October 2017
Intermediate to advanced
480 pages
9h 49m
Japanese
Content preview from Rではじめるデータサイエンス
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22.3
アノテーション
401
これらの例では、
"\n"
を使って手動でラベルの行替えを行いました。代わりに
stringr::str_
wrap()
を使って、行ごとの字数を指定して、自動的に行替えすることもできます。
"Increasing engine size related to decreasing fuel economy." %>%
stringr::str_wrap(width = 40) %>%
writeLines()
#> Increasing engine size is related to
#> decreasing fuel economy.
ラベルの配置を制御する
hjust
と
vjust
の使い方に注意。図22-1に 9 つの可能な組み合わせのすべ
てを示します。
図22-1 hjustとvjustの 9 つの全組み合わせ
geom_text()
の他に、プロットにアノテーションを付けるのに役立つ
geom
が
ggplot2
にあります。
次のようなものです。
●
geom_hline()
と
geom_vline()
を使って、参照用の線を引く。私は太め（
size = 2
）の白色
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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.