R - a language for data analysis and graphics |
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Start R, a system for statistical computation and graphics, with the specified options, or invoke an R tool via the ’R CMD’ interface. R is a language which bears a passing resemblance to the S language developed at AT&T Bell Laboratories. It provides support for a variety of statistical and graphical analyses. R is a true computer language which contains a number of control-flow constructions for iteration and alternation. It allows users to add additional functionality by defin- ing new functions.
Open source program R je komplexný systém na manipuláciu s údajmi, ich spracovanie, analýzu a následné grafické zobrazenie. R je implementáciou jazyka S. Výsledky štatistickej analýzy sú v grafickej podobe zobrazené na displeji, niektoré medzivýsledky sa môžu ukladať alebo zapisovať do súborov. Pre začiatočníkov sa môže zdať, že program R je veľmi zložitý, nie je to však celkom pravda. Hlavná prednosť programu je v jeho flexibilite. Bežné štatistické programy výsledky analýzy zobrazujú priebežne na obrazovke, program R ich však uchováva ako „objekty“, ktoré sa nezobrazujú, ale sú počas práce vždy dostupné. Program R je voľne šírený vďaka licencii GNU~GPL. R
Spustenie R Program R spustíme príkazom R (popis linux distribúcie) [root@ssjh R]# R Obrazovka 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. 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. Ukončenie programu R > q() > Save workspace image? [y/n/c]: Objekt uložiť = y Object neukladať = n Späť do pragramu = c Objekt> objects() # zobrazenie objetov > rm(data1) # zmazanie objektu, dát príklad: > objects() [1] "aa" "beav1" "data" "data2" "fcol" [6] "fill" "i1" "i2" "mycolors" "myline.fit" [11] "mymax" "Ni" "o" "oldpar" "r" [16] "root.fun" "rotsinc" "sinc.exp" "test" "tN" [21] "volcano" "x" "y" "y.fun" "z" [26] "zi" "ziaci" "z0" > Basic operácie, kalkulačka > 2 + 3 * 5 # sčitanie a násobenie > log (10) # logaritmus so základom e=2.718282 > 4^2 # exponent > 3/2 # delenie > sqrt (16) # odmocnina > abs (3-7) # absolútna hodnota > pi # ludolfovo číslo π > exp(2) # exponent Prvý graf > png(file="statsospol.png", bg="transparent") > x=c(235,96,214) > names(x)=c("Plán","1 termín","1+2 termín") > mycolors=c("yellow","blue","black") > barplot(x,col=mycolors,main="Štatistika SOŠ polytechnická Bardejov",sub="stav k 4. apríl 2010") > dev.off() > q()
CRAN mirror
1: Argentina (Buenos Aires) 2: Australia
3: Austria 4: Belgium
5: Brazil (PR) 6: Brazil (RJ)
7: Brazil (SP 1) 8: Brazil (SP 2)
9: Canada (BC) 10: Canada (NS)
11: Canada (ON) 12: Canada (QC 1)
13: Canada (QC 2) 14: Chile
15: China (Beijing 1) 16: China (Beijing 2)
17: China (Hong Kong) 18: Colombia
19: Denmark 20: France (Toulouse)
21: France (Lyon) 22: France (Paris)
23: Germany (Berlin) 24: Germany (Goettingen)
25: Germany (Hannover) 26: Germany (Muenchen)
27: Germany (Wiesbaden) 28: Iran
29: Ireland 30: Italy (Milano)
31: Italy (Padua) 32: Italy (Palermo)
33: Japan (Aizu) 34: Japan (Hyogo)
35: Japan (Tokyo) 36: Japan (Tsukuba)
37: Korea 38: Netherlands
39: New Zealand 40: Norway
41: Poland (Oswiecim) 42: Poland (Wroclaw)
43: Portugal 44: Russia
45: Singapore 1 46: Singapore 2
47: Slovakia 48: South Africa
49: Spain (Madrid) 50: Sweden
51: Switzerland 52: Taiwan (Taichung)
53: Taiwan (Taipeh) 54: Thailand
55: UK (Bristol) 56: UK (London)
57: USA (AZ) 58: USA (CA 1)
59: USA (CA 2) 60: USA (IA)
61: USA (MA) 62: USA (MD)
63: USA (MI) 64: USA (MO)
65: USA (NC) 66: USA (OH)
67: USA (PA 1) 68: USA (PA 2)
69: USA (TN) 70: USA (TX 1)
71: USA (TX 3) 72: USA (WA)
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Voľba miroru (číslo), napr. 23 a enter.
> library('Zelig')
Loading required package: MASS
Loading required package: boot
##
## Zelig (Version 3.4-8, built: 2010-01-20)
## Please refer to http://gking.harvard.edu/zelig for full
## documentation or help.zelig() for help with commands and
## models supported by Zelig.
##
## Zelig project citations:
## Kosuke Imai, Gary King, and Olivia Lau. (2009).
## ``Zelig: Everyone's Statistical Software,''
## http://gking.harvard.edu/zelig.
## and
## Kosuke Imai, Gary King, and Olivia Lau. (2008).
## ``Toward A Common Framework for Statistical Analysis
## and Development,'' Journal of Computational and
## Graphical Statistics, Vol. 17, No. 4 (December)
## pp. 892-913.
## To cite individual Zelig models, please use the citation format printed with
## each model run and in the documentation.
##
>
tags:
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