使用R绘制具有标准错误的条形图 [英] plotting barplots with standard errors using R
本文介绍了使用R绘制具有标准错误的条形图的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试绘制带有标准错误的简单条形图,这使我发疯.我确实查看了一些示例,并了解了以下内容:
I am trying to plot a simple barplot with standard errors and its driving me crazy. I did look up some examples and got as far as this:
rt5 <- data.frame(rtgrp=c(37.2,38.0,38.3,38.5,38.9),
mort=c(35,11,16,8,4),
se=c(0.08,0.01,0.005,0.01,0.02))
rt5
xvals=with(rt5,
barplot(mort,names.arg=rtgrp,
xlab="PTEMP_R group mean",ylab="%",ylim=c(0,max(mort+10+se))))
我试图遍历脚本的最后一行,但是已经使用了很长时间了:
I am trying to get through the last line of script but have been on it for quite a while:
with(rt5,
arrows(xvals,mort,xvals,mort+se,length=45,angle=90,code=3))
我真的很想克服这个问题!
I would really love to get over this one!
谢谢
巴兹
推荐答案
length
是箭头的大小(错误栏的宽度):
45比您的情节大得多.
较小的值应该起作用.
length
is the size of the arrow (the width of the error bar):
45 is much, much larger than your plot.
A smaller value should work.
with(rt5,
arrows(
xvals,mort,xvals,mort+se,
length=.3, angle=90, code=3,
# Change the colour and line width, to see the error bars
col="navy", lwd=5
)
)
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