blocks|key|870206|text|您需要类似于cex=1.5参数的内容来将字体缩放150+%25。但要看到help(par)，因为还有cex.lab，cex.axis，...|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|870207|entityMap^0|6|7|Y|9|1C|7|1K|8|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|G|$]]

You want something like the <code>cex=1.5</code> argument to scale fonts 150 percent. But do see <code>help(par)</code> as there are also <code>cex.lab</code>, <code>cex.axis</code>, ...

blocks|key|1085037|text|因此，为了总结现有的讨论，添加了|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1085038|cex.lab=1.5,+cex.axis=1.5,+cex.main=1.5,+cex.sub=1.5|offset|length|style|CODE|1085039|对于您的绘图，1.5可以是2、3等，默认值为1会增加字体大小。|1085040|x+<-+rnorm(100)|code-block|syntax|javascript|1085041|cex不会改变事情|1085042|hist(x,+xlim=range(x),
+++++xlab=+"Variable+Lable",+ylab="density",+main="Title+of+plot",+prob=TRUE)

hist(x,+xlim=range(x),
+++++xlab=+"Variable+Lable",+ylab="density",+main="Title+of+plot",+prob=TRUE,+
+++++cex=1.5)|1085043|​|1085044|📷|atomic|1085045|1085046|添加cex.lab=1.5、cex.axis=1.5、cex.main=1.5、cex.sub=1.5|1085047|hist(x,+xlim=range(x),
+++++xlab=+"Variable+Lable",+ylab="density",+main="Title+of+plot",+prob=TRUE,+
+++++cex.lab=1.5,+cex.axis=1.5,+cex.main=1.5,+cex.sub=1.5)|1085048|1085049|1085050|1085051|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/8455894cd8406e7c860a1c04ac7a0f8c.png|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/9bcc970818639460c9513cc015ddeec0.png^0|0|0|1G|0|0|0|0|0|0|0|1|0|0|0|0|0|0|0|1|1|0|0^^$0|@$1|2|3|4|5|6|7|1G|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1H|8|@$D|1I|E|1J|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|1K|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|1L|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|1M|8|@]|9|@]|A|$]]|$1|Q|3|R|5|L|7|1N|8|@]|9|@]|A|$M|N]]|$1|S|3|T|5|6|7|1O|8|@]|9|@]|A|$]]|$1|U|3|V|5|W|7|1P|8|@]|9|@$D|1Q|E|1R|1|1S]]|A|$]]|$1|X|3|T|5|6|7|1T|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1U|8|@]|9|@]|A|$]]|$1|10|3|11|5|L|7|1V|8|@]|9|@]|A|$M|N]]|$1|12|3|T|5|6|7|1W|8|@]|9|@]|A|$]]|$1|13|3|V|5|W|7|1X|8|@]|9|@$D|1Y|E|1Z|1|20]]|A|$]]|$1|14|3|T|5|6|7|21|8|@]|9|@]|A|$]]|$1|15|3|-4|5|6|7|22|8|@]|9|@]|A|$]]]|16|$17|$5|18|19|1A|A|$1B|1C|1D|-4]]|1E|$5|18|19|1A|A|$1B|1F|1D|-4]]]]

Thus, to summarise the existing discussion, adding

<code>cex.lab=1.5, cex.axis=1.5, cex.main=1.5, cex.sub=1.5</code>

to your plot, where 1.5 could be 2, 3, etc. and a value of 1 is the default will increase the font size.

<pre><code>x &lt;- rnorm(100)
</code></pre>

<h1>cex doesn't change things</h1>

<pre><code>hist(x, xlim=range(x),
 xlab= "Variable Lable", ylab="density", main="Title of plot", prob=TRUE)

hist(x, xlim=range(x),
 xlab= "Variable Lable", ylab="density", main="Title of plot", prob=TRUE, 
 cex=1.5)
</code></pre>

<img src="https://i.stack.imgur.com/UCR6W.png" alt="enter image description here">

<h1>Add cex.lab=1.5, cex.axis=1.5, cex.main=1.5, cex.sub=1.5</h1>

<pre><code>hist(x, xlim=range(x),
 xlab= "Variable Lable", ylab="density", main="Title of plot", prob=TRUE, 
 cex.lab=1.5, cex.axis=1.5, cex.main=1.5, cex.sub=1.5)
</code></pre>

<img src="https://i.stack.imgur.com/0Aa65.png" alt="enter image description here">

blocks|key|870400|text|当我想使轴标签更小，但保持其他所有标签的大小不变时，我遇到了这个问题。对我有效的命令是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|870401|par(cex.axis=0.5)|code-block|syntax|javascript|870402|在plot命令之前。只需记住放入：|870403|par(cex.axis=1.0)|870404|打印后，确保字体恢复为默认大小。|870405|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I came across this when I wanted to make the axis labels smaller, but leave everything else the same size. The command that worked for me, was to put:

<pre><code>par(cex.axis=0.5)
</code></pre>

Before the plot command. Just remember to put:

<pre><code>par(cex.axis=1.0)
</code></pre>

After the plot to make sure that the fonts go back to the default size.

blocks|key|870325|text|如果要在设置labels=TRUE时增加直方图标签的字体|type|unstyled|depth|inlineStyleRanges|entityRanges|data|870326|bp=hist(values,+labels+=+FALSE,+
+main='Histogram',
+xlab='xlab',ylab='ylab',++cex.main=2,+cex.lab=2,cex.axis=2)

text(x=bp$mids,+y=bp$counts,+labels=bp$counts+,cex=2,pos=3)|code-block|syntax|javascript|870327|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

In case you want to increase the font of the labels of the histogram when setting labels=TRUE

<pre><code>bp=hist(values, labels = FALSE, 
 main='Histogram',
 xlab='xlab',ylab='ylab', cex.main=2, cex.lab=2,cex.axis=2)

text(x=bp$mids, y=bp$counts, labels=bp$counts ,cex=2,pos=3)
</code></pre>

blocks|key|870459|text|为了完整，使用cex+=+1.5将文本缩放150%25，下面是一个完整的解决方案：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|870460|cex+<-+1.5
par(cex.lab=cex,+cex.axis=cex,+cex.main=cex)
plot(...)
par(cex.lab=1,+cex.axis=1,+cex.main=1)|code-block|syntax|javascript|870461|我建议使用这样的包装来减少样板文件，例如：|870462|plot_cex+<-+function(x,+y,+cex=1.5,+...)+{
++par(cex.lab=cex,+cex.axis=cex,+cex.main=cex)
++plot(x,+y,+...)
++par(cex.lab=1,+cex.axis=1,+cex.main=1)
++invisible(0)
}|870463|然后可以像这样使用它：|870464|plot_cex(x=1:5,+y=rnorm(5),+cex=1.3)|870465|...在R中称为椭圆，用于将附加参数传递给函数。因此，它们通常用于绘图。因此，下面的代码如预期的那样工作：|870466|plot_cex(x=1:5,+y=rnorm(5),+cex=1.5,+ylim=c(-0.5,0.5))|870467|entityMap^0|7|9|0|0|0|0|0|0|0|3|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|11|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|13|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|14|8|@]|D|@]|E|$]]|$1|Q|3|R|5|H|7|15|8|@]|D|@]|E|$I|J]]|$1|S|3|T|5|6|7|16|8|@$9|17|A|18|B|C]]|D|@]|E|$]]|$1|U|3|V|5|H|7|19|8|@]|D|@]|E|$I|J]]|$1|W|3|-4|5|6|7|1A|8|@]|D|@]|E|$]]]|X|$]]

For completeness, scaling text by 150% with <code>cex = 1.5</code>, here is a full solution:

<pre><code>cex &lt;- 1.5
par(cex.lab=cex, cex.axis=cex, cex.main=cex)
plot(...)
par(cex.lab=1, cex.axis=1, cex.main=1)
</code></pre>

I recommend wrapping things like this to reduce boilerplate, e.g.:

<pre><code>plot_cex &lt;- function(x, y, cex=1.5, ...) {
 par(cex.lab=cex, cex.axis=cex, cex.main=cex)
 plot(x, y, ...)
 par(cex.lab=1, cex.axis=1, cex.main=1)
 invisible(0)
}
</code></pre>

which you can then use like this:

<pre><code>plot_cex(x=1:5, y=rnorm(5), cex=1.3)
</code></pre>

The <code>...</code> are known as ellipses in R and are used to pass additional parameters on to functions. Hence, they are commonly used for plotting. So, the following works as expected:

<pre><code>plot_cex(x=1:5, y=rnorm(5), cex=1.5, ylim=c(-0.5,0.5))
</code></pre>

blocks|key|870563|text|或者，可以使用图形设备的res参数更改保存的图像的分辨率：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|870564|png(file+=+"myplot1.png",++bg+=+"transparent",+res+=+100)+++
plot(1:10)++++++++++++++++++++++++++++++++++++++++++++++++++
dev.off()+++++++++++++++++++++++++++++++++++++++++++++++++++|code-block|syntax|javascript|870565|​|870566|📷|atomic|offset|length|870567|870568|png(file+=+"myplot2.png",+bg+=+"transparent",+res+=+200)++++
plot(1:10)++++++++++++++++++++++++++++++++++++++++++++++++++
dev.off()+++++++++++++++++++++++++++++++++++++++++++++++++++|870569|870570|870571|870572|这将保持以像素为单位的图像大小不变，但它将改变绘图的纵横比，包括字体大小。|870573|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/7d7cfebd542d82b6bff21186f828fb46.png|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/f122952b797dbf45773bc703bf52a65c.png^0|0|0|0|0|1|0|0|0|0|0|0|1|1|0|0|0^^$0|@$1|2|3|4|5|6|7|16|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|17|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|18|8|@]|9|@]|A|$]]|$1|I|3|J|5|K|7|19|8|@]|9|@$L|1A|M|1B|1|1C]]|A|$]]|$1|N|3|H|5|6|7|1D|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|1E|8|@]|9|@]|A|$E|F]]|$1|Q|3|H|5|6|7|1F|8|@]|9|@]|A|$]]|$1|R|3|J|5|K|7|1G|8|@]|9|@$L|1H|M|1I|1|1J]]|A|$]]|$1|S|3|H|5|6|7|1K|8|@]|9|@]|A|$]]|$1|T|3|U|5|6|7|1L|8|@]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1M|8|@]|9|@]|A|$]]]|W|$X|$5|Y|Z|10|A|$11|12|13|-4]]|14|$5|Y|Z|10|A|$11|15|13|-4]]]]

Alternatively, you can change the resolution of the saved image with the res parameter of the graphics device:
<pre><code>png(file = &quot;myplot1.png&quot;, bg = &quot;transparent&quot;, res = 100) 
plot(1:10) 
dev.off() 
</code></pre>
<a href="https://i.stack.imgur.com/mVl5F.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mVl5F.png" alt="plot 1" /></a>
<pre><code>png(file = &quot;myplot2.png&quot;, bg = &quot;transparent&quot;, res = 200) 
plot(1:10) 
dev.off() 
</code></pre>
<a href="https://i.stack.imgur.com/EDTQM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/EDTQM.png" alt="plot2" /></a>
This will keep the same image size in pixels, but it will change the plot's aspect ratio, including font size.

I am confused. What is the right way to increase font size of text in the title, labels and other places of a plot? 

For example

<pre><code>x &lt;- rnorm(100)
hist(x, xlim=range(x), xlab= "Variable Label", 
 ylab="density", main="Title of plot", prob=TRUE, ps=30)
</code></pre>

The <code>ps</code> argument does not change font size (but it says in R Help for <code>?par</code> that it is for "the point size of text (but not symbols)".

Also is it possible to separate changing the font size from the plotting function such as <code>hist</code>?

How to increase font size in a plot in R?

我很困惑。在绘图的标题、标签和其他位置增加文本字体大小的正确方法是什么？例如x <- rnorm(100)hist(x, xlim=range(x), xlab= "Variable Label", ylab="density", main="Title of plot", prob=TRUE, ps=30)ps参数不会更改字体大小(但它在?par的R帮助中显示为“文本的磅大小(但不是符

问如何在R中增加绘图的字体大小？
EN

回答 6

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何在R中增加绘图的字体大小？EN

回答 6

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何在R中增加绘图的字体大小？
EN