如何将数据框的行名与特殊字符连接在一起？ [英] How to concatenate the row names of a data frame with a special character?

问题描述

我想用 +连接数据框的行名以返回字符串。例如

I would like to concatenate the row names of a data frame with a "+" to return a string. For example

head(USArrests)

           Murder Assault UrbanPop Rape
Alabama      13.2     236       58 21.2
Alaska       10.0     263       48 44.5
Arizona       8.1     294       80 31.0
Arkansas      8.8     190       50 19.5
California    9.0     276       91 40.6
Colorado      7.9     204       78 38.7

我的目标是获得

goal = Alabama+Alaska+Arizona+Arkansas+California+Colorado+...

I

goal = paste0(rownames(USArrests), sep="+")

head(goal)
[1] "Alabama+"    "Alaska+"     "Arizona+"    "Arkansas+"   "California+"     "Colorado+"

我对R还是比较陌生，却迷失了如何获得想要的那个。有人可以帮我吗？谢谢！

I am relatively new to R and am lost on how to get the one I wanted. Could someone help me? Thanks!

推荐答案

paste(rownames(USArrests), collapse="+")

这篇关于如何将数据框的行名与特殊字符连接在一起？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！