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493 discussions - 1,581 posts

  • Greetings List, I am conducting some large simulations using R. As a result, I get many plots but I'm having some trouble with including some of them in a Microsoft Word document. Can any one tell me ...
    Mahmoud K. OkashaMahmoud K. Okasha
    Feb 20, 2004 at 3:54 pm
    Feb 24, 2004 at 8:16 am
  • ABCD are four matrix. A * Inverse((Transpose(A)*Tranpose(B)*B*A+C)) * Transpose(A) * Transpose(B) * D how to write in R in an efficient way? ---------------------------------
    Grace ConlonGrace Conlon
    Feb 16, 2004 at 9:44 pm
    Feb 26, 2004 at 10:39 pm
  • I've got a PhD student starting this year. She'll be working on data mining. She has asked for a reading list while she's still in her home country, which is a really good sign. Her cosupervisor and ...
    Richard A. O'KeefeRichard A. O'Keefe
    Feb 9, 2004 at 1:08 am
    Feb 9, 2004 at 11:47 pm
  • I have been lurking in this list a while and searching in the archives to find out how one learns to write fast R code. One solution seems to be to write part of the code not in R but in C. However ...
    Lennart BorgmanLennart Borgman
    Feb 17, 2004 at 2:36 pm
    Feb 18, 2004 at 1:40 pm
  • Dear all, I hope to know how to compile the R help file in LaTeX format under Windows 2000. The TeX/LaTeX system is TeXLive 2002, and the version of R is 1.8.x. Another question, I hope to get the ...
    Jinsong ZhaoJinsong Zhao
    Feb 15, 2004 at 5:18 am
    Feb 16, 2004 at 12:01 am
  • Hi all, I have two questions 1 - I have the version 1.4.1 of R, and it doesn't have the 'agrep' function in the base library. Is there a way to make this funcion avaliable in R 1.4.1? I mean, how to ...
    Marcos SanchesMarcos Sanches
    Feb 11, 2004 at 5:53 pm
    Feb 13, 2004 at 11:18 pm
  • Dear all, I am a newcomer to R. I intend to using R to do stepwise regression and PLS with a data set (a 55x20 matrix, with one dependent and 19 independent variable). Based on the same data set, I ...
    Jinsong ZhaoJinsong Zhao
    Feb 1, 2004 at 2:05 pm
    Feb 3, 2004 at 10:45 am
  • Hello I am doing a project on ordered logit/probit models using Splus. I am using the polr function in library(MASS) which is exactly the same code as in R. Unfortunatelly I am not very succesfull ...
    C. SpanouC. Spanou
    Feb 4, 2004 at 9:44 am
    Feb 25, 2004 at 1:27 am
  • Hi, I did not find any web page about using R in economics and econometrics so far. However, this does not mean that there is none (searching with google for "R" and "economics" gives many pages ...
    Arne HenningsenArne Henningsen
    Feb 19, 2004 at 1:26 pm
    Feb 23, 2004 at 2:25 pm
  • Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on hypatia.math.ethz.ch X-Spam-Status: No, hits=3.5 required=5.0 ...
    Claudia PaladiniClaudia Paladini
    Feb 24, 2004 at 1:34 pm
    Feb 27, 2004 at 4:09 pm
  • I'm trying to build the current development version of R on an SGI running IRIX6.5. Everything proceeds merrily until I reach the eda package. This is the error message I get if I cd to the ...
    Deborah SwayneDeborah Swayne
    Feb 18, 2004 at 4:34 pm
    Feb 19, 2004 at 6:50 pm
  • Hello, how do you create a histogram with a data frame? year snow.cover 1970 6.5 1971 12.0 1972 14.9 1973 10.0 1974 10.7 1975 7.9 ... mydata=data.frame(year=c(1970,...),snow.cover=c(6.5,...)) ...
    Philippe de RochambeauPhilippe de Rochambeau
    Feb 4, 2004 at 11:41 am
    Feb 5, 2004 at 2:34 pm
  • Dear Sir/Madam, I am using R version 1.8.1. I am doing following tast: First generate 100 Gaussion(3,1) numbers, then write the likelihood function to estimate the parameters of Gaussian distribution ...
    Edward SunEdward Sun
    Feb 22, 2004 at 7:10 pm
    Feb 25, 2004 at 4:27 pm
  • Hi, I use ks.test or lillie.test to verify a normal distribution. It's performed for a group My users use SigmaStat software and a One Way ANOVA on several groups In the result page there is a ...
    Laurent HoudusseLaurent Houdusse
    Feb 6, 2004 at 9:20 am
    Feb 23, 2004 at 9:30 am
  • Hi, I'm trying fitdistr but I'm getting some errors Error in fitdistr(rnorm(100), "Normal", start = list(mean = 0, sd = 1)) : supplying pars for the Normal is not supported What is the problem here ? ...
    Ernesto JardimErnesto Jardim
    Feb 17, 2004 at 4:38 pm
    Feb 18, 2004 at 10:30 am
  • Hello everyone, In plotting several graphics, I'd like to be able to plot a blank plot as in: par(mfrow=c(2,1)) plot(BLANK) hist(rgamma(100000,6463.7,scale=0.015471),xlim=c(0,120),main="Emergence") I ...
    Adrian CusterAdrian Custer
    Feb 13, 2004 at 8:11 pm
    Feb 14, 2004 at 4:10 pm
  • Hi all, I'm trying to use lapply on a list with the following command: out<-lapply(mylist,myfun,par1=p,par2=d) (1) where myfun<-function(x,par1,par1) {.....} (2) now this function is in fact a ...
    Jason NielsenJason Nielsen
    Feb 11, 2004 at 5:54 am
    Feb 13, 2004 at 7:16 pm
  • How do I cite a package (not R itself - I know how to do that)? Any thoughts or links? Many thanks in advance? Hank Stevens Dr. Martin Henry H. Stevens, Assistant Professor 338 Pearson Hall Botany ...
    Martin Henry H. StevensMartin Henry H. Stevens
    Feb 9, 2004 at 2:21 pm
    Feb 9, 2004 at 7:49 pm
  • Hello, I've come across the following situation in R-1.8.1 (compile + running under RedHat 7.1): [1] -1.037310e-11 I'd expect the later to be 0 or some very small positive number. Is this a number ...
    Arne MullerArne Muller
    Feb 4, 2004 at 1:19 pm
    Feb 4, 2004 at 8:39 pm
  • Hello All, I have a 131072x132 matrix for which I need to compute a regular euclidean distance matrix, which I then need to transform and run agnes() on this transformed matrix. I am having trouble ...
    Arnav ShethArnav Sheth
    Feb 25, 2004 at 6:16 pm
    Feb 26, 2004 at 2:00 am
  • Dear Sir, I am a new user of R and I am doing a tast, which is: find the maximum likelihood estimate of the parameter of Gaussian distribution for generated 100 numbers by using x=rnorm(100, mean=3, ...
    Edward SunEdward Sun
    Feb 15, 2004 at 8:48 pm
    Feb 16, 2004 at 5:42 pm
  • I am using R to do a loess normalisation procedure. In 1.5.1 I used the following commands to normalise the variable "logratio", over a 2d surface (defined by coordinates x and y): However in 1.8.1 ...
    Thomas JagoeThomas Jagoe
    Feb 13, 2004 at 6:25 pm
    Feb 14, 2004 at 6:29 pm
  • Hi, I have a problem. I would like to put my SAS-code into R. Could I do that, if yes, how? Best regards Jim Gustafsson Codan Insurance, Gammel Kongevej 60, DK-1790 Copenhagen V telephone: +45 33 55 ...
    Jim GustafssonJim Gustafsson
    Feb 12, 2004 at 11:12 am
    Feb 12, 2004 at 5:32 pm
  • Hi all, I need to enlarge te fonts used oo R-plots (plots, histograms, ...) in labels and titles etc. I seem to be unable to figure out how to do it. The problem is that the titles of the plots are ...
    Piet van RemortelPiet van Remortel
    Feb 11, 2004 at 12:30 pm
    Feb 11, 2004 at 8:32 pm
  • I would like to construct a PHP script that runs R to generate a graphics file. Running R itself is no problem. However, it seems impossible to instantiate one of the graphics devices to create ...
    Feb 3, 2004 at 2:26 am
    Feb 4, 2004 at 7:21 pm
  • Hello. I asked before and it was great, cause as a beginner I learned a lot. But, if I have this in R (1 and 2 are codes for sex): [1] 1 2 2 1 1 2 2 2 I´d like to obtain the proportion according to ...
    Carlos Mauricio Cardeal MendesCarlos Mauricio Cardeal Mendes
    Feb 29, 2004 at 2:35 pm
    Feb 29, 2004 at 7:48 pm
  • My understanding of SVD is that, for A an mxn matrix, m n: A = UWV* where W is square root diagonal eigenvalues of A*A extended with zero valued rows, and U and V are the left & right eigen vectors ...
    Philip WarnerPhilip Warner
    Feb 28, 2004 at 1:47 pm
    Feb 28, 2004 at 2:57 pm
  • Hi I had two questions regarding plots: * Is there are way to save a plot in the form of an object such that it could be displayed/modified later? * I've been using Minitab for some work and I found ...
    Rajarshi GuhaRajarshi Guha
    Feb 26, 2004 at 8:47 pm
    Feb 27, 2004 at 8:13 am
  • Hello, Could someone please tell if there is a way to append header info to the top of an exported dataframe (exported with write.table). I want to append the following, which are the defininitions ...
    Feb 26, 2004 at 9:15 pm
    Feb 26, 2004 at 10:21 pm
  • I am a new R user. As a test, I want to write a simple code that does the following simulation: 1. Randomly generate a number from a distribution, say, Poisson. Let's say that number is 3. 2 ...
    Feb 22, 2004 at 5:18 pm
    Feb 25, 2004 at 10:59 am
  • I know this: [1] 4Apr79 and that `x' here has to be a string, e.g.: [1] 1971 I'm stuck in reading from a file. I say: V1 V2 1 1979-04-04 -1.04712042 2 1979-04-06 0.54538055 3 1979-04-09 0.09663392 4 ...
    Ajay ShahAjay Shah
    Feb 23, 2004 at 8:07 pm
    Feb 25, 2004 at 7:48 am
  • Hi there, I have just found that the ``attach'' function can get you into trouble when called many times. For example, you have a simulation routine called ``f()'', in which you used ``attach'' and ...
    Li dongfengLi dongfeng
    Feb 24, 2004 at 3:32 pm
    Feb 24, 2004 at 9:20 pm
  • Hello all! I?m working with some training datasets in a SAS-based course, trying to do the same things in lme that I do in PROC MIXED. Why don?t lme do an analysis on this dataset when I use the ...
    CG PetterssonCG Pettersson
    Feb 23, 2004 at 9:52 am
    Feb 24, 2004 at 6:45 pm
  • I have 2GB installed on my windows XP box running R 1.9.0, and after performing a prune.tree(intree,newdata), I get an out of memory error within R, but it says the maximum allowed is 1024gb (1/2 of ...
    Jonathan GreenbergJonathan Greenberg
    Feb 19, 2004 at 11:14 pm
    Feb 20, 2004 at 9:19 pm
  • Dear R-help list, I'm trying to overlay a number of data objects in a plot. Following an earlier example on the list I've created an empty plot as follows Error in as.double.default(x) : (list) ...
    Feb 18, 2004 at 6:03 pm
    Feb 18, 2004 at 10:49 pm
  • Hi, everybody. This was an interesting discussion last time and it helped me a lot. Could you please have a look at some feature and tell me why it was designed this way (my questions are under ...
    Svetlana EdenSvetlana Eden
    Feb 18, 2004 at 4:45 pm
    Feb 18, 2004 at 6:00 pm
  • Is the difference in behavior below, introduced in 1.8, inconsistent or, at least, undesirable? I couldn't find this in the NEWS. On the one hand, [1] "break" "next" On the other, [1] "break." ...
    White DenisWhite Denis
    Feb 6, 2004 at 9:57 pm
    Feb 17, 2004 at 8:59 pm
  • Dear All, I am doing some exercise in statistics textbook on comparison of two experimental means. Is it possible to use t.test() do t-test when I have only two means, sample size, two standard ...
    Pramote KhuwijitjaruPramote Khuwijitjaru
    Feb 14, 2004 at 3:33 pm
    Feb 16, 2004 at 4:59 am
  • OK I have been trying to learn how to use this program and I cannot even import any data into it. I have downloaded all the manuals but they do not seem to help. Is there a book on R for dummies???
    Marisa RamosMarisa Ramos
    Feb 12, 2004 at 7:49 pm
    Feb 13, 2004 at 3:44 pm
  • We are trying to compile and run the ttest.c example that comes with R (in C:\Program Files\R\rw1081\src\library\windlgs\src\ttest.c). After compiling it with MS Visual C++ we load the DLL with ...
    Lennart BorgmanLennart Borgman
    Feb 10, 2004 at 1:27 pm
    Feb 11, 2004 at 7:31 pm
  • hi all how does one simulate a random walk process? i.e y(0)=0 y(t)=y(t-1)+ e(t) where e(t) is normal(0,1) say. Regards allan
    Allan clarkAllan clark
    Feb 10, 2004 at 2:48 pm
    Feb 10, 2004 at 4:50 pm
  • Hi, I have a simple question about matrix/data frame manipulation. I have a data frame that looks a something like this X Y Z 1 0 "apples" -1 -1 "oranges" ... 0 -1 "bananas" and I'd like to pull out ...
    Roger LevyRoger Levy
    Feb 9, 2004 at 8:22 pm
    Feb 10, 2004 at 12:15 am
  • Sorry, I forgot to correct the message subject, so I am resending my doubt it below: Hi all! I wrote a very basic program in R, which has some loops ('for' and 'while'). Is there a way to print the ...
    Marcos SanchesMarcos Sanches
    Feb 9, 2004 at 7:08 pm
    Feb 9, 2004 at 10:40 pm
  • I was trying to generate random numbers with a gamma distribution. In R the function is: rgamma(n, shape, rate = 1, scale = 1/rate). My question is that if X~gamma(alpha, beta) and I want to generate ...
    Icabalceta, Jorge L.Icabalceta, Jorge L.
    Feb 5, 2004 at 9:52 pm
    Feb 6, 2004 at 10:09 pm
  • Hello, i have written this little function to draw different normal distributions: n.Plot <- function(x,my,sigma) { e <- exp(1) names(x) <- x f.x <- ...
    Felix EschenburgFelix Eschenburg
    Feb 5, 2004 at 9:45 pm
    Feb 6, 2004 at 5:03 pm
  • I have two factors l1, l2, and I'd like to merge them. (Remark: The factors can not be converted to charaters) Function c() does not give me the result I want: [1] 1 2 1 2 Levels: 1 2 I'd like to ...
    Svetlana EdenSvetlana Eden
    Feb 5, 2004 at 8:11 pm
    Feb 5, 2004 at 11:44 pm
  • Hi, I would like to plot a graph with one axis in log scale and the other in normal probability scale using R. I cannot change the axis scale to probability scale. What can be a solution? Thanks. CT
    C ChangC Chang
    Feb 3, 2004 at 8:50 pm
    Feb 4, 2004 at 2:36 pm
  • I am a new R user attempting to convert files from Statistica to R. I can export from Statistica to SPSS .por format, but not to the SPSS .sav format. Is there a procedure for easily accomplishing ...
    Steve BurgessSteve Burgess
    Feb 1, 2004 at 8:39 am
    Feb 1, 2004 at 1:16 pm
  • Ok, I think I may have a path or permissions problem (below). Anyone know which settings I should check? When I use "Rcmd SHLIB <filename " I get: C:\Program Files\R\rw1081\bin Rcmd SHLIB ...
    Gabriel LawsonGabriel Lawson
    Feb 29, 2004 at 6:49 am
    Mar 3, 2004 at 3:19 am
  • Using R 1.7.1 in Solaris I'm developing a package for both Splus and R, and I'm trying to use all the same files for R and Splus, both function files and help files. I have two questions. 1) The file ...
    Jason SinnwellJason Sinnwell
    Feb 27, 2004 at 4:26 pm
    Feb 28, 2004 at 9:02 am
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Prof Brian Ripley: 76 posts Liaw, Andy: 75 posts Uwe Ligges: 58 posts Spencer Graves: 52 posts Peter Dalgaard: 47 posts Gabor Grothendieck: 45 posts Douglas Bates: 36 posts Duncan Murdoch: 30 posts Marc Schwartz: 30 posts Thomas Lumley: 30 posts John Fox: 25 posts Deepayan Sarkar: 20 posts Tom Blackwell: 18 posts Sundar Dorai-Raj: 17 posts Andy Bunn: 16 posts Ko-Kang Kevin Wang: 15 posts Roger D. Peng: 13 posts Wolski: 13 posts Roger Bivand: 12 posts Chuck Cleland: 11 posts
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