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
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
レシピ
10.3
凡例の項目順を変える
257
グラフ領域の内部に凡例を置く場合、凡例をそれ以外と区別するために不透明な境界線を付けたほ
うが良いこともあります（図10-4左）。
pg_plot +
theme(legend.position = c(.85, .2)) +
theme(legend.background = element_rect(fill = "white", colour = "black"))
プロットに溶け込むように、要素の周りの境界線を取り除くこともできます（図10-4右）。
pg_plot +
theme(legend.position = c(.85, .2)) +
theme(legend.background = element_blank()) + #
全体の境界線を削除
theme(legend.key = element_blank()) #
各項目の周りにある境界線を削除
図10-4 左：不透明な背景と外枠を持つ凡例 右：背景と外枠なしの凡例
レシピ
10.3
凡例の項目順を変える
問題
凡例の項目順を変えたい。
解決策
スケールの
limits
を望みの順に指定します（図10-5）。
#
基本プロットを作成
pg_plot <- ggplot(PlantGrowth, aes(x = group, y = weight, fill = group)) +
geom_boxplot()
pg_plot
258
10
章 凡例
#
項目順の変更
pg_plot +
scale_fill_discrete(limits ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.