向 tm_object 添加中断的问题

问题描述

我在向 tm_map 添加固定中断时遇到问题。我在不同的数据集上尝试了与此论坛 (Customize how R tmap legend values are printed) 上的另一个主题相同的代码，但原理是相同的。我使用了论坛中的示例，因为在 Map1 行的 break-section 中添加所有值也不起作用。但是，这两种情况都给了我错误： Error in .subset2(x,i,exact = exact) : no such index at level 1 谁能解释一下这个错误究竟意味着什么以及如何克服它？

代码

mybreaks1 = c(0,5,15,25,35,70) 
mybreaks2 = c()

for (i in 1:length(mybreaks1)-1){
  print(i)
  if (i == 1){
    mybreaks2[i] <- paste0(mybreaks1[i]," - ",mybreaks1[i+1])
  }
  if (i >1){
    mybreaks2[i] <- paste0(prettyNum(mybreaks1[i]+1,big.mark = " "),prettyNum(mybreaks1[i+1],big.mark = " "))
  }
}
Map1 = tm_shape(Week1_PlasticMap) + tm_fill(col = "total.per.segment",breaks = mybreaks1,labels = mybreaks2,style = "fixed",convert2density = TRUE,area = Week1_PlasticMap$area,title = "Plastics (m^-2)",interactive = TRUE) + tm_borders(col = "darkslategrey") + tm_layout(main.title = "Week 1",legend.outside = TRUE,attr.outside= TRUE,attr.outside.position=c("right","bottom"),legend.width = 0.2,legend.height = 0.3)``` 


The dataframe Week1_Plastic can be downloaded via the link below,because the dimensions are to large to upload in this question.

https://www.transferNow.net/7il18A012021

解决方法

我自己修好了！结果发现我的数据表有问题。