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293 discussions - 880 posts

  • Dear R help users: I have set up a r help mailing list archive based on mysql which support full text search and auto-update. Please visit http://www.baidao.net/r/maillist/index.cgi . I hope you ...
    Chen HuashanChen Huashan
    Mar 7, 2002 at 5:35 am
    Apr 13, 2002 at 8:19 am
  • Dear list, I ran a mixed effect model using R 1.4.1 and SAS 8.0 on the SIMS data found in the SASmixed package and found that the degrees of freedoms for fixed effects are very different. From R, df ...
    Kaiya LiuKaiya Liu
    Mar 31, 2002 at 10:52 am
    Mar 31, 2002 at 10:21 pm
  • Hi all, Is there a way to count how many flops have been performed so far, or in a given section of code? dave r +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ ...
    David A RichmondDavid A Richmond
    Mar 31, 2002 at 4:14 pm
    Mar 31, 2002 at 4:14 pm
  • We are publishers of specialized reports and directories dealing with public affairs. Our new directory, "The United States Healthcare Directory" covers hospitals, nursing homes, HMOs, pharmaceutical ...
    Barbara CaldwellBarbara Caldwell
    Mar 31, 2002 at 10:26 am
    Mar 31, 2002 at 10:26 am
  • Hello!! At first thank you all for your suggestions and your help. But I would like to get another group of datas from the density estimation. I don't know if these information are provided by locfit ...
    Ralf KloessingerRalf Kloessinger
    Mar 31, 2002 at 2:37 am
    Mar 31, 2002 at 5:18 am
  • I found a strange inconsistency: If m is a matrix and d is a data frame then - mean(m), median(m), max(m) and max(d) all return a single value but - mean(d) returns the column means - median(d) fails ...
    GgrothendieckGgrothendieck
    Mar 30, 2002 at 7:53 pm
    Mar 30, 2002 at 11:14 pm
  • Hello!!! I'm just a beginner of R. I work with locfit to get the density from an numeric vector. It looks good when I plot the graph, but I need the output data of locfit. For example I need somthing ...
    Ralf KloessingerRalf Kloessinger
    Mar 29, 2002 at 7:16 pm
    Mar 30, 2002 at 6:43 pm
  • Hello! As I remember there were questions concerning wilks' lambda lately. But I lost those e-mails. So I dare ask again. Is there a way of calculating wilks' lambda for lda? Christoph. -- Christoph ...
    Christoph LangeChristoph Lange
    Mar 30, 2002 at 5:28 pm
    Mar 30, 2002 at 5:28 pm
  • i want to call "c:/Program Files/Netscape/Communicator/Program/netscape.exe" with system but system("c:/Program Files/Netscape/Communicator/Program/netscape.exe") does not work because of the blank ...
    Erich NeuwirthErich Neuwirth
    Mar 29, 2002 at 12:36 am
    Mar 30, 2002 at 1:02 pm
  • While downloading the R 1.4.1 for windows from the zip file, I downloaded a zip file rw1041m.zip which consisted of .Rd files. Could anybody tell what are these files for? Indrajit SenGupta ...
    Indrajit SenguptaIndrajit Sengupta
    Mar 30, 2002 at 4:43 am
    Mar 30, 2002 at 7:17 am
  • Hi, In the order() help file, there is an example like: a <- c(4, 3, 2, NA, 1) b <- c(4, NA, 2, 7, 1) z <- cbind(a, b) (o <- order(a, b)); z[o, ] How can I do something like "order a in ascending ...
    Ko-Kang Kevin WangKo-Kang Kevin Wang
    Mar 29, 2002 at 11:09 am
    Mar 30, 2002 at 4:58 am
  • I am processing some survey results, and my data are being read in as "factors". I don't know how to process these things in any way. To start with, several of the survey questions are mulit-choice ...
    Tom ArnoldTom Arnold
    Mar 29, 2002 at 1:58 pm
    Mar 30, 2002 at 1:27 am
  • The Division of Biostatistics and Epidemiology at U. Virginia School of Medicine in Charlottesville in beautiful central Virginia has two positions open for M.S. biostatisticians (Biostatistician ...
    Frank E Harrell JrFrank E Harrell Jr
    Mar 29, 2002 at 8:02 pm
    Mar 29, 2002 at 8:02 pm
  • I have a large number of troff help files which are automatically converted to .Rd files. Many of these have examples which contain the printed output of the examples. This makes ...
    Frank E Harrell JrFrank E Harrell Jr
    Mar 29, 2002 at 12:14 am
    Mar 29, 2002 at 8:01 pm
  • Hi all, I have some difficulties with the lme function and so this is my problem. Supoose i have the following model y_(ijk)=beta_j + e_i + epsilon_(ijk) where beta_j are fixed effects, e_i is a ...
    Olivier MartinOlivier Martin
    Mar 29, 2002 at 7:00 pm
    Mar 29, 2002 at 7:00 pm
  • Hint #1, to do any useful transformations on your variables you will probably need to convert them temporarily into character variables (aka strings). Do that with as.character(n$OSUSE) Probably your ...
    Warnes, Gregory RWarnes, Gregory R
    Mar 29, 2002 at 4:56 pm
    Mar 29, 2002 at 4:56 pm
  • Hi can anyone help me in combining GA and hazard regression in R do you thing I can use Gafit packages and survival package or I have to build my own package thanks ...
    Rabiah AhmadRabiah Ahmad
    Mar 4, 2002 at 2:17 pm
    Mar 29, 2002 at 3:59 pm
  • Dear R-help list members, Yesterday, I described a problem that I encountered with the use of expand.model.frame when the model object passed to this function was created without an explicit data ...
    John FoxJohn Fox
    Mar 29, 2002 at 3:58 pm
    Mar 29, 2002 at 3:58 pm
  • Dear all, I dont know where I can find the 'Mean Square Error" function? Any hint would be appreciated. Best Regards -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- ...
    Nader EmamiNader Emami
    Mar 29, 2002 at 2:18 pm
    Mar 29, 2002 at 3:08 pm
  • Dear R-group members, I use: platform i386-pc-mingw32 arch x86 os Win32 system x86, Win32 status major 1 minor 4.1 year 2002 month 01 day 30 language R I try to fit a 2 compartment model. The ...
    1-27206531-0-900004911-27206531-0-90000491
    Mar 27, 2002 at 9:47 am
    Mar 29, 2002 at 2:37 pm
  • Dear R-help, Reading this thread reminds me of a minor nuisance I have. When running example(), objects are created in the global environment. This is OK if I then wanted to look that those objects a ...
    Liaw, AndyLiaw, Andy
    Mar 29, 2002 at 2:09 pm
    Mar 29, 2002 at 2:09 pm
  • I am completely new to R, but have some bg in cs and stat. since R has an interactive programming environment, I thought I could write my command in a file and run it in batch mode in the Rgui. but ...
    Lj22Lj22
    Mar 28, 2002 at 9:02 pm
    Mar 29, 2002 at 12:48 pm
  • Dear all, I'd like to draw a color key beside a graph drawn with xyplot (lattice library). I am aware of the draw.colorkey function (grid library) but don't know how to handle it. Any hint would be ...
    Renaud LancelotRenaud Lancelot
    Mar 28, 2002 at 3:41 pm
    Mar 29, 2002 at 9:18 am
  • Hi to all! Thank you for my previous question on how to make Tcl work. I did as suggested and it works now. I still have a problem when inputing special characters: I have a table with a column ...
    Ignacio PérezIgnacio Pérez
    Mar 29, 2002 at 1:56 am
    Mar 29, 2002 at 6:18 am
  • Dear all, I have a 100 iteration loop. Within each loop, there are some calls to rpart() like: ctl <- rpart.control(maxcompete=0, maxsurrogate=0, maxdepth) temp <- rpart(y~., x, w=wt, ...
    Ji ZhuJi Zhu
    Mar 29, 2002 at 2:07 am
    Mar 29, 2002 at 3:07 am
  • Dear R-help list members, I'm encountering problems using expand.model.frame. To illustrate, consider the function + expand.model.frame(model, "income") + } The data frame Prestige (from the car ...
    John FoxJohn Fox
    Mar 29, 2002 at 1:48 am
    Mar 29, 2002 at 1:48 am
  • I apologize a priori if this is too basic. For my defense, I claim and assert I am reading the manuals. I have found this expression ab = double(length(a) + length(b) - 1))$ab in "writing R ...
    Francisco J MolinaFrancisco J Molina
    Mar 29, 2002 at 12:41 am
    Mar 29, 2002 at 1:12 am
  • Dear friends, I am studying the spatial distribution of trees in a tropical swamp forest in Brazil, and the spatial association between the trees and other forest and non forest elements. These are ...
    Alexandre F. SouzaAlexandre F. Souza
    Mar 28, 2002 at 11:34 pm
    Mar 29, 2002 at 12:27 am
  • The original problem I posed was Let x = real vector of length n y = real vector of length n w = real vector of length m, m typically less than n/2 but can be n z = real vector of length m For w[i], ...
    Frank E Harrell JrFrank E Harrell Jr
    Mar 28, 2002 at 10:54 pm
    Mar 28, 2002 at 10:54 pm
  • Hi all, An offline communication with B. Ripley gives the answer for whoever else may have the similar problem: Run R with a flag: Rgui --internet2 or Rterm --internet2 By the way, as Brian pointed ...
    Jonathan_liJonathan_li
    Mar 28, 2002 at 8:28 pm
    Mar 28, 2002 at 8:28 pm
  • Dear R people, I have been trying to use install.package() to install packages from CRAN. The machine is a Windows 2000 with Pentium 4. The machine operates under a proxy environment. I have followed ...
    Jonathan_liJonathan_li
    Mar 28, 2002 at 7:48 pm
    Mar 28, 2002 at 7:48 pm
  • With the help of J. Baron's search engine, I found an old thread on reduced major axis regression (see below). Prior to my creating a really awkward function to accomplish RMA regression, I was ...
    Martin Henry H. StevensMartin Henry H. Stevens
    Mar 28, 2002 at 7:27 pm
    Mar 28, 2002 at 7:27 pm
  • I installed the foreign library yesterday, and have successfully used the read.xport() function to get data from SAS. This is very helpful. SAS "date" and "datetime" variables become numeric ...
    Don MacQueenDon MacQueen
    Mar 28, 2002 at 7:12 pm
    Mar 28, 2002 at 7:12 pm
  • If anyone has a very fast vectorized method for doing the following I would appreciate some help. I want to avoid outer() to limit memory problems for very large n. Let x = real vector of length n y ...
    Frank E Harrell JrFrank E Harrell Jr
    Mar 28, 2002 at 1:19 pm
    Mar 28, 2002 at 5:04 pm
  • I frequently want to test for differences between animal size frequency distributions. The obvious test (I think) to use is the Kolmogorov-Smirnov two sample test (provided in R as the function ...
    David MiddletonDavid Middleton
    Mar 26, 2002 at 5:23 pm
    Mar 28, 2002 at 4:33 pm
  • I'm clustering using kmeans, and it doesn't accept NA. if NA occurs in a column of the data frame, it occurs in every column, including column 1. they say that a (good) programmer can write FORTRAN ...
    Barber, EricBarber, Eric
    Mar 28, 2002 at 10:30 am
    Mar 28, 2002 at 10:40 am
  • Hello Is there a simple way of fitting a 'smooth curve' to a time series with the additional constraint that the first derivative be not negative? I know that if I choose a "large enough" window for ...
    Claudia TebaldiClaudia Tebaldi
    Mar 27, 2002 at 11:28 pm
    Mar 28, 2002 at 10:04 am
  • I wanted to use th fft function for some convolution purposes and it seems to have a bug: I did the following: sizeX<-361 sizeY<-565 depthX<-23 depthY<-23 ...
    Gabriel FricoutGabriel Fricout
    Mar 28, 2002 at 8:37 am
    Mar 28, 2002 at 8:37 am
  • Is it possible to write the output/results (redirect) to a latex file? Jeff. Jeff D. Hamann Hamann, Donald & Associates, Inc. PO Box 1421 Corvallis, Oregon USA 97339-1421 Bus. 541-753-7333 Cell ...
    Jeff D. HamannJeff D. Hamann
    Mar 20, 2002 at 4:11 pm
    Mar 28, 2002 at 6:35 am
  • I have to store a number of vectors of the same length. I know the length but I do not know the number of vectors. How can I store them as they are created (they are created one by one)? ...
    Francisco J MolinaFrancisco J Molina
    Mar 19, 2002 at 3:08 am
    Mar 28, 2002 at 6:35 am
  • There exists a plot 3d functions (or similar) in R? Thanks, ======================================== Cezar Freitas (ICQ 109128967) IMECC - UNICAMP Campinas, SP - Brasil ...
    Cezar Augusto de Freitas AnselmoCezar Augusto de Freitas Anselmo
    Mar 18, 2002 at 4:42 pm
    Mar 28, 2002 at 6:35 am
  • Hi, I am trying to create a dotplot with dots (to represent a starting date) and lines to represent a length of stay. The code below works except the line I expect from the segments function. Almost ...
    Mitch DawsonMitch Dawson
    Mar 27, 2002 at 10:02 pm
    Mar 27, 2002 at 11:16 pm
  • Is there a (symbol-name foo) in R, which returns the name of a symbol as a string ? === Jan de Leeuw; Professor and Chair, UCLA Department of Statistics; US mail: 9432 Boelter Hall, Box 951554, Los ...
    Jan de LeeuwJan de Leeuw
    Mar 27, 2002 at 9:14 pm
    Mar 27, 2002 at 10:11 pm
  • Hello to everybody ! I don't have a question directly connected with R, but it takes starting point from the use of the R function Krig for kriging interpolation and from the idea of making a ...
    Lecca PaolaLecca Paola
    Mar 27, 2002 at 2:58 pm
    Mar 27, 2002 at 7:36 pm
  • I have a collection of SAS code that helps people review large amounts of data on a regular basis. It does this by using SAS's proc gplot with a "by" statement to prepare as many as 400 (yes, 400) ...
    Don MacQueenDon MacQueen
    Mar 27, 2002 at 5:35 pm
    Mar 27, 2002 at 7:34 pm
  • I am not understanding the functions in R: The following statements work OK if they are invoked in R: reg<-polr(act~.,data=mm) print(summary(reg)) But if they are enclosed in a function, then calling ...
    Boryeu MaoBoryeu Mao
    Mar 27, 2002 at 7:19 pm
    Mar 27, 2002 at 7:19 pm
  • Hi, [I'mm cc-ing r-help on this, since some others might be interested (Tony Rossini is, at least)] Yes, I saw your mail and was wondering about what would be the best approach to do it. It's ...
    Deepayan SarkarDeepayan Sarkar
    Mar 27, 2002 at 6:28 pm
    Mar 27, 2002 at 6:28 pm
  • I would like to create a barchart that has vertical instead of horizontal bars. My goal is something similar to Figure 6.10 (p. 166) in "The Basics of S and S-plus," except for the orientation of the ...
    Waichler, Scott RWaichler, Scott R
    Mar 27, 2002 at 5:44 am
    Mar 27, 2002 at 5:30 pm
  • I'm trying to get a semi-automated approach to processing survey data that I'm getting from mod_survey, an Apache-based web survey tool. It looks like one can do this with enough experience in ...
    Tom ArnoldTom Arnold
    Mar 27, 2002 at 5:14 pm
    Mar 27, 2002 at 5:14 pm
  • When I use read.table I can't get my column names to line up with my data. The data file has survey response data, and each line starts with a unique key field (which should be the row name when it ...
    Tom ArnoldTom Arnold
    Mar 27, 2002 at 4:05 pm
    Mar 27, 2002 at 4:30 pm
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