在r中使用ggplot2创建月份大小的bin [英] Creating month-sized bins with ggplot2 in r

问题描述

我有一组数据，我需要绘制在ggplot2。它是时间排序。这是资料集：

  testset<  -  data.table（Date = as.Date（c -02，2013-08-03，2013-09-04，2013-10-05，2013-11-06，2013-07-03，2013-08-04 ，2013-09-05，2013-10-06，2013-11-07）），Action = c（A，B，C，D，E ，B，A，B，C，A，B，E，E，C，A 
  

我所做的是绘制它，并使用scale_x_date将过期数据放在图表上。但是，当我这样做，它不会把它分成月份大小的bin。

  ggplot（testset，aes（Date，fill = Action） ）+ geom_bar（position =dodge）+ scale_x_date（labels = date_format（％b％Y），breaks = date_breaks（width =months））
  
 
 
 
我想做的是将每个月的所有日期放入单个bin，然后绘图。我没有找到任何解决方案时，通过StackOverflow和没有呈现本身，而通过文献ggplot2或scale_x_date。我不反对使用lubridate或动物园，如果他们可以提供我正在寻找的输出。
 
 
 
提前感谢！
 
 
 
编辑：看到以下来自@mnel的回答后，我最终发布了关于如何修改图表的问题。在@tonytonov给我的帮助和@mnel给我在这里，我想出了一个解决方案。
  ggplot ，aes（as.factor（as.yearmon（Date）），fill = Action））+ 
 geom_bar（position ='dodge'）+ xlab（Date）+ ylab b  
最后给我这张图：
 
 
 
 img src =https://i.imgur.com/eMvOhyg.pngalt =最终图> 
 
 
 
感谢你们！
解决方案
您可以使用动物园 yearmon  / code>包。在动物园包中有缩放_..._ yearmon 函数，其工作方式类似于在缩放包中的缩放函数
  library（zoo）
 ggplot（testset，aes（as.yearmon（Date），fill = Action））+ 
 geom_bar（position = position_dodge（width = 1/12），
 binwidth = 1/12，color ='black'）+ 
 scale_x_yearmon（）
  
 > 
 
I have a set of data that I need to plot in ggplot2. It is time ordered. This is the data set:
testset <- data.table(Date=as.Date(c("2013-07-02","2013-08-03","2013-09-04","2013-10-05","2013-11-06","2013-07-03","2013-08-04","2013-09-05","2013-10-06","2013-11-07")), Action = c("A","B","C","D","E","B","A","B","C","A","B","E","E","C","A"), rating = runif(30))
What I am doing is plotting it and using scale_x_date to put dated data on the graph. However, when I do this, it doesn't bin it into month-sized bins. Instead, it bins it by the day that the action was taken.
ggplot(testset, aes(Date, fill=Action)) + geom_bar(position="dodge") + scale_x_date(labels = date_format("%b %Y"), breaks = date_breaks(width = "months"))
What I would like to do is have all of the dates for each month placed into a single bin and then graphed. I haven't found any solutions when going through StackOverflow and nothing presented itself while going through the literature for ggplot2 or scale_x_date. I'm not opposed to using lubridate or zoo if they can provide the output that I am looking for.

Thanks in advance!

EDIT: After seeing the answer below from @mnel, I ended up posting a question about how to modify plots. Between the help that @tonytonov gave me there and that @mnel gave me here, I figured out a solution.
ggplot(testset, aes(as.factor(as.yearmon(Date)), fill=Action)) + 
geom_bar(position='dodge') + xlab("Date") + ylab("Count")
This ended up giving me this graph:



Thanks to both of you!
解决方案
You can use the yearmon class from the zoo package. There is a scale_..._yearmon function in the zoo package that works similarly to the scale_x_date function in the scales package
library(zoo)
ggplot(testset, aes(as.yearmon(Date), fill=Action)) + 
  geom_bar(position = position_dodge(width  = 1/12), 
           binwidth=1/12, colour='black') + 
  scale_x_yearmon()


                        
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