November 2019
Intermediate to advanced
472 pages
9h 23m
Japanese
Content preview from Rグラフィックスクックブック 第2版 ―ggplot2によるグラフ作成のレシピ集
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レシピ
15.19
横持ち形式から縦持ち形式へ変換する
413
#> <fct> <fct> <int> <dbl> <dbl> <dbl> <dbl>
#> 1 c39 d16 9 3.26 0.982 0.327 1.10
#> 2 c39 d20 9 2.72 0.139 0.0465 0.156
#> 3 c39 d21 10 2.74 0.983 0.311 1.01
#> 4 c52 d16 10 2.26 0.445 0.141 0.458
#> 5 c52 d20 9 3.04 0.809 0.270 0.905
関連項目
ここで計算した値をグラフ上にエラーバーとして追加したい場合は「レシピ 7.7 エラーバーを追加
する」を参照してください。
レシピ
15.19
横持ち形式から縦持ち形式へ変換する
問題
横持ち形式（
wide format
）から縦持ち形式（
long format
）へデータを変換したい
＊
1
。
解決策
tidyr
パッケージの
gather()
を使います。
anthoming
データセットでは、各
angle
ごとに
2
つの測定
値があります。
1
列は実験条件下の値で、もう
1
列は対照実験下での値です。
library(gcookbook) #
データセットの読み込み
anthoming
#> angle expt ctrl
#> 1 -20 1 0
#> 2 -10 7 3
#> 3 0 2 3
#> 4 10 0 3
#> 5 20 0 1
すべての測定値が
1
列に収まるようにデータを整形することができます。次のコー ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.