Contenu connexe Plus de SAKAUE, Tatsuya (20) 1. 40
SAKAUE Akkuş Tatsuya
2011-12-17
Tuesday, December 6, 11 1
2. Agenda
1. R
2.
3.
4.
5. R
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3. Agenda
1. R
2.
3.
4.
5. R
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4. •
• Ross Ihaka & Robert Gentleman (R & R)
• Ross Ihaka and Robert Gentleman. R: A language for data analysis and graphics.
Journal of Computational and Graphical Statistics, 5(3):299-314, 1996.
• http://biostat.mc.vanderbilt.edu/twiki/pub/Main/Je reyHorner/JCGSR.pdf
•
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6. • IBM SPSS Statistics 10 ...
•
•
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7. Excel SPSS ...
•
•
• Excel
•
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10. • Windows: : http://cran.md.tsukuba.ac.jp/bin/windows/base/
• Download R 2.14.0 for Windows
• Mac OS X: http://cran.md.tsukuba.ac.jp/bin/macosx/
• R-2.14.0.pkg (latest version)
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18. •
•
• Windows
•
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19. • Windows
• [ Windows XP] →
• [ Windows 7 ] →
• Mac OS X
• /Applications /Library
Frameworks R. framework CleanApp
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20. • Windows
• START → Program → R → R 2.14.0
• Mac OS X
• /Applications R
R
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21. • Windows Mac OS X
1. q()
2.
3. R
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22. ...
• help(sth)
• seekR (http://seekr.jp/)
• R SEEK (http://www.rseek.org/)
• RjpWiki (http://www.okada.jp.org/RWiki/)
• R-Tips (http://cse.naro.a rc.go.jp/takezawa/r-tips/r.html)
•R (http://aoki2.si.gunma-u.ac.jp/R/)
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23. •
•
• help(sth) !!
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24. Agenda
1. R
2.
3.
4.
5. R
Tuesday, December 6, 11 31
25. Agenda
1. R
2.
3.
4.
5. R
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27. • [Enter]
• > 3+5 [Enter]
• > 10-3 [Enter]
• > 2*3 [Enter]
• > 100/20 [Enter]
• > (12 + 34 -56) * 78 / 90 [Enter]
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30. “I don't know !” by fmgbain http://www.flickr.com/photos/fmgbain/4382010455/
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32. sqrt()
• > sqrt(2)
• > sqrt(144)
• > sqrt(104976)
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33. ( )
•
•q() help(sth)
•
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38. “I don't know !” by fmgbain http://www.flickr.com/photos/fmgbain/4382010455/
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40. “hako”
• > hako <- c(1,2,3,4,5)
• > hako
• c() concatenate/combine
•
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41. c() “<-”
hako <- c(1,2,3,4,5) “<-”
←
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42. + ...
• [Enter]
• [STOP]
• [Esc]
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43. •
• Tab
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44. hako
1 5 5
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46. • > sqrt(hako)
• > log(hako)
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49. •R
•
• q(), help(), sqrt(), log(), c()
•
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50. Agenda
1. R
2.
3.
4.
5. R
Tuesday, December 6, 11 57
51. Agenda
1. R
2.
3.
4.
5. R
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55. ...
•
•
• TOEIC
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56. ...
A 180 75
B 170 65
C 165 60
D 175 70
E 190 80
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57. ...
• Excel
•
→
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58. • ...
•
•
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59. • Windows →
• “MyDocuments”
• Mac OS X →
• Linux up to you...
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60. •
• getwd()
• > getwd()
• setwd()
• > setwd("/Users/sakaue/Desktop/")
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61. • read.csv()
• CSV
• CSV: Comma Separated Value
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62. 1. demo.csv
• XLS/XLSX
• CSV UTF-8
2. > test <- read.csv(“demo.csv”)
3. > test [Enter]
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63. CSV
...
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65. 1. demo.xls
2. > test2 <- read.delim("clipboard")
Mac : read.delim(pipe(“pbpaste”))
3. > test2 [Enter]
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66. > table(test2[,1])
• 1
> mean(test2[,2])
• 2
> hist(test2[,2])
• 2
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67. •
• CSV read.csv()
• or
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68. CSV
Excel
“y2.d175 | Lasershow! Relax!” by B Rosen
http://www.flickr.com/photos/rosengrant/4751386872/
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69. Agenda
1. R
2.
3.
4.
5. R
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70. Agenda
1. R
2.
3.
4.
5. R
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73. 1.
2.
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74. 2
Excel SPSS
... orz
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76. > age <- c(18, 23, 14, 19,
21, 29, 22, 21, 23, 19, 20, 20,
26, 18, 14, 6, 8, 16, 23, 20)
> hist(age)
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78. > score <- c(60, 50, 72, 43, 50,
55, 43, 50, 85, 40)
> words <- c(340, 190, 465, 170,
130, 225,140, 310, 580, 120)
> plot(score,words)
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80. > nns <- c(350, 285, 315, 340, 210,
185, 120, 740, 425, 155)
> ns <- c(365, 570, 645, 540, 645,
665, 880, 550, 410, 585)
> boxplot(nns, ns, names=c("NNS", "NS"))
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81. 1.
2.
3.
twitter, FB
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82. Excel
“y2.d175 | Lasershow! Relax!” by B Rosen
http://www.flickr.com/photos/rosengrant/4751386872/
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83. Agenda
1. R
2.
3.
4.
5. R
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84. Agenda
1. R
2.
3.
4.
5. R
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88. • H0
• H1
• H0 (t, χ2, F )
•
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89. t
•
•R t.test()
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90. t
> like <- c(6,10,6,10,7,8,7,9,10,4)
> dislike <- c(3,5,6,4,4,8,4,5,4,7)
> t.test(like,dislike,var.equal=TRUE)
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91. t
> t.test(like,dislike,var.equal=TRUE)
Two Sample t-test
data: like and dislike
t = 3.3041, df = 18, p-value = 0.003946
alternative hypothesis: true difference in
means is not equal to 0 #
95 percent confidence interval: #
0.9831754 4.4168246
sample estimates:
mean of x mean of y
7.7 5.0
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93. •
•
• A B
•
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94. : “however”
109 347 8 493
[ ] However, ....
[ ] ..., however, ....
[ ] ..., however.
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95. > freq <- c(109,347,8)
> chisq.test(freq,correct=FALSE)
Chi-squared test for given probabilities
data: freq
X-squared = 391.7371, df = 2, p-value < 2.2e-16
# 2
# http://homepage2.nifty.com/nandemoarchive/toukei_kiso/t_F_chi.htm
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96. •
• t
•
• !
• ...
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100. Package
•
• base 1,000
• package
• ex. RMeCab
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102. RMeCab
•
•R MeCab
• R
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103. • RMeCabText() :
• RMeCabFreq() :
• Ngram() : N-gram
• collocate() :
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106. 2,940 1,785 3,780
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107. twitter: @sakaue
e-mail: tsakaue<AT>hiroshima-u.ac.jp
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