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
2.6
関数曲線をプロットする
21
図2-11 左：ggplot()で作成した作成した箱ひげ図 右：グループ分けの変数を増やした箱ひげ図
interaction()
で変数を組み合わせることによって、複数の変数を使用した箱ひげ図も作れます（図
2-11右）
ggplot(ToothGrowth, aes(x = interaction(supp, dose), y = len)) +
geom_boxplot()
base
グラフィックスで作成した箱ひげ図と
ggplot2
で作成した図に、ほんの少しだけ違い
があることにお気付きかもしれません。
base
グラフィックスと
ggplot2
では分位数の計算
方法が少しだけ異なることから、この違いは生じています。計算方法の違いの詳細について
は、
?geom_boxplot
と
?boxplot.stats
を参照してください。
関連項目
基本的な箱ひげ図の作成についてより詳しくは、「レシピ6.6 基本的な箱ひげ図を作成する」を参照
してください。
レシピ
2.6
関数曲線をプロットする
問題
関数曲線をプロットしたい。
解決策
図2-12のような関数曲線をプロットするには、
curve()
を使用して、変数
x
を使った数式を渡します。
curve(x^3 - 5*x, from = -4, to = 4)
22
2
章 データの基本的なプロット
図2-12 左：baseグラフィックスで作成した関数曲線 右：ユーザ定義の関数をプロットした関数曲線
数値型のベクトルを入力に取り数値型のベク
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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.