[英]Multiple error bars add to columns in error on barplot in ggplot2
I am simply trying to add error bars to a side by side bar plot using ggplot. 我只是想使用ggplot将误差线添加到并排柱线图中。 I think data is arranged correctly as per below.
我认为数据如下正确排列。 I want to graph differences in fecundity between inbred and outbred populations derived from populations with (+SS) and without (-SS) sexual selection.
我想画出有(+ SS)和没有(-SS)性选择的群体的近交和近交群体的繁殖力差异。
inbreeding SS Fecundity se
1 Inbred +SS 5.60 0.8596205
2 Inbred +SS 7.40 1.1639316
3 Inbred +SS 6.25 1.2457824
4 Inbred +SS 1.40 0.1854050
5 Outbred +SS 7.70 1.2377824
6 Outbred +SS 6.30 0.6613384
7 Outbred +SS 2.35 1.0137865
8 Outbred +SS 8.27 1.2775966
9 Inbred -SS 9.15 1.7595977
10 Inbred -SS 12.50 1.7464249
11 Inbred -SS 10.95 1.9063260
12 Inbred -SS 3.65 1.2036676
13 Outbred -SS 7.65 1.5564382
14 Outbred -SS 9.10 1.5250539
15 Outbred -SS 5.75 1.3315503
16 Outbred -SS 3.65 0.9821432
The code I am using for making the plot is 我用于绘制情节的代码是
ggplot(Inbreeding27Means.ggplot,aes(x=SS,y=Fecundity,fill=inbreeding))+
geom_bar(stat="identity",position=position_dodge())+
geom_errorbar(aes(ymin=Fecundity-se,ymax=Fecundity+se),width=.2,
position=position_dodge(.9))
Which generally came from the R cookbook website here 一般从R菜谱网站来到这里
What appears to happen is that multiple error bars within each column/bar are added for each group of my grouping variable (inbreeding) ( I think). 似乎发生的情况是,为我的分组变量(近交)的每组添加了每列/条内的多个错误条(我认为)。 Sorry my reputation is not quiet high enough to add a picture.
抱歉,我的声誉不够高,无法添加图片。 So I hope code is clear.
所以我希望代码清晰。 The side by side bar graphs on the R cookbook website is essentially what I am aiming for except my variable (SS) on x-axis has only two groups.
我的目标是R Cookbook网站上的并排条形图,但我在x轴上的变量(SS)只有两组。
Obviously I'd like to just have one error bar per bar on the plot. 显然,我只想在情节上每条线有一个误差线。 If someone could suggest what I may have done wrong here i'd much appreciate it.
如果有人可以建议我在这里做错了,我将不胜感激。
Comparing with the example from R cookbook, your data has duplicate entries, ie each SS and inbreeding combination is not unique as you have four each. 与R cookbook中的示例相比,您的数据具有重复的条目,即,每个SS和近交组合不是唯一的,因为您每个都有四个。 What is the numeric value in the first column?
第一栏中的数值是多少? Is it something like a second treatment variable, ie do you expect there to be 16 bars?
它是否类似于第二个治疗变量,即您是否期望有16个柱形? Then you would want to look for something like this:
然后,您将需要查找以下内容:
data$population = c(1:16)
data$treatment = paste(data$population,data$inbreeding)
g=ggplot(data,aes(x=as.factor(population),y=Fecundity,fill=as.factor(SS),group=inbreeding))
g=g+geom_bar(stat="identity",position=position_dodge())
g=g+geom_errorbar(aes(ymin=Fecundity-se,ymax=Fecundity+se),width=.2,position=position_dodge(.9))
g=g+facet_grid(.~inbreeding,scales="free_x")
g
If you are only looking for four bars your data set should only have 4 rows. 如果仅查找四个条,则数据集应仅包含4行。
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