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  <description>ggplot2は記法が独特なので敬遠してきたのですが、最近ggplot2を使うと良さそうな事案に遭遇したので勉強中です。 library(ggplot2) p1 &lt;- ggplot(iris, aes(Petal.Length, fill=Species)) p1 + geom_histogram() + opts(title=&quot;積み重ねヒストグラム&quot;) p1 + geom_histogram() + facet_grid(Species~.) + opts(title=&quot;群別ヒストグラム&quot;) p1 + geom_freqpoly(aes(color=Species)) + opts(titl…</description>
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  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2012-06-17 00:00:00</published>
  <title> ggplot2の練習中</title>
  <type>rich</type>
  <url>https://bob3.hatenablog.com/entry/20120617/p1</url>
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