Grokbase Groups R r-help March 2002
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293 discussions - 880 posts

  • Hello list members, I am new to this list and don't know very much about what R can do or how to program it, but I am interested in plotting 4 variables as sequential contour plots (or surface ...
    Kyriakos KachrimanisKyriakos Kachrimanis
    Mar 4, 2002 at 8:47 am
    Mar 4, 2002 at 9:43 am
  • Hi, I am trying to get information about factors from a C-program. As I see, the factors are basically integers with attribute ,,levels''. But unfortunately I am not been able to read the levels ...
    Ott ToometOtt Toomet
    Mar 2, 2002 at 2:43 pm
    Mar 2, 2002 at 4:05 pm
  • Dear all, The MASS library provides a mvrnorm function to generate random numbers from a multivariate normal distribution, similar to S-Plus's rmvnorm, but is there an R-equivalent to pmvnorm, which ...
    John FieldJohn Field
    Mar 2, 2002 at 1:34 pm
    Mar 2, 2002 at 2:44 pm
  • I'm trying to make a connexion beetween Excel and R. It works for simple requests but it seems that complexe functions won't work. Does anybody knows how complexe can be the data set and function ...
    NolwennlmNolwennlm
    Mar 1, 2002 at 3:48 pm
    Mar 2, 2002 at 9:42 am
  • Is there a way of getting a list of indices or something indicating which set of points lqs when doing a regression? The $bestone, seems to return only 2 pts. no matter how good or bad the fit. I ...
    MarkhallMarkhall
    Mar 2, 2002 at 7:33 am
    Mar 2, 2002 at 8:05 am
  • Hi all, In my continuous transition of GLIM to R I try to make a glm with binomial errors. The data file have 3 vectors: h - the factor that is ajusted (have 3 levels) d - number of animais alive ...
    Ronaldo Reis Jr.Ronaldo Reis Jr.
    Mar 1, 2002 at 4:33 pm
    Mar 1, 2002 at 5:17 pm
  • I'm trying to visualise relationships between a number of categorical variables with values 0 and 1. Plot(table(x,y)) ..works well for one relationship, so I want to use this to examine all ...
    PhilPhil
    Mar 1, 2002 at 10:28 am
    Mar 1, 2002 at 1:18 pm
  • Hi all, I try to use the hdf5 package. I downloaded the Windows binary version, and it claims it requires hdf5dll.dll library, so I download the whole hdf5 1.4.3 package from NCSA. Unfortunatelly, it ...
    Philippe GrosjeanPhilippe Grosjean
    Mar 1, 2002 at 11:48 am
    Mar 1, 2002 at 12:17 pm
  • The basic question is: How can I pass configure script command line flags from the R CMD command? Now I try to install the HDF5 package on Linux (SuSE 7.3). I got hdf5 libraries installed in ...
    Raphael ArlittRaphael Arlitt
    Mar 1, 2002 at 10:45 am
    Mar 1, 2002 at 11:04 am
  • Hi, does anyone know of R-implementation of an SVM. We are working on a classification methods for microarray data study and would like to include an SVM classifier in that study. All other methods ...
    Jane FridlyandJane Fridlyand
    Mar 1, 2002 at 12:17 am
    Mar 1, 2002 at 6:55 am
  • Hi! help.search("CORR") points to a function in the "boot" package. I don't know how to use packages. boot.corr(data) does not work. I have 1.4.1 and I installed the R-base and R-recommended rpm ...
    Myriam AbramsonMyriam Abramson
    Mar 1, 2002 at 3:06 am
    Mar 1, 2002 at 4:12 am
  • 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! 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
  • 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
  • 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
  • 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 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
  • 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
  • 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
  • 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
  • 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'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
  • How do I count a vector of periodically counted variances? I have I time series of 99 values and need to count variance of time 1:5 then 2:6 up to 95:99 Thank you. lukas - -- Lukas Kubin lukas.kubin ...
    Lukas KubinLukas Kubin
    Mar 27, 2002 at 3:42 pm
    Mar 27, 2002 at 3:42 pm
  • I have a consulting client with data containing a mixture of continuous, nominal, and ordinal variables, who wishes to do some correlational analyses. Ignoring for the moment whether this is wise or ...
    Michael FriendlyMichael Friendly
    Mar 26, 2002 at 2:49 pm
    Mar 26, 2002 at 2:49 pm
  • Should R/src/library/base/man/Extremes.Rd (where max, min, pmax, pmin are documented) refer to which.min and which.max in the "\seealso" section? e.g. change the \seealso section (line 53) of ...
    Stephen EglenStephen Eglen
    Mar 26, 2002 at 2:38 am
    Mar 26, 2002 at 2:38 am
  • -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in ...
    DivineSAAMDivineSAAM
    Mar 26, 2002 at 1:23 am
    Mar 26, 2002 at 1:23 am
  • I can't get the netCDF functions to work. Any hints? open.netCDF produces the following error message Error in .C("open_netcdf", filename, id = as.integer(verbose)) : C/Fortran function name not in ...
    Richard RoweRichard Rowe
    Mar 25, 2002 at 10:28 pm
    Mar 25, 2002 at 10:28 pm
  • Is there a MARS function available for PC winder users? I know there is a commercial package and a unix shared function available. Thank you for your time. Nancy ...
    Nancy LoNancy Lo
    Mar 25, 2002 at 5:04 pm
    Mar 25, 2002 at 5:04 pm
  • I'm trying to figure out whether there is a simple one or two-pass approach to randomly creating missing values for a set of existing (complete) data. For example, I want to randomly make 10% of the ...
    Marc FeldesmanMarc Feldesman
    Mar 24, 2002 at 5:12 pm
    Mar 24, 2002 at 5:12 pm
  • FEDERAL MINISTRY OF WORKS AND HOUSING FEDERAL SECRETARIAT IKOYI-LAGOS FROM:JARRY MAKOBI ATTN:THE PRESIDENT/CEO TEL: 234-1-7761501 FAX: 234-1-7593963 Dear Sir, ASSISTANCE REQUIRED FOR ACQUISITION OF ...
    JARRY MAKOBIJARRY MAKOBI
    Mar 23, 2002 at 1:59 am
    Mar 23, 2002 at 1:59 am
  • I just tried looking at the documentation on ``Writing R extensions'' using my web-browser. I clicked on the foregoing topic and got the message ``The document contained no data ....'' Sure enough, ...
    Rolf TurnerRolf Turner
    Mar 22, 2002 at 4:53 pm
    Mar 22, 2002 at 4:53 pm
  • I'm trying to use R as a report generator under windows. I have everything working except the printing, which I need to do to a specific printer in the system, under batch conditions. Any thoughts? ...
    Shawn WayShawn Way
    Mar 22, 2002 at 3:47 pm
    Mar 22, 2002 at 3:47 pm
  • [my original message to s-news & r-help is attached ] No one possessed or knew of any S/R code for the sequential t-test. Also it doesn't appear in the SAS index. One or two suggested obtaining the ...
    KINLEY_ROBERTKINLEY_ROBERT
    Mar 22, 2002 at 2:26 pm
    Mar 22, 2002 at 2:26 pm
  • If you explain what radar track data is (for those like me who don't know) and what your needs are more specifically a number of people would probably offer pointers to R packages etc. Reid ...
    Huntsinger, ReidHuntsinger, Reid
    Mar 21, 2002 at 9:21 pm
    Mar 21, 2002 at 9:21 pm
  • Sorry in my previous message I express myself not well: I want to know if the limit for that the value of F is "reasonably probable" is 0.05. In other term, when can we say the the two distribution ...
    Lecca PaolaLecca Paola
    Mar 21, 2002 at 4:35 pm
    Mar 21, 2002 at 4:35 pm
  • Hi to all of you I 'd like to implement a space-time model as it is formulated at Technometrics Vol 22 1980, "A three - stage iterative procedure for space-time modeling" P.E. Pfeifer and S.J ...
    Yiannis KamarianakisYiannis Kamarianakis
    Mar 21, 2002 at 4:01 pm
    Mar 21, 2002 at 4:01 pm
  • Thanks to all that responded. It seems optim() is a good try. I read the man page of optim(). I guess for nice functions I should use method ¿GS or L-BFGS-B ? Thanks again! Mai Zhou ...
    Mai ZhouMai Zhou
    Mar 21, 2002 at 3:03 pm
    Mar 21, 2002 at 3:03 pm
  • Hi guys I'm working with with R1.4.1 on windows I'm trying to import data from the ODBC (Access database) with the library RODBC. Every thing works perfect except that the dates are factors ...
    Beat HugglerBeat Huggler
    Mar 21, 2002 at 8:31 am
    Mar 21, 2002 at 8:31 am
  • Hi, I have a dataframe, y, with 1000 rows and 266 columns. The first column of y is a 2 level factor response; columns 2:266 are each ordinal variables that can take on one of the values 1, 2, or 3 ...
    Michael Lynn FugateMichael Lynn Fugate
    Mar 21, 2002 at 1:06 am
    Mar 21, 2002 at 1:06 am
  • A student pointed out to me the article http://www.wired.com/news/politics/0,1283,51106,00.html describing recent testimony by Patrick Ball, the deputy director of the science and human rights ...
    Douglas BatesDouglas Bates
    Mar 20, 2002 at 7:13 pm
    Mar 20, 2002 at 7:13 pm
  • Hi, how can I comute Wilks Lambda from a repeated measure design with one factor (5 levels)? I think the trick is to use manova(), but I can't figure out how. The data is stored in a data frame ...
    Sven GarbadeSven Garbade
    Mar 20, 2002 at 5:06 pm
    Mar 20, 2002 at 5:06 pm
  • Thanks a lot to everybody for the interest. Now I have solved my downloading problems. Paola. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- ...
    Lecca PaolaLecca Paola
    Mar 20, 2002 at 4:18 pm
    Mar 20, 2002 at 4:18 pm
  • Hi, In the third edition of the MASS book, Chapter 8, Page 252 ~ 253. I tried applying the same technique on using a negative exponential model (as suggested in Exercise 1), and trying to get a ...
    Ko-Kang Kevin WangKo-Kang Kevin Wang
    Mar 19, 2002 at 7:53 pm
    Mar 19, 2002 at 7:53 pm
  • Sorry: I meant the nls package, not nlm (which doesn't exist). Kaspar -- Kaspar Pflugshaupt Geobotanisches Institut Zuerichbergstr. 38 CH-8044 Zuerich Tel. ++41 1 632 43 19 Fax ++41 1 632 12 15 ...
    Kaspar PflugshauptKaspar Pflugshaupt
    Mar 19, 2002 at 5:09 pm
    Mar 19, 2002 at 5:09 pm
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