如何输入美国所有 50 个州而不必在 R 中全部输入？

Question

我正在尝试删除数据集中具有 U.S 州名称的行。我希望有一种方法可以在不输入所有 50 个代码的情况下输入代码。下面我分享了大图以及我希望在何处输入这些状态。

cshealthpredictors %>% 
 filter(!region %in% c("Alabama", "Arkansas" ,"Missouri","Texas","Georgia"))

Answer 1

正如@Ritchie 在评论中提到的那样，在 base R 中有一个内置的。

state.name
#>  [1] "Alabama"        "Alaska"         "Arizona"        "Arkansas"      
#>  [5] "California"     "Colorado"       "Connecticut"    "Delaware"      
#>  [9] "Florida"        "Georgia"        "Hawaii"         "Idaho"         
#> [13] "Illinois"       "Indiana"        "Iowa"           "Kansas"        
#> [17] "Kentucky"       "Louisiana"      "Maine"          "Maryland"      
#> [21] "Massachusetts"  "Michigan"       "Minnesota"      "Mississippi"   
#> [25] "Missouri"       "Montana"        "Nebraska"       "Nevada"        
#> [29] "New Hampshire"  "New Jersey"     "New Mexico"     "New York"      
#> [33] "North Carolina" "North Dakota"   "Ohio"           "Oklahoma"      
#> [37] "Oregon"         "Pennsylvania"   "Rhode Island"   "South Carolina"
#> [41] "South Dakota"   "Tennessee"      "Texas"          "Utah"          
#> [45] "Vermont"        "Virginia"       "Washington"     "West Virginia" 
#> [49] "Wisconsin"      "Wyoming"

^{由 reprex package (v2.0.1)}

创建于 2022-02-10

如何输入美国所有 50 个州而不必在 R 中全部输入？

How to input all 50 states in the United States without having to type them all in R?

r

data-manipulation

dplyr