R&RStudio入門

＜Rのインストールから簡単な操作を実践＞

~ Rの概要と使い方を学びます ~

・RとR studioの紹介と使い方
・ベーシックなスクリプトを書いてみる
・CSVを読み込んで分析の準備をしよう

Transcript

1. R & R STUDIO TUTORIAL R BUSINESS ANALYSIS Wi-Fi SSID: Pass:
2. R Business Analysis ͻͱ·ͣࣗݾ঺հ • ήʔϜ։ൃͯ͠·͢ • ࠷ۙ͸ओʹQA • R ྺ • 1೥൒ • ؁ౘ • ͋Θͤͯɺߚ஡΋ • స৬૬ஊड෇த!! @hujuu
3. R Business Analysis ࣮຿ʹ׆͖ΔܗͰRΛֶͿ • ೔ৗۀ຿Ͱσʔλ෼ੳΛ͍ͯ͠Δ͕ɺֶͼ͋͏؀ڥ ͕ͳ͘ࠔ͍ͬͯΔ • σʔλ෼ੳπʔϧͱͯ͠,ʮ R ʯΛݕ౼͍ͯ͠Δ • ઐ໳ੑ΍ϓϩάϥϛϯάεΩϧʹدͬͨษڧձͰ͸ ͳ࣮͘຿ʹ௚݁͢Δσʔλ෼ੳྗΛߴΊ͍ͨ
4. R Business Analysis R͸ͲΜͳݴޠʁ ౷ܭղੳ޲͚ͷϓϩάϥϛϯάݴޠ ୭Ͱ΋࢖͑Δʂ ແྉͰ Windows ʹ΋ Mac ʹ΋ରԠ ͍ͭͰ΋࢖͑Δ গͳ͍ίʔυͰ෼ੳ݁Ռ΍άϥϑΛૉૣ͘ग़ྗ 4
5. R Business Analysis • ॲཧ଎౓͕༏Ε͓ͯΓɺϏοάσʔλΛ෼ੳ͢Δࡍʹޮ཰త • ExcelͰ͸Ή͔͍ͣ͠౷ܭ෼ੳ͕ग़དྷΔ • ྫ : Ϋϥελʔ෼ੳ, όεέοτ෼ੳ(ΞιγΤʔγϣϯ෼ੳ) • ༷ʑͳύοέʔδΛ׆༻͢Δ͜ͱͰ෼ੳͷ෯͕޿͛ΒΕΔ • άϥϑͷඳըʹڧ͍ • ggplot2ͰͷάϥϑԽ͸ࣗ༝౓͕ߴ͘ɺࢹೝੑ͕ߴ͍ ɹɹɹͷओͳϝϦοτ
6. R Business Analysis ൺֱ಺༰ OS Mac,Windows,Linux WindowsϝΠϯ Macͩͱ෼ੳػೳ͕ෆࣗ༝ ॲཧ଎౓ ˚ X ѻ͑Δσʔλྔ ʓ (150ສߦͷಡΈࠐΈ΋Մೳ) X (1,048,576 ߦɺ16,384 ྻ) ֦ுੑ ʓ ˚ GUI ˚ ʓ Ձ֨ ແྉ ༗ྉʢ݄਺ઍԁʙʣ ར༻༻్ ౷ܭղੳ දܭࢉ΍ࢿྉ࡞੒ͳͲଟ༷
7. R Business Analysis ɹɹɹͷΠϯετʔϧ 1. CRANʢThe Comprehensive R Archive NetworkʣʹΞ Ϋηε https://cran.r-project.org/ 2. ࢖༻͍ͯ͠ΔOSʹ͋ΘͤͯRͷΠϯετʔϥʔΛμ΢ϯ ϩʔυ ύοέʔδ͕ಈ͔ͳ͍͜ͱ͕ແ͍Α͏ʹ࠷৽൛Λ 3. μ΢ϯϩʔυͨ͠ϑΝΠϧΛ։͍ͯΠϯετʔϧ
8. R Business Analysis
9. R Business Analysis αϯϓϧίʔυ 2 ^ 5 a <- 100 b <- 2 a * b list <- c(2,4,6,8,10) list
10. R Business Analysis ͷΠϯετʔϧ 1. ͍ΘΏΔ RͷIDE (౷߹։ൃ؀ڥ)Ͱ͢ɻ εΫϦϓτϑΝΠϧɺ࣮ߦconsoleɺάϥϑεϖʔεɺ ಡΈࠐΜͩσʔλͷҰཡͳͲ͕ݟ΍͘͢഑ஔ͞Ε·͢ 2. R studioͷΠϯετʔϥΛμ΢ϯϩʔυ https://www.rstudio.com/products/rstudio/download/ 3. μ΢ϯϩʔυͨ͠ΠϯετʔϥΛ։͍ͯΠϯετʔϧ
11. R Business Analysis
12. R Business Analysis • ೖྗิॿ͕ڧ͍ • άϥϑͷΞ΢τϓοτ͕͠΍͍͢ • ΤσΟλͷจࣈ৭ͱഎܠΛฤू͠ ͯɺݟ΍͍͢ઃఆʹͰ͖Δ • ෳ਺ͷεΫϦϓτϑΝΠϧΛλϒͰ ։͍͓͚ͯΔ • ύοέʔδϦετͷӾཡ΍σΟϨΫ τϦϑΝΠϧͷ֬ೝͳͲ͕Ͱ͖Δ ͷϝϦοτ
13. R Business Analysis άϥϑΛॻ͍ͯΈΑ͏ʂ x <- 1:10 y <- 1:10 plot(x, y) # x࣠Λ10͔Β1ͷฒͼํʹ͢Δ plot(x, y, xlim=c(10,1))
14. R Business Analysis ࡞ۀσΟϨΫτʹ͍ͭͯ • σʔλ΍ϓϩάϥϜͷ ಡΈࠐΈ,σʔλͷॻ͖ ग़͠Λ͢Δ৔ॴ͕࡞ۀ σΟϨΫτϦ • ϑΝΠϧࢦఆ͕͠΍͍͢ Α͏ʹมߋ͓ͯ͘͠
15. R Business Analysis CSVσʔλΛಡΈࠐΜͰΈΑ͏ʂ # ࡞ۀσΟϨΫτϦʹ͋ΔCSVΛಡΈऔΔ read.csv("kakei_201609.csv") # ࡞ۀσΟϨΫτϦʹ͋ΔCSVΛಡΈࠐΉ data <- read.csv("kakei_201609.csv") # ಡΈࠐΜͩσʔλςʔϒϧͷ๯಄Λදࣔ head(data)
16. R Business Analysis جຊతͳؔ਺Λ࢖ͬͯΈΑ͏ʂ # σʔλϑϨʔϜͷฏۉ஋ɺதԝ஋ͳͲΛ·ͱΊͯग़͢ summary(data) # ྻΛࢦఆͯ͠ɺαϚϦʔΛදࣔ͢Δ summary(data$ফඅࢧग़) # ಡΈࠐΜͩσʔλςʔϒϧͷྻ໊Λදࣔ names(data)
17. R Business Analysis ͞Βʹ…Α͘࢖͏ศརͳؔ਺Ұཡ ؔ਺ max(x) min(x) mean(x) median(x) sum(x) ҙຯ ࠷େ஋ ࠷খ஋ ฏۉ தԝ஋ ૯࿨
18. R Business Analysis ๮άϥϑΛॻ͍ͯΈΑ͏ʂ # άϥϑͰ೔ຊޠΛදࣔ͢Δઃఆ par(family = "HiraKakuProN-W3") # ฏۉ৞਺๮άϥϑΛඳը͢Δ barplot(data$ڭཆޘָ, names.arg = data$༻్෼ྨ, las = 3)
19. R Business Analysis E N D