similar to: r-question

Displaying 20 results from an estimated 3000 matches similar to: "r-question"

2003 Jul 19
2
I don't find "fuzzy matching"
hello. I'm a student that work on R.(version 1.7.0) I need to some data frames such as "possum","Beams"'"kiwishade","dolphins",... . I typed help.search("possum") and so on,but the response was "No help files found with alias or title matching 'possum' using fuzzy matching.". I dont know what is "fuzzy matching"
2003 Jul 18
1
what is "fuzzy matching"?
hello. I am a student that work on R. I need to some data frames such as "dolphins","kiwishade","cabbages","beams",... . I typed 'help.seaech("dolphins")' but the response was "No help files found with alias or title matching 'dolphins' using fuzzy matching.". what is "fuzzy matching" and how can I find these
2003 Jun 08
6
Basic question on applying a function to each row of a dataframe
Hi, I have a function foo(x,y) and a dataframe, DF, comprised of two vectors, x & w, as follows : x w 1 1 1 2 2 1 3 3 1 4 4 1 etc I would like to apply the function foo to each 'pair' within DF e.g foo(1,1), foo(2,1), foo(3,1) etc I have tried >apply(DF,foo) >apply(DF[,],foo) >apply(DF[DF$x,DF$w],foo) However, none of the above worked. Can anyone help ?
2003 Jun 13
1
Factorial function in R?
Is there a native factorial function in R [my searches have been fruitless], or do I need to use gamma() function? ********************************************************************* Dr Peter Caley CSIRO Entomology GPO Box 1700, Canberra, ACT 2601 Email: peter.caley@csiro.au Ph: +61 (0)2 6246 4076 Fax: +61 (0)2 6246 4000 *********************************************************************
2003 Jun 13
1
Problem with Rcmd SHLIB
Dear R-helpers, i am trying to make a shared library from a Fortran subroutine, and i therefore used (after reading the documentation): Rcmd SHLIB forfile.f #(R1.70, Win2000) And the error is: " 'perl' is not recognized as an internal or external command,operable program or batch file." So i went ahead and tried to install Perl (from the suggested website in
2003 Jun 25
2
Pairs with different colours
Does anybody know how to make pairs graphics with dots of different colours depending on the value of a categorical variable ? Thanks, Arnaud ************************* Arnaud DOWKIW Department of Primary Industries J. Bjelke-Petersen Research Station KINGAROY, QLD 4610 Australia T : + 61 7 41 600 700 T : + 61 7 41 600 728 (direct) F : + 61 7 41 600 760 **************************
2003 Jul 02
2
user mannual
Dear Sir I have successfuly downloaded R package. Kindly let me know where i will get _/*user mannual*/_ for the same. awaiting a prompt reply with regards Pankaj @#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@#@ Pankaj Kumar Research Scholar Climatology & Hydrometeorology Divison Indian Institute Of Tropical Meteorology Homi Bhabha Road, Pune-411008 India Phone No. +91-20-5893600 Ext. 361
2003 Jul 08
2
exporting help
i need step by step directions on how to export a text file into the r file
2003 Jul 10
1
Simple linear regression
Dear all, My friend wants to fit a model of the type z = a x^n y^m + b, where x, y, z are data and a, b, n, m are unknown parameters. How can he transform this to fit in the linear regression framework? Any help would be appreciated. With regards, Gorazd Brumen -- Mail 1: gbrumen at student.ethz.ch Mail 2: gorazd.brumen at fmf.uni-lj.si Tel.: +41 (0)1 63 34906 Homepage:
2003 Jul 17
1
Rpart question - labeling nodes with something not in x$frame
I have a tree created with tr.hh.logcas <- rpart(log(YCASSX + 1)~AGE+DRUGUSEY+SEX+OBSXNUM +WINDLE, xval = 10) I would like to label the nodes with YCASSX rather than log(YCASSX + 1). But the help file for text in library rpart says that you can only use labels that are part of x$frame, which YCASSX is not. Is there a way to do what I want? Thanks in advance Peter Peter L. Flom, PhD
2003 Aug 01
1
(no subject)
> Hello, > My question is very simple. I have installed R from the internet and I want to use it to analyse my data set. It seems that R is not able to make the > connection when I use the read.table () function since it probably doesn't know where is the required file. Where am I suppose to save my file ? > Thanks > > Marc-Antoine Vaillant > Actuarial Analyst > Les
2003 Aug 07
2
function "lme"
Thanks to everyone who replied to my first problem. Here is the second one: Is the function "lme" (Mixed Model) also in a foreign library(shouldnt, as this is a basic statistical function)? I am trying to use lme in R and it replies that it couldnt find the function lme...weird... Thanks for replying!
2003 Aug 11
2
default directory RGui for windows NT
Hello, Can anyone tell me how to change the default directory in RGui for windows NT? Thanx, Roy
2003 Aug 12
1
Princomp function in R
Hi, I want to use Princomp function in R, but com up an error as " Error: couldn't find function "princomp" ", can you help me resolve this problem? Thanks, Jixin Dai, Ph.D
2003 Sep 04
1
ANOVA/MANOVA
Hello, I have to do an ANOVA (or is it a MANOVA) with 6 Variables (called HsL, LsH, Hp, Lp, G, and) and 6 categories (OQ, Go, RC, AV, CC, Sk), the examples in the literature couldn't help me so far. Who can help me?? Thank Britta
2003 Sep 11
2
Sorting
What is the best way to sort a dataframe? For example, how would I go about sorting a dataframe (with variables V1-V5) by ascending V1, V2 and descending V3 while retaining V4 and V5. Also, is there a relatively easy way by which to re-order my columns? Thank you for your time. Marc Marc Zodet [[alternative HTML version deleted]]
2003 Oct 02
1
(no subject)
Dear Sir, I am system administrator for sun solaris 2.8. I have no idea about the functioning of the R software. I had installed. I tried testing some of the programs and functions. I read in the manual that plot(x,y) functions automatically generates a graphical window and plot. that does not happens in my installation. Please help me in this regard yours sincerely. Arunkumar
2003 Oct 06
2
installation of R
Hi, I wish to install R on my computer but I do not know how to do this. I have a Windows ME. Please advise on how to install R. Thank you. Stefanie [[alternative HTML version deleted]]
2003 Jul 23
3
Boosting, bagging and bumping. Questions about R tools and predictions.
I'm interested in further understanding the differences in using many classification trees to improve classification rates. I'm also interested in finding out what I can do in R and which methods will allow prediction. Can anybody point me to a citation or discussion? Specifically, I want to classify remotely sensed imagery where training data is extracted on class membership by the user.
2003 Aug 13
3
Books for R
As a newbie to R, I need to learn my way around (no previous experience of S).What books, doc for R are recommended? I'm interested primarly in non linear regression and process modelling (and have downloaded the R documentation from the site). Thanks for all tips Anne