leads to TH evenually Subcase 1b: Pr = 0.5 * 0.5 = 0.25 === Case T first: Pr = 0.5 all subcases lead to TH first -- David. On Aug 31, 2009, at 3:16 PM, Erik Iverson wrot

Re: [R] Offtopic, HT vs. HH in coin flips

2009-08-31 Thread Greg Snow
Well, If the first flip is H, then the HT pattern occurs with the first flip in the second run (after however long the 1st run of heads is). If the first flip is T, then the second run will be H's and the HT pattern will be the first flip of the 3rd run. So the HT pattern will occur after 1 o

Re: [R] Book on R programming

2009-08-31 Thread ANJAN PURKAYASTHA
To All, Your prompt and helpful replies are most appreciated. I'll be sure to check out your suggestions. Cheers, Anjan On Mon, Aug 31, 2009 at 8:24 AM, Ottorino-Luca Pantani < ottorino-luca.pant...@unifi.it> wrote: > ANJAN PURKAYASTHA ha scritto: > >> Most books on R I come across describe runni

Re: [R] Problem with R.2.9.2 Plot functions

2009-08-31 Thread Duncan Murdoch
On 8/31/2009 2:58 PM, steve_fried...@nps.gov wrote: Hello, Last week I installed ver 2.9.1 and it worked fine. This morning I have been working on some simple schemes, plot(PropHatchedNests$Phatched, PropHatchedNests$MEAN) abline(lm(PropHatchedNests$Phatched, PropHatchedNests$MEAN)) This odd

[R] Offtopic, HT vs. HH in coin flips

2009-08-31 Thread Erik Iverson
Dear R-help, Could someone please try to explain this paradox to me? What is more likely to show up first in a string of coin tosses, "Heads then Tails", or "Heads then Heads"? ##generate 2500 strings of random coin flips ht <- replicate(2500, paste(sample(c("H", "T"), 100, r

[R] Problem with R.2.9.2 Plot functions

2009-08-31 Thread Steve_Friedman
Hello, Last week I installed ver 2.9.1 and it worked fine. This morning I have been working on some simple schemes, plot(PropHatchedNests$Phatched, PropHatchedNests$MEAN) abline(lm(PropHatchedNests$Phatched, PropHatchedNests$MEAN)) This oddly produces a box and whiskers plot. I uninstalled 2

Re: [R] Test for stochastic dominance, non-inferiority test for distributions

2009-08-31 Thread Stas Kolenikov
Look for Russell Davidson's work, e.g. this: http://www.citeulike.org/user/ctacmo/article/3681756, easily googlable for more. On Mon, Aug 31, 2009 at 1:04 PM, Matthias Gondan wrote: > Dear R-Users, > > Is anyone aware of a significance test which allows > demonstrating that one distribution domina

Re: [R] Two way joining vs heatmap

2009-08-31 Thread Schalk Heunis
Levi Thanks for the reply, do you know of any function or package that does contain an implementation of two-way joining? I looked at the biclust package which implements several other (more modern?) bi-clustering techniques, but could not find two-way joining. Schalk Heunis On Mon, Aug 31,

[R] Test for stochastic dominance, non-inferiority test for distributions

2009-08-31 Thread Matthias Gondan
Dear R-Users, Is anyone aware of a significance test which allows demonstrating that one distribution dominates another? Let F(t) and G(t) be two distribution functions, the alternative hypothesis would be something like: F(t) >= G(t), for all t null hypothesis: F(t) < G(t), for some t. Best

Re: [R] Google style

2009-08-31 Thread RICHARD M. HEIBERGER
This is where a good editor with proper syntactic indentation is helpful. The first example is Terry's function as indented by ESS. It is very clear that there are two lines with parallel indentation. zed <- function(x,y,z) { x + y +z; } The second function is modified to place the "+" on th

Re: [R] how to add data to some ts

2009-08-31 Thread Mark Knecht
On Mon, Aug 31, 2009 at 6:09 AM, Bunny, lautloscrew.com wrote: > Dear all, > > Finally, I made it, my RPostgreSQL works. After working through some > tutorials, i was able to plot, get and replace several timeseries. > > > Still I miss the opportunity (syntax) to add data. Most tutorials are > abou

Re: [R] Stochastic (transition) matrices: how to determine distributions and variance?

2009-08-31 Thread Chris Stubben
Jonathan Greenberg-2 wrote: > > I am trying to determine the distribution and variance for a classic > stochastic (transition) matrix > I have a few suggestions that I've tried with matrix population models (so probabilities are survival rates plus dead fates). # here's a test example A<-m

Re: [R] Google style

2009-08-31 Thread Mark Knecht
On Mon, Aug 31, 2009 at 10:00 AM, Duncan Murdoch wrote: > On 8/31/2009 11:50 AM, Mark Knecht wrote: >> >> On Mon, Aug 31, 2009 at 6:36 AM, Terry Therneau wrote: >> >>> >>> The authors borrowed so much else from C, the semicolon would have been >>> good too. >> >> >> >> I know real R coders will c

Re: [R] Simple column selection question- which and character lists

2009-08-31 Thread Erik Iverson
1) Don't call your data.frame "data". I will call my "example" one "df". 2) If you want the columns NOT in names.species.bio.18, which is what you said, then the answer is: df[!names(df) %in% names.species.bio.18] Best, Erik -Original Message- From: r-help-boun...@r-project.org [mai

Re: [R] SVM coefficients

2009-08-31 Thread Noah Silverman
Thanks, I just remember with RapidMiner, there was always a screen showing the effective "weights" assigned to each input variable by the SVM. These numbers themselves weren't good for much, except they really helped to visualize the data. It is rather useful to see how much relative weight

Re: [R] Google style

2009-08-31 Thread Duncan Murdoch
On 8/31/2009 11:50 AM, Mark Knecht wrote: On Mon, Aug 31, 2009 at 6:36 AM, Terry Therneau wrote: The authors borrowed so much else from C, the semicolon would have been good too. I know real R coders will chuckle I'd say cringe, rather than chuckle. This is going to make you waste a lot

Re: [R] Simple column selection question- which and character lists

2009-08-31 Thread Stefan Große
> I have a list of column names: > >names.species.bio.18=c("Achimillb","Agrosmitb","Amorcaneb","Andrgerab","Ascltubeb","Elymcanab","Koelcrisb","Lespcapib","Liataspeb","Lupipereb","Monafistb","Panivirgb","Petapurpb","Poaprateb","Querellib","Quermacrb","Schiscopb","Sorgnutab") > > I want to select t

Re: [R] Simple column selection question- which and character lists

2009-08-31 Thread milton ruser
Hi Allen, have you tryed: newDF<-sourceDF[,names.species.bio.18] This will create a new data.frame with only those species you have interest. By the way, your data.frame is called data? Case yes, avoid this, please. good luck milton On Mon, Aug 31, 2009 at 12:39 PM, AllenL wrote: > > Dear

Re: [R] Simple column selection question- which and character lists

2009-08-31 Thread baptiste auguie
Hi, I think you want %in% instead of == see ?"%in%" HTH, baptiste 2009/8/31 AllenL > > Dear R-list, > Seems simple but have tried multiple approaches, no luck. > > I have a list of column names: > > >names.species.bio.18=c("Achimillb","Agrosmitb","Amorcaneb","Andrgerab","Ascltubeb","Elymcana

[R] Simple column selection question- which and character lists

2009-08-31 Thread AllenL
Dear R-list, Seems simple but have tried multiple approaches, no luck. I have a list of column names: >names.species.bio.18=c("Achimillb","Agrosmitb","Amorcaneb","Andrgerab","Ascltubeb","Elymcanab","Koelcrisb","Lespcapib","Liataspeb","Lupipereb","Monafistb","Panivirgb","Petapurpb","Poaprateb","Qu

Re: [R] Two way joining vs heatmap

2009-08-31 Thread Levi Waldron
Hi Schalk, the heatmap function does not implement "two-way joining" as far as I know. It clusters rows and columns independently. However if you find or program a method that implements two-way joining, you could use the row and column ordering it returns in your heatmap using the Rowv and Colv a

Re: [R] Google style

2009-08-31 Thread Mark Knecht
On Mon, Aug 31, 2009 at 6:36 AM, Terry Therneau wrote: > The authors borrowed so much else from C, the semicolon would have been > good too. I know real R coders will chuckle but I've taken to using semicolons just because it looks better to my eyes and let's my brain know where I think lines en

Re: [R] how to generate a random correlation matrix with restrictions

2009-08-31 Thread Giovanni Petris
So, you want about 10% of the correlations to be greater than 0.9. And what about the others? It would be helpful to know why you need this kind of matrix and what you are going to do with it. Here is an attempt, based on generating a random variance matrix from a Wishart distribution and transf

Re: [R] Computer Modern Fonts in R graphic

2009-08-31 Thread Charlie Sharpsteen
I could see how that might happen- persp creates many, many small rectangles which results in a large file size and may operations for the TeX processor to handle. I was able to compile the example you posted, but due to the amount of graphic elements, it took a long time ~25 seconds. If you have t

[R] R2 for SAR and validation

2009-08-31 Thread saniye keser
Hi everyone, How can i obtain R2 for SAR model? and how can i validate the results, can i use the coefficients directly in a simple formula like y=b0+b1*x1+... or do i have to use the complicated formula for SAR (the one with the weight matrix and rho and...)?   Thanks for any help! 

[R] source(.trPaths[5], echo=TRUE, max.deparse.length=150)

2009-08-31 Thread Richard Anderson
I just upgraded to Tinn-R 2.3.2.3. Is the above line (see Subject) going to be echoed back to me everytime I try to send a command to R of can I stop it? I've also lost my function of arrowing back up to recall previous commands. Can I get that back? richard -- Richard M. Anderson, Assis

Re: [R] correlation between two 2D point patterns?

2009-08-31 Thread William Simpson
Thanks Chuck. Interesting suggestion. Thanks to everyone for the help. Bill On Sun, Aug 30, 2009 at 4:59 PM, Charles C. Berry wrote: > > > Bill, > >prod( cancor( A,B )$cor ) > > perhaps? > > Note that this accounts for linear transformations. > > HTH, > > Chuck > > On Sun, 30 Aug 2009, W

Re: [R] Computer Modern Fonts in R graphic

2009-08-31 Thread Charlie Sharpsteen
Hi Liviu, Right now our main project is to continue debugging and polishing the tikzDevice. After that has proceeded, Cameron and I are planning to turn our attention to Sweave. Right now, the tikzDevice can be used from within Sweave by following a process similar to: ... \begin{figure} <<"bod

Re: [R] help on ar(1)

2009-08-31 Thread ONKELINX, Thierry
Have a look at the gls() function from the nlme package. The helpfile of gls() contains an example of an AR1 structure. HTH, Thierry ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Research Institute fo

[R] help on ar(1)

2009-08-31 Thread Gaspar Núñez
Hi i´m trying to run a modelo of the form y(t) = b1 + b2x(t) + b3x(t) + u(t) and i need to introduce an ar(1) into the equation can anyone tell me about a reference with an example thanks again -- Gaspar [[alternative HTML version deleted]]

Re: [R] write file to date-stamped folder

2009-08-31 Thread David Huffer
How about: > test.table <- matrix ( rnorm ( 25 ) , ncol = 5 ) > outputDir = paste ( + getwd ( ) + , "/OutputData-" + , Sys.Date ( ) + , sep = "" + ) > dir.create ( outputDir ) > write.table ( + test.table + , paste ( + outputDir + , "test.table.txt" + , sep = "/" + ) +

Re: [R] SVM coefficients

2009-08-31 Thread Steve Lianoglou
Hi, On Aug 31, 2009, at 3:32 AM, Noah Silverman wrote: Steve, That doesn't work. Actually, it does :-) I just trained an SVM with 80 variables. svm_model$coefs gives me a list of 10,000 items. My training set is 30,000 examples of 80 variables, so I have no idea what the 10,000 items

Re: [R] Google's R Style Guide

2009-08-31 Thread Tobias Verbeke
Vitalie S. wrote: On Fri, 28 Aug 2009 16:40:53 +0200, Kevin Wright wrote: On Fri, Aug 28, 2009 at 8:22 AM, Ted Harding wrote: On 28-Aug-09 12:59:24, Esmail wrote: > Perhaps most of you have already seen this? > > http://google-styleguide.googlecode.com/svn/trunk/google-r-style.html > > Comme

Re: [R] Google's R Style Guide

2009-08-31 Thread Vitalie S.
On Fri, 28 Aug 2009 16:40:53 +0200, Kevin Wright wrote: On Fri, Aug 28, 2009 at 8:22 AM, Ted Harding wrote: On 28-Aug-09 12:59:24, Esmail wrote: > Perhaps most of you have already seen this? > > http://google-styleguide.googlecode.com/svn/trunk/google-r-style.html > > Comments/Critiques? > >

Re: [R] write file to date-stamped folder

2009-08-31 Thread Ted Harding
On 31-Aug-09 13:18:38, Henrique Dallazuanna wrote: > Try this: > write.table(test.table, file.path(outputDir, "test.table.txt"), > sep="\t") That may not work (depending on the platform OS) if the directory 'outputDir' does not already exist (it will not work on Linux). In that case, first: sy

Re: [R] How to extract the theta values from coxph frailty models

2009-08-31 Thread David Winsemius
On Aug 31, 2009, at 1:57 AM, shan...@bios.unc.edu wrote: Hello, I am working on the frailty model using coxph function. I am running some simulations and want to store the variance of frailty (theta) values from each simulation result. Can anyone help me how to extract the theta values fr

Re: [R] Best R text editors?

2009-08-31 Thread Vitalie S.
On Mon, 31 Aug 2009 12:25:38 +0200, Jim Lemon wrote: Liviu Andronic wrote: Could someone give a brief and subjective overview of ESS. I notice that many people use it, and many describe it as the tool for the power user. As far as I'm concerned, I've once again looked at Emacs (after couple of

Re: [R] Google style

2009-08-31 Thread Terry Therneau
Since I read digests, and don't read mail on weekends, I come to this discussion late. It was very entertaining. I only wish to comment on 2 points. The first is Henrich's (I believe) one that trying to convert an old-time user to new styles is futile. I agree wholeheartedly. As proof I of

Re: [R] package installation error

2009-08-31 Thread Duncan Murdoch
On 31/08/2009 8:53 AM, Haynes, Maurice (NIH/NICHD) [E] wrote: On Sun April 19, you posted the following on R-help: After installing 2.9.0 I tried loading packages, but keep getting the following error. package 'robustbase' successfully unpacked and MD5 sums checked Error in normalizePath(path)

Re: [R] write file to date-stamped folder

2009-08-31 Thread Henrique Dallazuanna
Try this: write.table(test.table, file.path(outputDir, "test.table.txt"), sep="\t") On Mon, Aug 31, 2009 at 4:45 AM, suzylee wrote: > > Hello, > > I would like to be able to write all files produced on one day to an output > directory with that date stamp, or alternatively stamp the date in th

Re: [R] Complexity parameter in rpart

2009-08-31 Thread Terry Therneau
> I have read that it is best to select the complexity parameter which minimises the cross-validated (x) error of the model, but elsewhere I have read that the optimum cp is the first value on the left above the '1+SE' line of the complexity paramter plot. If you plot x=complexity vs y= cross-va

Re: [R] package installation error

2009-08-31 Thread Haynes, Maurice (NIH/NICHD) [E]
On Sun April 19, you posted the following on R-help: > After installing 2.9.0 I tried loading packages, but keep getting the > following error. > > package 'robustbase' successfully unpacked and MD5 sums checked > Error in normalizePath(path) : > path[1]="C:\Program Files\R\R-2.9.0\library/robust

[R] write file to date-stamped folder

2009-08-31 Thread suzylee
Hello, I would like to be able to write all files produced on one day to an output directory with that date stamp, or alternatively stamp the date in the filename. So that if i run the same code the next day the files will not be overwritten. here's what i have to start with: baseDir = getwd() o

Re: [R] Lattice: no grid name space

2009-08-31 Thread Theophilus Osei-Poku
Can some one please help me out with this? Package 'grid' does not have a name space. The lattice package does not work because of this. Kind regards, Theophilus . === The content of this message may contain the private views and opinions

Re: [R] Best R text editors?

2009-08-31 Thread Wind2
eclipse + StatET Jonathan Greenberg-2 wrote: > > Quick informal poll: what is everyone's favorite text editor for working > with R? I'd like to hear from people who are using editors that have > some level of direct R interface (e.g. Tinn-R, Komodo+SciViews). Thanks! > > --j > > -- > >

Re: [R] Computer Modern Fonts in R graphic

2009-08-31 Thread Friedericksen Hope
Dear Paul, thank you very much for your answer. You are right, pdfFonts() solved the "problem". :-) I also will try to install the fonts on my system. Thank you! Greetings, basil Paul Murrell wrote: Hi Friedericksen Hope wrote: Hello all, I am trying to use computer modern fonts in my r

Re: [R] Computer Modern Fonts in R graphic

2009-08-31 Thread Friedericksen Hope
Dear Charlie, thank you very much for your response. The tikzDevice is a very nice developing thing. I already tried to create my graphic with this device, but unfortunately the created *.tex file exceeded the main memory size of my tex processor. Therefore I tried the "classic" way of impleme

[R] How to extract the theta values from coxph frailty models

2009-08-31 Thread Viswanathan Shankar
Hello, I am working on the frailty model using coxph functions. I am running some simulations and want to store the variance of frailty (theta) values from each simulation result. Can anyone help me how to extract the theta values from the results. I appreciate any help. Thanks Shankar Viswan

[R] how to add data to some ts

2009-08-31 Thread Bunny, lautloscrew.com
Dear all, Finally, I made it, my RPostgreSQL works. After working through some tutorials, i was able to plot, get and replace several timeseries. Still I miss the opportunity (syntax) to add data. Most tutorials are about: "Download some S&P data from Yahoo and play around a little". What I

Re: [R] SVM coefficients

2009-08-31 Thread Bernd Bischl
Noah Silverman wrote: Steve, That doesn't work. I just trained an SVM with 80 variables. svm_model$coefs gives me a list of 10,000 items. My training set is 30,000 examples of 80 variables, so I have no idea what the 10,000 items represent. There should be some attribute that lists the "w

Re: [R] clarificatin on validate.ols method='cross'

2009-08-31 Thread Frank E Harrell Jr
Dylan Beaudette wrote: Hi, I was hoping to clarify the exact behavior associated with this incantation: validate(fit.ols, method='cross', B=50) Output: index.orig trainingtest optimism index.corrected n R-square 0.5612 0.5613 0.5171 0.0442 0.5170 50 MSE

Re: [R] Book on R programming

2009-08-31 Thread [Ricardo Rodriguez] Your XEN ICT Team
Hi, ANJAN PURKAYASTHA wrote: Most books on R I come across describe running statistical procedures in R. Any suggestions on a good book that teaches *programming* in R? Thanks, Anjan This is being really useful for me... John M. Chambers (2008) Software for Data Analysis. Programming with R.

Re: [R] Book on R programming

2009-08-31 Thread Peter Dalgaard
ANJAN PURKAYASTHA wrote: > Most books on R I come across describe running statistical procedures in R. > Any suggestions on a good book that teaches *programming* in R? > Thanks, > Anjan > The current crop seems to be mainly Braun & Murdoch (2007) Venables & Ripley (2000) Chambers (2008) Gentlem

Re: [R] Book on R programming

2009-08-31 Thread Ottorino-Luca Pantani
ANJAN PURKAYASTHA ha scritto: Most books on R I come across describe running statistical procedures in R. Any suggestions on a good book that teaches *programming* in R? Thanks, Anjan Here there are a few http://www.r-project.org/doc/bib/R-books.html [42] and [79] may be good starting point

[R] Book on R programming

2009-08-31 Thread ANJAN PURKAYASTHA
Most books on R I come across describe running statistical procedures in R. Any suggestions on a good book that teaches *programming* in R? Thanks, Anjan -- = anjan purkayastha, phd bioinformatics analyst whitehead institute for biomedical research nine cambridge cente

Re: [R] test for bimodality

2009-08-31 Thread David Scott
Rolf Turner wrote: On 31/08/2009, at 9:40 AM, John Sansom wrote: Has a test for bimodality been implemented in R? Doing RSiteSearch("test for bimodality") yields one hit, which points to http://finzi.psych.upenn.edu/Rhelp08/2008-September/173308.html It looks like it might be *some* help t

Re: [R] Google's R Style Guide

2009-08-31 Thread baptiste auguie
Considering these new insights from Romain and Duncan, a good project might be to revisit package.skeleton, using the parser package. This reminds me of a recent proposal of parsing Rd files to convert them into roxygen tags in the source code. Thanks for the input, baptiste 2009/8/31 Duncan

Re: [R] interactions and stall or memory shortage

2009-08-31 Thread jim holtman
Use "Rprof" on a small sample and determine where the time is being spent. Do some periodic gc() or memory.size() to see how fast you are using up memory. Do an object.size on all your objects to see see how be they are. This would help in the determination of the problem. On Mon, Aug 31, 2009

Re: [R] Bootstrap inference for the sample median?

2009-08-31 Thread Ted Harding
On 30-Aug-09 16:24:08, Emmanuel Charpentier wrote: > Le dimanche 30 août 2009 Ã_ 18:43 +0530, Ajay Shah a écrit : >> Folks, >> I have this code fragment: >> set.seed(1001) >> x <- c(0.79211363702017, 0.940536712079832, 0.859757602692931, >> 0.82529998629531, 0.973451006822,0.9237

[R] interactions and stall or memory shortage

2009-08-31 Thread alexander russell
Hello, After putting together interaction code that worked for a single pair of interactions, when I try to evaluate two pairs of interactions( flowers*gopher, flowers*rockiness) my computer runs out of memory, and the larger desktop I use just doesn't go anywhere after about 20 minutes. Is it re

Re: [R] Best R text editors?

2009-08-31 Thread Uli Kleinwechter
Dear Liviu, Following the links Martin has sent, would be my recommendation, as well. In addition: From my point of view the great advantage of Emacs+ESS is that you can send your code from the editor to the R process. Furthermore, the possibilities of navigating within the text using keyboard

Re: [R] Google's R Style Guide

2009-08-31 Thread Duncan Murdoch
baptiste auguie wrote: 2009/8/31 David Scott I think this discussion is valuable, and have previously asked about style which I think is very important. Base R does suffer from very inconsistent naming and as I think Duncan said it makes it very difficult sometimes to remember names when yo

Re: [R] Google's R Style Guide

2009-08-31 Thread Romain Francois
Hi, Maybe the parser package can help you building such a code beautifier: > require( parser ) > data <- attr( parser( "/tmp/code.R" ), "data" ) > head( subset( data, terminal ), 5 ) line1 col1 byte1 line2 col2 byte2 token id parent token.desc terminaltext 1 10 0

Re: [R] Google's R Style Guide

2009-08-31 Thread baptiste auguie
2009/8/31 David Scott > > > I think this discussion is valuable, and have previously asked about style > which I think is very important. Base R does suffer from very inconsistent > naming and as I think Duncan said it makes it very difficult sometimes to > remember names when you have variations

Re: [R] Pls package

2009-08-31 Thread Bjørn-Helge Mevik
Payam Minoofar writes: > I have managed to format my data into a single datframe consisting of two > AsIs response and predictor dataframes in order to supply the plsr command of > the pls package for principal components analysis. > > When I execute the command, however, I get this error: >> f

Re: [R] Best R text editors?

2009-08-31 Thread Jim Lemon
Liviu Andronic wrote: Could someone give a brief and subjective overview of ESS. I notice that many people use it, and many describe it as the tool for the power user. As far as I'm concerned, I've once again looked at Emacs (after couple of years) and I still don't feel like using it for my edit

Re: [R] how to generate a random correlation matrix with restrictions

2009-08-31 Thread Kornelius Rohmeyer
Hi, i want to pick up your last method and add that "about 10% of r_ij are greater than 0.9" could mean for example that there is a cluster of about sqrt(1000) variables that are highly correlated. But first let us note, that there is no canonical meaning for the randomness of a random correlatio

Re: [R] Google's R Style Guide

2009-08-31 Thread David Scott
(Ted Harding) wrote: On 29-Aug-09 17:51:54, diegol wrote: Max Kuhn wrote: Perhaps this is obvious, but Ive never understood why this is the general convention: An opening curly brace should never go on its own line; I tend to do this: f <- function() { if (TRUE) { cat("TRUE!!\n"

[R] permutation test - query

2009-08-31 Thread Yonatan Nissenbaum
Hi, My query is regarding permutation test and reshuffling of genotype/phenotype data I have been using the haplo.stats package of R. for haplotype analysis and I would like to perform an analysis which I'm requesting your advice. I have a data set of individuals genotyped for 12 SNP and a dichoto

r-help@r-project.org

2009-08-31 Thread Mark Difford
Hi John, >> Has a test for bimodality been implemented in R? You may find the code at the URL below useful. It was written by Jeremy Tantrum (a PhD of Werner Stuetzle's). Amongst other things there is a function to plot the unimodal and bimodal Gaussian smoothers closest to the observed data. A

Re: [R] Best R text editors?

2009-08-31 Thread Martin Maechler
> "LA" == Liviu Andronic > on Sun, 30 Aug 2009 11:59:52 +0100 writes: LA> Hello, LA> On 8/30/09, Uli Kleinwechter wrote: >> contributing to your poll: Also Emacs+ESS on Linux. >> LA> Could someone give a brief and subjective overview of ESS. I notice LA> that

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