alt=árvoRe>
Language
The ArvoRe package is a Cost-effectiveness Analysis (CEA)
implementation for R oriented
to compute problems that involve simple decision tree models and Markov models.
It offer a graphic user interface (GUI) developed in Tcl/Tk. This graphical
interface simplifies the decision tree creation task and its manipulation, such
as, nodes addition, probability values definition, node kind configuration,
etc.
Graphics, tables and important summary statistics for the ACE are available
trough of windows, the which ones concentrate them in an unique location. All
graphics and decision tree can be exported to image files using PNG, JPG and
BMP format. Some tables with summary statistics of an CEA problem in this
package can be exported for files in the format CSV (comma separated values) or
TXT (text plain). Other important ArvoRe implementation is
the CEA problems solution that involve Markov chains. These problems are solved
by means of first order Monte Carlo simulation. A model created to a
Cost-effectiveness problem in the ArvoRe can be saved in a
file with extension ARV. The main user preferences settings - as kind of tree
to be exhibited, definitions that should be also exhibited are conserved in
this extension file ARV.
REQUIRIMENTS
·
R 2.6.2 (not compatible with R 2.7.x
because it use use Tcl/Tk 8.5)
To run ArvoRe is
necessary R version 2.6.2. The
posterior versions of R, like 2.7, are
not compatible with ArvoRe,
because it uses Tcl/Tk version 8.5.
·
Packages abind, grid, gplots and
tcltk
ArvoRe requires R in version 2.6.2 and some packages: abind, grid, gplots and tcltk. This
packages must be installed in your system. These packages can be downloaded
from Comprehensive R Archive
Network, CRAN http://www.R-project.org
.
·
Tcl/Tk 8.4 (suggested Activetcl 8.4 to Windows platform)
The ArvoRe package requires
installation of a more complete version of the language Tcl/Tk than that that
accompanies the R originally.
Many Tk's Functionalities used to results tasks and presentation simplification
do not accompany the package tcltk used by R. These functionalities, like to
BWidget, Img and TkTable, are extensions to Tk. For Windows platform, is
recommended use and configuration of Tcl/Tk version 8.4 distributed free of
cost by ActiveState (in http://www.activestate.com), called ActiveTcl 8.4.
DEVELOPMENT
ArvoRe package is developed through a SVN's System in
R-Forge. Anybody can contribute with improvement and/or development of code.
Visit ArvoRe project page.
A more recent copy
of this package can be directly installed in the R using the command
install.packages("arvore",repos="http://R-Forge.R-project.org")
Development
versions, the "latest snapshot", can be acquired below.
REFERENCE /
HELP
You can read the
paper "Implementação de
uma interface gráfica para Análise de Custo Efetividade no R" to solve
instalation problems and know more about Cost-Effectiveness Analysis.
DOWNLOAD
Binary (Windows)
Source code
CONTACT
Isaías Prestes, Suzi Camey
Departamento de Estatística
Universidade Federal do Rio Grande do Sul
Rio Grande do Sul, Porto Alegre
Brasil Av. Bento Gonçalves, 9500
E-mail: isaias.prestes@gmail.com, camey@ufrgs.br
July 04, 2008 10:29:28 PM