创建具有多个位置出现次数的直方图 [英] Creating a histogram with the number of occurrences at multiple places

问题描述

我有一组看起来像这样的数据(略大一些):

I have a set of data that looks like that (just way bigger):

2  7
3  9
5  3
2  4
7  3
3  4   
2  2

我想生成一个直方图，其条形图的高度为2(7 + 4 + 2)，所以13为13，高度为3，5为3，7为3.

and I would like to produce a histogram with bars at 2 of height (7+4+2), so 13, at 3 of height 13, 5 at 3 and 7 at 3.

我希望这个问题不要太愚蠢，但是我发现的教程没有讨论这个问题.感谢您的任何事先帮助.

I hope the question is not too dumb, but the tutorials I found did not discuss this problem. Thanks for any help in advance.

推荐答案

DF <- read.table(text="2 7
3 9    
5 3    
2 4    
7 3    
3 4    
2 2")

library(ggplot2)
ggplot(DF,aes(x=V1,y=V2)) +stat_summary(fun.y=sum,geom="bar")

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