I'm trying to make a very simple stacked bar chart in ggplot2, but for some reason it doesn't work and I get the error message: "Error in pmin(y, 0) : object 'y' not found". Where's the problem?
我试图在ggplot2中创建一个非常简单的堆叠条形图，但是由于某些原因它不能工作，我得到了错误消息:“pmin(y, 0)中的错误:对象'y' not found”。问题在哪里?
factorvar <- c(1,1,1,2,2,2,3,3,3)
factorvar <- factor(factorvar, labels=c("Type", "Size", "Outcome"))
freq <- c(3,1,4,1,2,2,4,1,1)
fillvar <- c(1,1,1,2,2,2,3,3,3)
fillvar <- factor(fillvar)
df.harvest <- data.frame(fillvar,freq,factorvar)
harvest <- ggplot(df.harvest, aes(x=factorvar, y=freq, fill=fillvar)) + geom_bar()
harvest
3 个解决方案
#1
3
This is pretty old but I didn't see any good answer for it:
这是相当古老的，但我没有看到任何好的答案:
You should always specify the arguments in geom_bar if you are providing the y axis.
如果要提供y轴，则应该始终在geom_bar中指定参数。
You are already providing frequency as y axis and don't want geom_bar to calculate it for you, so you must specify geom_bar(stat = "identity")
您已经提供了y轴的频率，并且不希望它为您计算它，所以您必须指定“风水”(stat =“identity”)
Also, here your fillvar is essentially the same as factorvar and there is no point in using one as axis and one as fill color.
同样，在这里，fillvar和factorvar本质上是一样的，使用一个作为轴，一个作为填充颜色是没有意义的。
However if they were different, you had to also specify geom_bar(stat = "identity", position="dodge") or (stat = "identity", position="stack").
但是，如果它们不同，您还必须指定geom_bar(stat =" identity"， position="dodge")或(stat =" identity"， position="stack")。
By default, the stat was switching to "bin" in your case and it was giving the error. Also by default, the position uses stack.
默认情况下，在你的情况下，统计数据会切换到“bin”，它会给出错误。默认情况下，该位置使用堆栈。
#2
2
I'm not really sure if I understand what you want to count and what you want to stack, but using some of your data and this code
我不太确定我是否理解你想计数什么和你想堆栈什么，但是使用你的一些数据和这个代码
qplot(factor(freq), data=df.harvest, geom="bar", fill=factorvar)
I get this,
我得到了这个,
Is that what you are looking?
这就是你想要的吗?
#3
1
I'm not sure what the error message means, but if you use fillvar = c(1,2,3,1,2,3,1,2,3), (in place of your fillvar variable) you will get a stacked bar chart.
我不确定错误消息的含义是什么，但是如果您使用fillvar = c(1、2、3、1、2、3、1、2、3)，那么您将得到一个堆叠的条形图。
#1
3
This is pretty old but I didn't see any good answer for it:
这是相当古老的，但我没有看到任何好的答案:
You should always specify the arguments in geom_bar if you are providing the y axis.
如果要提供y轴，则应该始终在geom_bar中指定参数。
You are already providing frequency as y axis and don't want geom_bar to calculate it for you, so you must specify geom_bar(stat = "identity")
您已经提供了y轴的频率，并且不希望它为您计算它，所以您必须指定“风水”(stat =“identity”)
Also, here your fillvar is essentially the same as factorvar and there is no point in using one as axis and one as fill color.
同样，在这里，fillvar和factorvar本质上是一样的，使用一个作为轴，一个作为填充颜色是没有意义的。
However if they were different, you had to also specify geom_bar(stat = "identity", position="dodge") or (stat = "identity", position="stack").
但是，如果它们不同，您还必须指定geom_bar(stat =" identity"， position="dodge")或(stat =" identity"， position="stack")。
By default, the stat was switching to "bin" in your case and it was giving the error. Also by default, the position uses stack.
默认情况下，在你的情况下，统计数据会切换到“bin”，它会给出错误。默认情况下，该位置使用堆栈。
#2
2
I'm not really sure if I understand what you want to count and what you want to stack, but using some of your data and this code
我不太确定我是否理解你想计数什么和你想堆栈什么，但是使用你的一些数据和这个代码
qplot(factor(freq), data=df.harvest, geom="bar", fill=factorvar)
I get this,
我得到了这个,
Is that what you are looking?
这就是你想要的吗?
#3
1
I'm not sure what the error message means, but if you use fillvar = c(1,2,3,1,2,3,1,2,3), (in place of your fillvar variable) you will get a stacked bar chart.
我不确定错误消息的含义是什么，但是如果您使用fillvar = c(1、2、3、1、2、3、1、2、3)，那么您将得到一个堆叠的条形图。