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	<title>生信菜鸟团 &#187; 条形图</title>
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		<title>用R画GO注释二级分类统计图</title>
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		<pubDate>Mon, 25 May 2015 05:45:41 +0000</pubDate>
		<dc:creator><![CDATA[ulwvfje]]></dc:creator>
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		<category><![CDATA[条形图]]></category>

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		<description><![CDATA[群里有朋友问这个图怎么画，我想了想，这肯定是ggplot完成的，非常简单，但是菜 &#8230; <a href="http://www.bio-info-trainee.com/771.html">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
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<p style="margin: 0px 0px 1.2em !important;">群里有朋友问这个图怎么画，我想了想，这肯定是ggplot完成的，非常简单，但是菜鸟们缺乏实践，可能会困惑，所以我模拟数据画了一个！</p>
<p style="margin: 0px 0px 1.2em !important;"><a href="http://www.bio-info-trainee.com/wp-content/uploads/2015/05/图片13.png"><img class="alignnone  wp-image-772" src="http://www.bio-info-trainee.com/wp-content/uploads/2015/05/图片13.png" alt="图片1" width="682" height="511" /></a></p>
<p style="margin: 0px 0px 1.2em !important;">首先构造数据</p>
<pre style="font-size: 1em; font-family: Consolas, Inconsolata, Courier, monospace; line-height: 1.2em; margin: 1.2em 0px;"><code class="hljs language-R" style="font-size: 0.85em; font-family: Consolas, Inconsolata, Courier, monospace; margin: 0px 0.15em; padding: 0.5em; white-space: pre; border: 1px solid #cccccc; background-color: #f8f8f8; border-radius: 3px; display: block; overflow: auto; overflow-x: auto; color: #333333; background: #f8f8f8; text-size-adjust: none;">dat=data.frame(name=LETTERS[<span class="hljs-number" style="color: #008080;">1</span>:<span class="hljs-number" style="color: #008080;">21</span>],
 number=abs(rnorm(<span class="hljs-number" style="color: #008080;">21</span>)*<span class="hljs-number" style="color: #008080;">10</span>),
 type=c(rep(<span class="hljs-string" style="color: #dd1144;">"BP"</span>,<span class="hljs-number" style="color: #008080;">7</span>),rep(<span class="hljs-string" style="color: #dd1144;">"CC"</span>,<span class="hljs-number" style="color: #008080;">7</span>),rep(<span class="hljs-string" style="color: #dd1144;">"MF"</span>,<span class="hljs-number" style="color: #008080;">7</span>))
)
<span class="hljs-comment" style="color: #999988; font-style: italic;"># 请务必自己查看dat是一个什么数据，print出来即可</span>
<span class="hljs-comment" style="color: #999988; font-style: italic;"># 然后对这个数据画图，一行代码即可！！！</span>
<span class="hljs-keyword" style="color: #333333; font-weight: bold;">library</span>(ggplot2)
ggplot(dat,aes(x=name,y=number,fill=type))+geom_bar(stat=<span class="hljs-string" style="color: #dd1144;">"identity"</span>)+coord_flip()
</code></pre>
<p style="margin: 0px 0px 1.2em !important;">看起来是不是很像回事啦！细节我就懒得调控啦！</p>
<p style="margin: 0px 0px 1.2em !important;"><a href="http://www.bio-info-trainee.com/wp-content/uploads/2015/05/图片2.png"><img class="alignnone  wp-image-773" src="http://www.bio-info-trainee.com/wp-content/uploads/2015/05/图片2.png" alt="图片2" width="612" height="399" /></a></p>
<p style="margin: 0px 0px 1.2em !important;">其实自己搜索即可！坐标轴和主题都是可以控制的</p>
<p style="margin: 0px 0px 1.2em !important;"><a href="http://rstudio-pubs-static.s3.amazonaws.com/3364_d1a578f521174152b46b19d0c83cbe7e.html">http://rstudio-pubs-static.s3.amazonaws.com/3364_d1a578f521174152b46b19d0c83cbe7e.html</a></p>
<p style="margin: 0px 0px 1.2em !important;"><a href="http://docs.ggplot2.org/0.9.3.1/coord_flip.html">http://docs.ggplot2.org/0.9.3.1/coord_flip.html</a></p>
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