search for: businessdecision

Displaying 20 results from an estimated 20 matches for "businessdecision".

2008 Apr 14
1
option(expressions) and --max-ppsize
...on stack". Motivation is to determine stack size of a Java vm used to launch R with a given --max-ppsize option. Many thanks in advance, Tobias -- Tobias Verbeke - Consultant Business & Decision Benelux Rue de la r?volution 8 1000 Brussels - BELGIUM +32 499 36 33 15 tobias.verbeke at businessdecision.com
2007 Apr 05
8
package for Matlab
Hallo, does a package for Matlab exist in R? If yes, where can I find it and how can I install it under R? Thanks, Corinna
2007 Jun 03
2
Subscript in axis label
Dear R help list members, I am experiencing difficulty in trying to generate a subscript '2' in an axis label. Although I can get the '2' into a subscript using expression(), R then forces me to leave at least one space between the '2' and the following character. My label is supposed to read 'N2O concentration (ppm)', and the space between the '2' and
2007 Jul 01
2
package with roc, sensitivity, specificity, kappa etc
Dear Guru's, Is there a package (R of course) with programs for diagnostics - roc, sens , spec, kappa etc? Best wishes Fredrik L
2007 Jul 15
1
Complex surveys, properly computed SEs and non-parametric analyses
Can someone direct me to an R function that properly computes standard errors of data obtained from a complex survery design, i.e. perform alnalyses similiar to those that can be performed with SUDAAN, particularly for a non-parametric one-way ANOVA, e.g. signed rank test? Thanks, John John Sorkin M.D., Ph.D. Chief, Biostatistics and Informatics Baltimore VA Medical Center GRECC, University of
2007 Sep 06
1
the survey package
Good afternoon! I'm trying to use the survey package to get a better point of view for my data, but i need some piece of advice: i have some data from a survey which has been stratified using 2 criteria: region(7 values), size of locality(5 values) Using the survey pakage how can i define in a correct way this design (taking into account all 4 strata not just one as in the Survey
2007 May 19
1
(no subject)
Hi friends, does anyone know how we can 'control' R from Visual Studio .NET? e.g. start R, send a set of commands, save the results and open the results using Visual Studio. Thanks Jason Dr. Iasonas Lamprianou Department of Education The University of Manchester Oxford Road, Manchester M13 9PL, UK Tel. 0044 161 275 3485 iasonas.lamprianou at manchester.ac.uk
2007 Jun 07
1
new data frame for loop
I have a data frame with three columns, one coded as a factor. I would like to separate my data out into separate data frames according to the factor level. Below is a simple example to illustrate. I can get R to return the data in the correct format but cannot work out how to get separate data frames. I am a newcommer to programming in R so am not sure what I am missing! Thanks, Emily
2007 Jun 29
2
cbind
Hi, I have a series of return data, a and b are factors. I would like to build a matrix which contains each vector of "returns". I am thinking about something as following, but I guess there should be a sensible way of doing this. returns <- split(return, list(regimef, assetf)) cbind(returns[[1]], returns[[2]],...,returns[[n]]) Could anyone give me some advice? Many thanks. --
2007 Sep 01
1
serialized plot object (for a certain device)
..., is there a way of capturing the binary `jpeg string' representing the plot(1:10) graph, e.g. into a raw vector ? Many thanks in advance, Tobias -- Tobias Verbeke - Consultant Business & Decision Benelux Rue de la r?volution 8 1000 Brussels - BELGIUM +32 499 36 33 15 tobias.verbeke at businessdecision.com
2007 Jul 28
4
beta regressions in R
Good morning, Does anyone know of a package or function to do a beta regression? Thanks, Walt Paczkowski _________________________________ Walter R. Paczkowski, Ph.D. Data Analytics Corp. 44 Hamilton Lane Plainsboro, NJ 08536 (V) 609-936-8999 (F) 609-936-3733
2007 Jun 28
3
: regular expressions: escaping a dot
What's really the problem with: > regexpr( '\.odt$', "xxxxYodt", perl=TRUE ) Warning: '\.' is an unrecognized escape in a character string Warning: unrecognized escape removed from "\.odt$" [1] 5 attr(,"match.length") [1] 4 I know that I could use: > regexpr( '[.]odt$', "xxxxYodt", perl=TRUE ) But it seems to me that
2007 Sep 09
1
format text help pages Windows
...e) and ESS nicely display help pages with some formatting (color code for Rgui and underlining in an ESS help buffer). Many thanks in advance, Tobias -- Tobias Verbeke - Consultant Business & Decision Benelux Rue de la r?volution 8 1000 Brussels - BELGIUM +32 499 36 33 15 tobias.verbeke at businessdecision.com
2007 Apr 07
3
string edit distance
I have a column of words, for example "DOG" "DOOG" "GOD" "GOOD" "DOOR" ... and I am interested in creating a matrix that contains the string edit distances between each pair of words. I am this close -> ' ' <- to writing the algorithm myself (which will allow for different variations on the string edit rules, indels,
2007 Jun 10
1
R logistic regression - comparison with SPSS
Dear R-list members, I have been a user of SPSS for a few years and quite new to R. I read the documentation and tried samples but I have some problems to obtain results for a logistic regression under R. The following SPSS script LOGISTIC REGRESSION vir /METHOD = FSTEP(LR) d007 d008 d009 d010 d011 d012 d013 d014 d015 d016 d017 d018 d069 d072 d073 /SAVE = PRED COOK SRESID
2007 Jun 29
2
\include-mechanism in Sweave?
Dear HelpeRs, I'm very fond of Sweave and I use it as often as possible. It'a a pity I can't use it for larger projects or can I? For instance suppose I have three files file1.rnw, file2.rnw and file3.rnw with Sweave code. Working on file2.rnw I whould like to exclude file1.rnw and file3.rnw temporarily and joining all of them later. This amounts to a mechanism similar to using
2007 Aug 06
2
Makefile for embedding OpenBUGS in R package
...is system call to the CLI is currently the only (non-WINE) way of using OpenBUGS on Linux in batch mode. Many thanks in advance, Tobias -- Tobias Verbeke - Consultant Business & Decision Benelux Rue de la r?volution 8 1000 Brussels - BELGIUM +32 499 36 33 15 tobias.verbeke at businessdecision.com
2007 Apr 20
8
Suggestions for statistical computing course
Dear R-helpers, I am planning a course on Statistical Computing and Computational Statistics for the Fall semester, aimed at first year Masters students in Statistics. Among the topics that I would like to cover are linear algebra related to least squares calculations, optimization and root-finding, numerical integration, Monte Carlo methods (possibly including MCMC), bootstrap, smoothing and
2005 Jan 07
1
Help for "calibration"
Hello, I've tried stl decomposition but I made a mistake I want to make a "calibration on a sample", in french we called it "Redressement d'un échantillon" Thank u [[alternative HTML version deleted]]
2005 Feb 04
2
Bayesian Network
Hello, I would like to use Bayesian Networks with R. I have already installed the package called deal which has succefully unpacked (package 'deal' successfully unpacked and MD5 sums checked) . But when I try to write " <- network (df) I have that kind of error message (be low)! rats <- network(rats.df) Error: couldn't find function "network" Thank u for your