データフレームと代表値 / Data frame and representative values

早稲田大学大学院経営管理研究科「企業データ分析」2024 冬のオンデマンド教材 第2回で使用したスライドです。

Transcript

1. Boxes and whiskers — generated by Stable Diffusion XL v1.0 2024 3 (WBS) 2024 3 — 2024-11 – p.1/18
2. https://speakerdeck.com/ks91/collections/corporate-data-analysis-2024-winter 2024 3 — 2024-11 – p.2/18
3. ( 20 ) 1 • 2 R • 3 • 4 5 6 ( ) 7 (1) 8 (2) 9 R ( ) (1) 10 R ( ) (2) 11 R ( ) (1) 12 R ( ) (2) 13 GPT-4 14 GPT-4 15 ( ) LaTeX Overleaf 8 (12/16 ) / (2 ) OK / 2024 3 — 2024-11 – p.3/18
4. 2024 3 — 2024-11 – p.4/18
5. RStudio (1) Project New Project. . . (2) New Directory → New Project (3) Directory name Create Project ( ) 2024 3 — 2024-11 – p.5/18
6. ( ) ( ) ( ) Excel 2024 3 — 2024-11 – p.6/18
7. : > <- c(" ", " ", " ") > <- c(80, 78, 90) > <- c(88, 72, 95) > <- data.frame( , , ) > # 1 80 88 2 78 72 3 90 95 > [3,] # 3 > [,3] # 3 > [3,3] # 3 3 > $ # 3 ( [,3] ) > attach( ) “ $” 2024 3 — 2024-11 – p.7/18
8. 2024 3 — 2024-11 – p.8/18
9. (1) Dropbox data “ .txt” (2) (RStudio )( ) (3) RStudio > <- read.table(" .txt", header=T) > par(pty="s") # (square) > plot( ) # > plot( , xlim=c(0, 100), ylim=c(0, 100)) # 0 100 ‘read.table(. . .)’ ‘header=T’ (T True) ( ) ‘par(. . .)’ 2024 3 — 2024-11 – p.9/18
10. ” .txt” " " " " 96 65 35 36 26 30 32 50 91 66 47 22 73 59 67 70 52 18 68 79 37 46 41 64 77 74 86 92 . . . ( ) 100 R 2024 3 — 2024-11 – p.10/18
11. (Ubuntu ) . . . (1) Tools → Global Options. . . (2) Options Graphics (3) Graphics Device Backend “Cairo” OK Export → Save as PDF. . . Options “Use cairo_pdf device” Ubuntu Cairo https://www.cairographics.org GPL 2024 3 — 2024-11 – p.11/18
12. 2024 3 — 2024-11 – p.12/18
13. (macOS ) R console > capabilities()[c("cairo", "X11")] . . . cairo FALSE ( ) X11 FALSE X11 https://www.xquartz.org pkg (X11 XQuartz macOS ) . . . (1) Tools → Global Options. . . (2) Options Graphics (3) Graphics Device Backend “Cairo” OK Export → Save as PDF. . . Options “Use cairo_pdf device (requires X11)” 2024 3 — 2024-11 – p.13/18
14. (Windows ) . . . (1) Tools → Global Options. . . (2) Options Graphics (3) Graphics Device Backend “Cairo” OK Export → Save as PDF. . . Options “Use cairo_pdf device” ( ) > par(family="Japan1") R > par(pty="s") > ( ) 2024 3 — 2024-11 – p.14/18
15. . . . Graphics Device Backend “Cairo” “AGG” ragg AGG ( GPL) ragg AGG R JPEG PNG PDF/EPS 2024 3 — 2024-11 – p.15/18
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17. ” .txt” “ ” > mean( $ ) # > median( $ ) # > summary( ) # ( , 1 , , , 3 , ) Min. : 19.00 Min. : 7.00 1st Qu.: 44.75 1st Qu.:38.00 Median : 59.00 Median :53.00 Mean : 59.06 Mean :51.73 3rd Qu.: 73.00 3rd Qu.:66.00 Max. :100.00 Max. :94.00 > sd( $ ) # 1 (quartile) 1 4 , 3 3 4 ( 2 = ) 2024 3 — 2024-11 – p.17/18
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