在R中绘制简单的条形图，错误:高度必须是矩阵的向量 [英] Plotting a simple bargraph in R, Error: Height must be a vector of matrix

问题描述

这是我在R中的数据框，

This is my dataframe in R,

New York  8755
     Texas  7654
California  6726
   Florida  6322

我只希望图形比较并排堆积的条形中的数字，但我还没有做到这一点.我收到错误消息高度必须是矩阵的向量".请提出建议！非常感谢！

I simply want the graph to compare the numbers in a bar stacked side by side.I have not been able to achieve that. I am getting the error "Height must be a vector of Matrix." Please suggest! Thanks a lot!

推荐答案

R在传递变量时无法确定哪个变量是要绘制的整个data.frame.在这种情况下，错误'height'必须是向量或矩阵告诉您没有给plot函数提供它想要的东西.

R cannot tell which variable is which when you pass it an entire data.frame to plot. In this case, the error, 'height' must be a vector or a matrix is telling you you didn't give the plot function what it wanted.

对于 barplot ，使用?barplot 会告诉您需要什么:

For a barplot, using ?barplot will tell you what is needed:

barplot(高度，宽度= 1，空格= NULL，names.arg = NULL ....

barplot(height, width = 1, space = NULL, names.arg = NULL ....

在您的情况下，您有一个data.frame，在第二列中具有高度，在第一列中具有名称，因此您想这样做:

In your case, you have a data.frame with heights in the second column, and names in the first, so you want to do:

barplot(data[ ,2], names.arg = data[ ,1])

这篇关于在R中绘制简单的条形图，错误:高度必须是矩阵的向量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！