similar to: Problem with leaps (long)

I would like to know if someone has done work on trees with multivariate response. I need something like rpart but for vector responses. If someone has code that he/she is willing to share, I would be grateful. If not, even guidelines for writing my own starting from rpart would be welcomed. ft. -- Fernando TUSELL e-mail: Departamento de

I use RODBC and RpgSQL quite a lot to access files stored in another machine under PostgreSQL. Since I am now using files which do not fit into R's memory, I would like to take random samples. What I would like is to issue a query such as SELECT * FROM file WHERE runif > 0.9 with "runif" being a uniformly distributed random number, generated on the fly; but I cannot

Sorry to be such a nuisance but after asking for help with compiling R-1.1.0 on an Intel-based machine I now have another problem on the Alpha DS-10 server which my students use. Compilation and instalation proceed perfectly, but when I invoke R I get: [etdx01:bin]$ ./R Fatal error: The X11 shared library could not be loaded. The error was /home/etptupaf/R/lib/R/bin/R_X11.so: undefined

Is there any way of preserving order of ordered factors when storing a table in PostgreSQL? I have been using PostgreSQL and the RPgSQL package to store a large table with answers such as "Strong disagreement", "Strong agreement", "Mild disagreement". "Mild agreement". When reading the table, such answers are turned into factors, apparently in

I just downloaded R-1.1.0.tgz and attempted installation as usual with ./configure ./make Everything run fine until I hit the following error: gcc -I. -I../../../src/include -I../../../src/include -I../../../src/include/R_ext -I/usr/X11R6/include -I/usr/local/include -DHAVE_CONFIG_H -mieee-fp -D__NO_MATH_INLINES -fPIC -g -O2 -c rbitmap.c -o rbitmap.o rbitmap.c:239: parse error

Porting a package from S-Plus to R I find missing the S-Plus function slice.index(). Before I hack a (probably ugly an inefficient) replacement, has anyone done so? Is there a similar function in R that I have overlooked? Many thanks, ft. -- Fernando TUSELL e-mail: Departamento de Econometr?a y Estad?stica etptupaf at bs.ehu.es Facultad de CC.EE.

I have recently upgraded to R-1.2 and update.packages() gives the following error on my system. Am I doing something wrong? ft. -- Fernando TUSELL e-mail: Departamento de Econometr?a y Estad?stica etptupaf at bs.ehu.es Facultad de CC.EE. y Empresariales Tel: (+34)94.601.3733 Avenida Lendakari Aguirre, 83 Fax:

To keep track of an ongoing programming project, I would like to dump all my functions to individual ASCII files named xxx.R, yyy.R, etc. Presently I do so manually in order to use RCS (on a Linux machine), so I can keep track of all versions, differences, snapshots, etc. Is there any easy way to dump all functions in the workspace to individually named files? Thank you very much for

Running on an Alpha machine which reports (uname -a) OSF1 bsdx01.bs.ehu.es V4.0 878 alpha and using the binary distribution put together by Albrecht Gebhardt (in http://cran.at.r-project.org/bin/osf/osf4.0/tar/alpha_ev5/) I obtain core dumps whenever I try to use package rpart. I have R REMOVE'd the rpart package, downloaded the source rpart_1.0-7.tar from CRAN and

I am trying to compile R on an Itanium machine running Red Hat 7.2 and gcc version 2.96. The build fails with the following symptoms: g77 -fPIC -g -O2 -c cmplx.f -o cmplx.lo g77 -fPIC -g -O2 -c cmplxblas.f -o cmplxblas.lo gcc -shared -L/usr/local/lib -o libRlapack.so dlapack0.lo dlapack1.lo dlapack2.lo dlapack3.lo cmplx.lo cmplxblas.lo -L/usr/local/lib

When passing a list as an argument to a function, I find it convenient to attach it in the first line of th function code, then refer to the components as A, B, etc. rather than as list$A, list$B, etc. If I pass a S4 class object, is there a way to "attach" it, or do I have to refer to the slots as object at A, objetc at B, etc.? I could always make copies, A <- object at A

As of quite recently I experience failures to compile source packages. Messages like * Installing *source* package 'dse1' ... ** libs g77 -mieee-fp -fPIC -g -O2 -c dsefor.f -o dsefor.o gcc -shared -o dse1.so dsefor.o -L/usr/lib/gcc-lib/i486-linux/3.3.3 -L/usr/lib/gcc-lib/i486-linux/3.3.3/../../.. -lfrtbegin -lg2c-pic -lm -lgcc_s -L/usr/lib/R/bin -lR /usr/bin/ld: no se puede

Hi R-list members, Could somebody explain to me the meaning of the '.' in the formula SumTL~. below? I could not find it in the help pages. I'm guessing it is substituted by v1+v2+v3+.. for all independent variables vi. Furthermore, I would like to add interaction effects to the model, is this also possible with the '.'? > library(leaps) >

Below the line is (slightly edited, to remove irrelevant stuff) the transcript of a session in R. Seems that data is read in, but I cannot print or use it. I have looked inside the data directory of MASS, and see that the format of the data is different than the one from other libraries I have. It may be that this particular format is not read correctly, or my setup may be faulty. I

In comparing the results of princomp and prcomp I find: 1. The reported standard deviations are similar but about 1% from each other, which seems well above round-off error. 2. princomp returns what I understand are variances and cumulative variances accounted for by each principal component which are all equal. "SS loadings" is always 1. 3. Same happens

Hi I would like to start by thanking everyone that replied. Thank you for the information, and for the comments about how or why you use it and thankx for the encouragement re my talk.... Please note that I do not claim to have ellicited a reply from all users of R, this is a quick survey not a census. I have tried to break the responces down to the following categories: Where: (hopefully

Some days ago I asked for general methods to access SQL-Databases. Thanks to: Terry Westley [twestley at buffalo.veridian.com], partha_bagchi at hgsi.com, F.Tusell [etptupaf at bs.ehu.es], Michael Lapsley [mlapsley at ndirect.co.uk], Robert Gentleman [rgentlem at jimmy.harvard.edu], Torsten Hothorn [hothorn at statistik.uni-dortmund.de] Several solutions were suggested: (1) using Michael

Colleagues, please help me with the simple question. How can I find R2 and p while doing best subsets regression? Also how can I see B and p for coefficients? Maybe you can advice me detailed manual, because in manual for the package this is not described. Thank you

Hello I am trying to use all subsets regression on a test dataset consisting of 11 trails and 46 potential predictor variables. I would like to use Mallow's Cp as a selection criterion. The leaps function would provide the required output but does not work with this many variables (see below). The alternative function regsubsets should be used, but I am not able to define the function in

Hello, I have encountered a problem which may be arising from details of my data and or the statistics I am trying to do, or may be arising due to the way leaps works internally. Unfortunately, I am not yet savvy enough to tell why. I can say that this statement works (or at least works to the degree I expect): b <- regsubsets(FUND~.,data=all, intercept=TRUE, nbest=1, nvmax=8, really.big=T,