“高度"必须是向量或矩阵.条码错误 [英] 'height' must be a vector or a matrix. barplot error

问题描述

我正在尝试创建一个简单的条形图，但是我一直收到错误消息

I am trying to create a simple bar chart, but I keep receiving the error message

'height' must be a vector or a matrix

我一直在尝试的barplot函数是

The barplot function I have been trying is

barplot(data, xlab="Percentage", ylab="Proportion")

我已经输入了csv，数据如下:

I have inputted my csv, and the data looks as follows:

34.88372093 0.00029997
35.07751938 0.00019998
35.27131783 0.00029997
35.46511628 0.00029997
35.65891473 0.00069993
35.85271318 0.00069993
36.04651163 0.00049995
36.24031008 0.0009999
36.43410853 0.00189981
...

我在哪里错了?

提前谢谢！

dput(head(data)) outputs:
structure(list(V1 = c(34.88372093, 35.07751938, 35.27131783, 
35.46511628, 35.65891473, 35.85271318), V2 = c(0.00029997, 0.00019998, 
0.00029997, 0.00029997, 0.00069993, 0.00069993)), .Names = c("V1", 
"V2"), row.names = c(NA, 6L), class = "data.frame")

和barplot(as.matrix(data))生成了一个图表，其中所有数据都在一个条形图上，而每条数据都在一个单独的条形图上.

and barplot(as.matrix(data)) produced a chart with all the data one bar as opposed to each piece of data on a separate bar.

推荐答案

您可以指定要绘制的两个变量，而不是像这样传递整个数据框:

You can specify the two variables you want to plot rather than passing the whole data frame, like so:

data <- structure(list(V1 = c(34.88372093, 35.07751938, 35.27131783, 35.46511628, 35.65891473, 35.85271318), 
                       V2 = c(0.00029997, 0.00019998, 0.00029997, 0.00029997, 0.00069993, 0.00069993)), 
                  .Names = c("V1", "V2"), row.names = c(NA, 6L), class = "data.frame")

barplot(data$V2, data$V1, xlab="Percentage", ylab="Proportion")

或者，您可以使用ggplot来做到这一点:

Alternatively, you can use ggplot to do this:

library(ggplot2)
ggplot(data, aes(x=V1, y=V2)) + geom_bar(stat="identity") + 
  labs(x="Percentage", y="Proportion")

这篇关于“高度"必须是向量或矩阵.条码错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！