R-CRAN: alternatif pengolah statistik pengganti SPSS
Anda bisa gunakan R-Project.
Ada Tampilan GUI-nya yakni RKward, tampak seperti screenshot dibawah ini : (Klik Gambar untuk melihat dalam kualitas yang lebih baik)
RKward, GUI untuk R-Project
Di Ubuntu bisa diinstall dari Ubuntu Software Centre atau via terminal dengan perintah :
sudo apt-get install rkward
Setelah itu bisa anda akses lewat menu Application –> Science –> RKward
Menjalankan RKward dari menu Ubuntu
Atau jika anda ingin menggunakan versi console-nya cukup install dengan
sudo apt-get install r-base
Untuk menjalankannya dari terminal, cukup ketikkan :
R
Catatan : R (huruf besar)
Anda akan disodori sebuah lingkungan kerja seperti berikut :
rezaervani@rezaervani-laptop:~/Documents/SCILAB$ R R version 2.10.1 (2009-12-14) Copyright (C) 2009 The R Foundation for Statistical Computing ISBN 3-900051-07-0 R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to redistribute it under certain conditions. Type 'license()' or 'licence()' for distribution details. Natural language support but running in an English locale R is a collaborative project with many contributors. Type 'contributors()' for more information and 'citation()' on how to cite R or R packages in publications. Type 'demo()' for some demos, 'help()' for on-line help, or 'help.start()' for an HTML browser interface to help. Type 'q()' to quit R. >
Untuk keluar cukup ketikkan :
q()
R-Project ini sangat powerfull, karena paket pengolah statistiknya sangat banyak, baik yang tersedia secara default atau dalam bentuk paket yang dapat diinstall dari mirror R-Cran.
Beberapa screenshot dibawah ini menunjukkan default fungsi yang bisa digunakan di RKward :
Fungsi Analisis R yang sudah tersedia di RKward
Fungsi Plotting R bawaan di RKward
Beberapa fungsi Distribusi R yang tersedia di RKward
Anda juga dapat menambahkan ratusan paket statistik lainnya dari R-CRAN Mirror. Berikut daftar CRAN Mirror yang ada di dunia :
Argentina
http://mirror.fcaglp.unlp.edu.ar/CRAN/ Universidad Nacional de La Plata
Australia
http://cran.csiro.au/ CSIRO http://cran.ms.unimelb.edu.au/ University of Melbourne
Austria
http://cran.at.r-project.org/ Wirtschaftsuniversitaet Wien
Belgium
http://www.freestatistics.org/cran/ K.U.Leuven Association
Brazil
http://cran-r.c3sl.ufpr.br/ Universidade Federal do Parana http://cran.fiocruz.br/ Oswaldo Cruz Foundation, Rio de Janeiro http://www.vps.fmvz.usp.br/CRAN/ University of Sao Paulo, Sao Paulo http://brieger.esalq.usp.br/CRAN/ University of Sao Paulo, Piracicaba
Canada
http://cran.stat.sfu.ca/ Simon Fraser University, Burnaby http://mirror.its.dal.ca/cran/ Dalhousie University, Halifax http://probability.ca/cran/ University of Toronto http://cran.skazkaforyou.com/ iWeb, Montreal http://cran.parentingamerica.com/ iWeb, Montreal
Chile
http://dirichlet.mat.puc.cl/ Pontificia Universidad Catolica de Chile, Santiago
China
http://ftp.ctex.org/mirrors/CRAN/ CTEX.ORG http://cran.csdb.cn/ Computer Network Information Center, CAS, Beijing http://mirrors.geoexpat.com/cran/ GeoExpat.Com http://mirrors.xmu.edu.cn/CRAN/ Xiamen University
Colombia
http://www.laqee.unal.edu.co/CRAN/ National University of Colombia
Denmark
http://mirrors.dotsrc.org/cran/ dotsrc.org, Aalborg
France
http://cran.cict.fr/ CICT, Toulouse http://cran.univ-lyon1.fr/ Dept. of Biometry & Evol. Biology, University of Lyon http://mirror.ibcp.fr/pub/CRAN/ CNRS IBCP, Lyon
Germany
http://mirrors.softliste.de/cran/ Softliste.de, Berlin http://ftp5.gwdg.de/pub/misc/cran/ GWDG Goettingen http://cran.rakanu.com/ Rakanu.com, Muenchen http://cran.myamplifiers.com/ Hetzner Online AG, Nuernberg http://ftp.yalwa.org/cran/ Yalwa GmbH, Wiesbaden
Greece
http://cran.cc.uoc.gr/ University of Crete
Indonesia
http://cran.cermin.lipi.go.id/ Indonesian Institute of Sciences
Iran
http://cran.um.ac.ir/ Ferdowsi University of Mashhad
Ireland
http://ftp.heanet.ie/mirrors/cran.r-project.org/ HEAnet, Dublin
Italy
http://rm.mirror.garr.it/mirrors/CRAN/ Garr Mirror, Milano http://cran.stat.unipd.it/ University of Padua http://dssm.unipa.it/CRAN/ Universita degli Studi di Palermo
Japan
http://essrc.hyogo-u.ac.jp/cran/ Hyogo University of Teacher Education http://cran.md.tsukuba.ac.jp/ University of Tsukuba
Korea
http://statlab.korea.ac.kr/R/ Korea University
Mexico
http://cran.itam.mx/ Instituto Tecnologico Autonomo de Mexico
Netherlands
http://cran.xl-mirror.nl/ XL-Data, Amsterdam http://cran-mirror.cs.uu.nl/ Utrecht University
New Zealand
http://cran.stat.auckland.ac.nz/ University of Auckland
Norway
http://cran.uib.no/ University of Bergen
Philippines
http://cran.stat.upd.edu.ph/ University of the Philippines and PREGINET
Poland
http://cran.privatejetscharter.net/ Privatejetscharter.net, Gdansk http://piotrkosoft.net/pub/mirrors/CRAN/ Piotrkosoft – Data Storage Center http://r.meteo.uni.wroc.pl/ University of Wroclaw
Russia
http://cran.gis-lab.info/ GIS-Lab.info
Singapore
http://cran.stat.nus.edu.sg/ National University of Singapore
Slovakia
http://cran.fyxm.net/ FYXM.net, Bratislava http://cran.phphosts.org/ phphosts.org,Bratislava
South Africa
http://cran.ru.ac.za/ Rhodes University
Spain
http://cran.es.r-project.org/ Spanish National Research Network, Madrid
Sweden
http://ftp.sunet.se/pub/lang/CRAN/ Swedish University Computer Network, Uppsala
Switzerland
http://stat.ethz.ch/CRAN/ ETH Zuerich
Taiwan
http://cran.cs.pu.edu.tw/ Providence University, Taichung http://cran.csie.ntu.edu.tw/ National Taiwan University, Taipei http://cran.stat.tku.edu.tw/ Tamkang University, Taipei
Thailand
http://mirrors.psu.ac.th/pub/cran/ Prince of Songkla University, Hatyai
UK
http://www.stats.bris.ac.uk/R/ University of Bristol http://cran.ma.imperial.ac.uk/ Imperial College London http://star-www.st-andrews.ac.uk/cran/ St Andrews University
USA
http://cran.opensourceresources.org/ opensourceresources.org http://cran.cnr.Berkeley.edu University of California, Berkeley, CA http://cran.stat.ucla.edu/ University of California, Los Angeles, CA http://streaming.stat.iastate.edu/CRAN/ Iowa State University, Ames, IA http://software.rc.fas.harvard.edu/mirrors/R/ Harvard University, Cambridge, MA http://watson.nci.nih.gov/cran_mirror/ National Cancer Institute, Bethesda, MD http://cran.mtu.edu/ Michigan Technological University, Houghton, MI http://cran.wustl.edu/ Washington University, St. Louis, MO http://www.ibiblio.org/pub/languages/R/CRAN/ University of North Carolina, Chapel Hill, NC http://cran.case.edu/ Case Western Reserve University, Cleveland, OH http://ftp.osuosl.org/pub/cran/ Oregon State University http://lib.stat.cmu.edu/R/CRAN/ Statlib, Carnegie Mellon University, Pittsburgh, PA http://cran.mirrors.hoobly.com Hoobly Classifieds, Pittsburgh, PA http://www.revolution-computing.com/cran/ Revolution Computing, San Antonio, TX http://cran.sixsigmaonline.org/ sixsigmaonline.org, Houston, TX http://cran.fhcrc.org/ Fred Hutchinson Cancer Research Center, Seattle, WA
Anda dapat menambahkan repository dari RKward di menu Workspace –> Load/Unload Packages. Jendela dialognya seperti ini :
Jendela dialog penambahan paket R-CRAN
Anda bisa langsung menambahkan paket baru di kotak dialog yang tersedia, atau jika anda sudah mengunduh paket R-CRAN, bisa juga langsung diupload lewat jendela tersebut.
Jika anda menggunakan versi console anda bisa mengetikkan di terminal anda :
> chooseCRANmirror()
Akan muncul jendela pemilihan paket seperti tampak pada screenshot berikut :
Jendela pemilihan R-CRAN Mirror repository
Untuk menambahkan sebuah paket di terminal bisa gunakan perintah :
> install.packages(c("pkg1", "pkg2"))
OK, itu sedikit pengantar R-Project sebagai alternatif pengganti SPSS. R-Project ini layak menjadi pilihan mahasiswa dan dosen karena jauh lebih powerfull dan lengkap. Dan yang terpenting, dia bersifat Open Source dan Free.
Selamat mencoba