Grokbase Groups R r-help January 2008
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781 discussions - 2,483 posts

  • Hi all, I'm giving a talk in a few days to a group of psychology faculty and grad students re the R statistical language. Most people in my dept. use SAS or SPSS. It occurred to me that it would be ...
    Matthew KellerMatthew Keller
    Jan 15, 2008 at 7:45 pm
    Jan 21, 2008 at 7:08 pm
  • Hello. I am posting this on behalf of a student in my class. I have been introducing them to R. I suspect that the problem I need help with is not so much an R issue, but a MAC config issue, but I ...
    Kevin E. ThorpeKevin E. Thorpe
    Jan 23, 2008 at 2:22 pm
    Jan 25, 2008 at 4:43 pm
  • hello all, when I start up the R and I execute o follow code: I have two different behaviours: (a) - when I start up R again by "double click" in the file TEST.RData; (b) - when I start up R and load ...
    Cleber Nogueira BorgesCleber Nogueira Borges
    Jan 26, 2008 at 6:01 pm
    Jan 28, 2008 at 1:36 pm
  • Dear All, I am trying to solve the following maximization problem with R: find x(t) (continuous) that maximizes the integral of x(t) with t from 0 to 1, subject to the constraints dx/dt = u, x(0) = ...
    Paul SmithPaul Smith
    Jan 7, 2008 at 12:05 am
    Jan 9, 2008 at 1:53 pm
  • Dear all, Happy new year! I posted a very similar question a few days ago, but probably too cluttered. Here is a tidy, minimal version: I want to make a package, with a data.frame d and a function f ...
    baptiste Auguiébaptiste Auguié
    Jan 1, 2008 at 9:20 am
    Jan 21, 2008 at 5:33 pm
  • hi; When I first started looking at R code, I thought that the <- notation for assignment made the code less readable (and I still do). Then I found that now one can use "=" in place of "<-" for ...
    Nasser AbbasiNasser Abbasi
    Jan 13, 2008 at 10:41 pm
    Jan 14, 2008 at 8:17 pm
  • Hi the list. I do not understand the philosophy behind numeric and integer. - 1 is numeric (which I find surprising) - 2 is numeric. - 1:2 is integer. Why is that ? Christophe
    Christophe GenoliniChristophe Genolini
    Jan 28, 2008 at 9:05 pm
    Jan 30, 2008 at 3:17 pm
  • Thanks to all who replied either privately or on the list. I have summarized the answers at the beginning of the following document: http://pbil.univ-lyon1.fr/members/lobry/R/diaposcam.pdf Let me ...
    Jean lobryJean lobry
    Jan 27, 2008 at 10:15 am
    Jan 30, 2008 at 7:57 am
  • What I want to do is: 1, creat a text box, insert text into that box. 2, select chunk of of the text by mouse, and link it to a lable. so I would like a way to get that chunk of text. Can I do such ...
    RongguiRonggui
    Jan 21, 2008 at 9:02 am
    Jan 24, 2008 at 3:15 am
  • Dear All, I am new to odfWeave and was wondering if there are something similar to the xtable package that can automatically convert model coefficients into LaTeX/ODT tables? More generally, how do ...
    宋时歌宋时歌
    Jan 12, 2008 at 5:51 pm
    Jan 19, 2008 at 2:30 pm
  • Dear all I want to display 4 dimensional space by some suitable way. I searched CRAN and found miscellaneous 3 dim graphics packages which I maybe can modify but anyway I am open to any hint how to ...
    Petr PIKALPetr PIKAL
    Jan 10, 2008 at 2:36 pm
    Jan 14, 2008 at 5:02 pm
  • Hi all, Reading the wikipedia page on R, I stumbled across the following: http://fluff.info/blog/arch/00000172.htm It does seem interesting that the C execution is that much slower from R than from a ...
    Gustaf RydevikGustaf Rydevik
    Jan 9, 2008 at 3:25 pm
    Jan 10, 2008 at 3:38 pm
  • I need arguments pro-S-PLUS and against SAS for a meeting I will have next week. S-Plus is (90 - 99)% compatible with R, so using S-Plus will make things much easier for everyone. But I can't use ...
    Alberto MonteiroAlberto Monteiro
    Jan 4, 2008 at 5:13 pm
    Jan 9, 2008 at 2:48 pm
  • Dear R-help mailing list readers, After some discussion among R foundation members (and friends), we have agreed that ``the spammer mafia (*)'' has momentarily won a battle: After more than ten years ...
    Martin MaechlerMartin Maechler
    Jan 30, 2008 at 6:05 pm
    Jan 31, 2008 at 2:38 pm
  • Hi everyone, I am sure that this question has been asked here some time ago but I do not remember the answer and was unable to find it in the archives... Below is my question: suppose that I have a ...
    Moshe OlshanskyMoshe Olshansky
    Jan 21, 2008 at 11:36 pm
    Jan 22, 2008 at 4:06 pm
  • I really have headache when I do google search for information about "R". Any tricks or tips? thx.
    Wensui LiuWensui Liu
    Jan 22, 2008 at 6:13 am
    Feb 5, 2008 at 9:55 am
  • specifically, imagine we have: fooStack <- list() for ( i in 1:5 ) fooStack[[i]] <- list() and we have a function: fooModifier <- function( foo ) { foo$bar <- "bar" } then, if we invoke fooModifier, ...
    Peter WaltmanPeter Waltman
    Jan 3, 2008 at 9:35 pm
    Jan 4, 2008 at 9:31 am
  • Dear R-community, I created 5 different xyplots and graphed all of them with the print command on one page (e.g. print(graph1, split=c(1,1,1,5), more = T) ... print(graph5, split=c(1,5,1,5), more =T) ...
    JeitelJeitel
    Jan 30, 2008 at 6:28 am
    Jan 30, 2008 at 8:44 pm
  • hey all greetings hey all am an engineering student...and am trying to learn R i am trying to automate reading a specific type of file...and perform certain functions...but i want to omit lines in ...
    MrafiMrafi
    Jan 28, 2008 at 10:10 am
    Jan 28, 2008 at 4:35 pm
  • Does anyone know of a test for stationarity of a time series, or like all ordination techniques it is a qualitative assessment of a quantitative result. Books, papers, etc. suggestions welcome ...
    Stephen sefickStephen sefick
    Jan 21, 2008 at 7:36 pm
    Jan 24, 2008 at 1:06 pm
  • Hi. Suppose I have a vector that I partition into disjoint, contiguous subvectors. For example, let v = c(1,4,2,6,7,5), partition it into three subvectors, v1 = v[1:3], v2 = v[4], v3 = v[5:6]. I want ...
    Talbot KatzTalbot Katz
    Jan 7, 2008 at 4:18 pm
    Jan 8, 2008 at 12:02 am
  • Hello, I'm having problems reading a shapefile with read.shape (maptools). I'm absolutely sure my file is there, but I get "no such file". The wd is ok, since read.table for example does find the ...
    PieterprovoostPieterprovoost
    Jan 27, 2008 at 6:29 pm
    Jan 29, 2008 at 5:19 pm
  • We need a two-way non-parametric ANOVA in order to analysis properly some ecological data, do you know any reference in R? or how to do it? Thank you very much All the best diana -- View this message ...
    Diana PerdigueroDiana Perdiguero
    Jan 23, 2008 at 10:59 am
    Jan 23, 2008 at 10:52 pm
  • I want to use a function as an argument to ingtegrate it twice. See the following (senseless) example of a double integration: test<-function(sf,lo,up,rest) { innerFkn<-function(sf,lo) { ...
    Thomas SteinerThomas Steiner
    Jan 22, 2008 at 10:30 am
    Jan 23, 2008 at 4:10 pm
  • Hello, I have 2 variables in my sample Data: Data$A and Data$B Variable Data$A can assume values: 1, 2, 3, and 4. Variable Data$B identifies my cases and can assume values: 1 and 2. I need to recode ...
    Dimitri LiakhovitskiDimitri Liakhovitski
    Jan 22, 2008 at 5:25 pm
    Jan 23, 2008 at 2:13 am
  • I'm finalizing development of a package that will include a vignette. Without the vignette, the package builds fine with no warnings and is ready for distribution. Now, I am following the directions ...
    Doran, HaroldDoran, Harold
    Jan 21, 2008 at 8:45 pm
    Jan 22, 2008 at 2:04 pm
  • R-users, Is there a function for ceiling to the nearest ten? a <- 1:10*4 a [1] 4 8 12 16 20 24 28 32 36 40 The resulting vector should look like this ("ceiling to the nearest ten") [1] 10 10 20 20 20 ...
    Lauri NikkinenLauri Nikkinen
    Jan 14, 2008 at 5:17 pm
    Jan 14, 2008 at 6:59 pm
  • I seem to have a problem getting latex (Hmisc) to work. Any suggestions as to what I am doing wrong? Thanks library(Hmisc) aa <- data.frame(aa=1:10, bb=rnorm(10, 5, 2), cc=rnorm(10, 20, 4)) rr <- ...
    John KaneJohn Kane
    Jan 13, 2008 at 6:05 pm
    Jan 14, 2008 at 2:16 pm
  • Hi all R users, Can anyone please let me know how to do the moving average with R? With regards, Abu Free games, great prizes - get gaming at Gamesbox.
    Abu NaserAbu Naser
    Jan 7, 2008 at 2:31 pm
    Jan 7, 2008 at 4:12 pm
  • i'm putting the final touches on a package that i'm developing and i noticed that if i detach the package, and then re-build & re-install it (using R CMD) then I can't get the newer version of the ...
    Harte, Thomas PHarte, Thomas P
    Jan 14, 2008 at 11:48 pm
    Feb 6, 2008 at 4:21 pm
  • Dear All, Is there a emacs/xemacs for unix without compiling it? If it is possible, I prefer something that I can use immediately after putting it on the unix server. Is it possible or am I too ...
    Wensui LiuWensui Liu
    Jan 31, 2008 at 8:21 pm
    Jan 31, 2008 at 9:21 pm
  • Dear all, I would like to create a stacked area chart to show the development of species biomass over time. Since it is intended for publication I need to prepare in black and white. I have tried to ...
    Markus DidionMarkus Didion
    Jan 29, 2008 at 3:12 pm
    Jan 30, 2008 at 9:39 pm
  • Dear All, I am currently using R in Windows PC with a 2 GB of RAM. Some pretty large datasets are expected soon, perhaps in an order of several GB. I am facing a similar situation like Ralph, either ...
    Jin LiJin Li
    Jan 23, 2008 at 11:08 pm
    Jan 29, 2008 at 7:53 pm
  • Hi, netters, First of all, thanks a lot for all the prompt replies to my earlier question about "merging" data frames in R. Actually that's an equivalence to the "join" clause in mysql. Now I have ...
    ZhihualiZhihuali
    Jan 26, 2008 at 11:45 pm
    Jan 27, 2008 at 2:34 am
  • Dear Contributors: I have two vectors x and z, and I want to display the histograms of both vectors in the same graph, x in red bars, z in blue bars. If you have any clue on how to do that, I will be ...
    Juan Pablo FededaJuan Pablo Fededa
    Jan 24, 2008 at 2:43 pm
    Jan 25, 2008 at 8:26 pm
  • Dear everybody! I am making a graph in R and employ pstoedit to expot the .pdf-output to .svg. When I open the .svg with firefox I get the .svg-code shown wit the following header: "Mit dieser ...
    Mag. Ferri LeberlMag. Ferri Leberl
    Jan 14, 2008 at 6:10 pm
    Jan 25, 2008 at 9:27 am
  • Hi all, I am trying to install the package "GEOquery" in unix. I have downloaded the standard version of R and this package is not contained in the default. I know that I can select repositories ...
    Eleni ChristodoulouEleni Christodoulou
    Jan 22, 2008 at 9:26 am
    Jan 22, 2008 at 5:53 pm
  • It a trivial point but can anyone tell me why gcolor is not working here? I thought that I should be getting the letters in red. lcolor seems to work just fine. aa <- c(3,6,3,5,8) lbs <- LETTERS[1:5] ...
    John KaneJohn Kane
    Jan 19, 2008 at 7:48 pm
    Jan 19, 2008 at 10:17 pm
  • Hi all, Can anyone tell me why I am getting different results in calculating SD of 2 numbers ? [1] 0.2121320 # why it is different from 0.15? Regards, Send instant messages to your online friends ...
    Ron MichaelRon Michael
    Jan 16, 2008 at 8:14 am
    Jan 16, 2008 at 5:08 pm
  • Hi, I am trying to calculate a distance matrix on a binary data frame using dist.binary() {ade4}. This is the code I run and the error I get: (a+b+c+d) Error in if (any(df < 0)) stop("non negative ...
    Marc MoraguesMarc Moragues
    Jan 10, 2008 at 10:48 am
    Jan 14, 2008 at 4:30 pm
  • Hi I have the problem with fitting curve to data with lm and glm. When I use polynominal dependiency, fitted values from model are OK, but I cannot recive proper values when I use coefficents to ...
    Jarek JasiewiczJarek Jasiewicz
    Jan 12, 2008 at 4:50 pm
    Jan 13, 2008 at 5:27 pm
  • i'm trying to learn R. i have no programing experience. i tried to add on a package and just picked "yags". i can't get it to work or get any help. --- Warning in install.packages("yags") : argument ...
    JpoloJpolo
    Jan 11, 2008 at 12:06 am
    Jan 11, 2008 at 3:03 am
  • I have a dataframe say: date price_g price_s 0.34 0.56 0.36 0.76 . . . . . . and so on. say, 1000 rows. Is it possible to add two columns to this dataframe, by computing say diff(log(price_g) and ...
    Vishal BelsareVishal Belsare
    Jan 10, 2008 at 7:16 am
    Jan 10, 2008 at 6:27 pm
  • Hi, I have a data.frame with the following variable: $ xx :Factor w/ 66 levels "01.02.2006","01.03.2006",..: 3 3 3 3 3 3 3 3 3 now I?d like use "as.date" on it - if I comprehend the instructions on ...
    KongaKonga
    Jan 9, 2008 at 2:14 pm
    Jan 10, 2008 at 4:15 pm
  • Hi Everyone, I have some data that predicts both a nominal and ordinal response variable. I was wondering what packages in R would help me analyze the data? I was also curious if anyone could ...
    MaxMax
    Jan 2, 2008 at 8:36 pm
    Jan 3, 2008 at 8:55 pm
  • Hi all, I'm not quite sure if this is a feature or a bug or if I just fail to understand the documentation: If I use cor() with pairwise.complete.obs and method=pearson, the result is a scalar: - ...
    Hilmar BergerHilmar Berger
    Jan 2, 2008 at 5:39 pm
    Jan 3, 2008 at 10:33 am
  • Dear all, I have two variables, y and x. It seems that the relationship between them is Piecewise Linear Functions. The cutpoint is 20. That is, when x<20, there is a linear relationship between y ...
    Zhijie zhangZhijie zhang
    Jan 1, 2008 at 3:24 pm
    Jan 3, 2008 at 4:13 am
  • #After spending the entire day working on this question, I have decided to reach out for support: #I am trying to overlay a densityplot from one data set over a histogram of another, if I were to ...
    Erin SteinerErin Steiner
    Jan 15, 2008 at 1:30 am
    Apr 1, 2008 at 8:34 pm
  • Dear all, How can I plot the number of observations per box in a boxplot. Many thanks, Bernard ---------------------------------
    Marc BernardMarc Bernard
    Jan 30, 2008 at 11:42 am
    Jan 30, 2008 at 5:15 pm
  • [1] 2593419 2130220 6198197 1673888 1980000 1784732 2052120 -7490228 -5275000 function(x) { fu = x %*% t(pos) } port = apply(ret, 1, fu) [1] 81 500 My desire is to get port as a vector with length ...
    Megh DalMegh Dal
    Jan 30, 2008 at 7:20 am
    Jan 30, 2008 at 1:01 pm
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708 users for January 2008

Gabor Grothendieck: 100 posts Professor Brian Ripley: 98 posts Duncan Murdoch: 63 posts Henrique Dallazuanna: 55 posts John Kane: 49 posts Peter Dalgaard: 45 posts Jim holtman: 44 posts Hadley wickham: 38 posts Greg Snow: 37 posts Tom soyer: 29 posts Gabor Csardi: 28 posts Charles C. Berry: 27 posts Uwe Ligges: 26 posts Marc Schwartz: 25 posts David Winsemius: 23 posts Frank E Harrell Jr: 23 posts Gavin Simpson: 23 posts Petr PIKAL: 19 posts Richard Cotton: 19 posts Wensui Liu: 19 posts
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