r-在值的-后面添加空格

Question

根据以下数据，如何在特殊字符-后面添加空格？我知道我必须使用gsub，但它总是让我感到困惑，所以请解释一下。

Sample data and code:
id = c (1,2,3,4,5,6,7,8,9,10)
FiscalYear = c("2012 -2013", "2012 -2013", "2012 -2013", "2012 -2013", "2012 -2013",
"2012 -2013", "2012 -2013", "2012 -2013", "2012 -2013", "2012 -2013")
# Sample
df = data.frame(id, FiscalYear)
# Updated Sample
df_new = df %>% gsub....
# str_pad does not work
df_updated = df %>% with(stringr::str_pad(FiscalYear, width = 6, pad = " "))

Answer 1

在tidyverse中，值随mutate而更改。这些更改是此函数的参数。

suppressPackageStartupMessages(
library(dplyr)
)
id = c (1,2,3,4,5,6,7,8,9,10)
FiscalYear = c("2012 -2013", "2012 -2013", "2012 -2013", "2012 -2013", "2012 -2013",
"2012 -2013", "2012 -2013", "2012 -2013", "2012 -2013", "2012 -2013")
# Sample
df = data.frame(id, FiscalYear)
# Updated Sample
df_new <- df %>% 
mutate(FiscalYear = sub("-", "- ", FiscalYear))
df_new  
#>    id  FiscalYear
#> 1   1 2012 - 2013
#> 2   2 2012 - 2013
#> 3   3 2012 - 2013
#> 4   4 2012 - 2013
#> 5   5 2012 - 2013
#> 6   6 2012 - 2013
#> 7   7 2012 - 2013
#> 8   8 2012 - 2013
#> 9   9 2012 - 2013
#> 10 10 2012 - 2013

^{创建于2022-11-04，reprex v2.0.2}