I have a df with column named 'error (range)' containing the values with error range like below,

But I want to extract the values and my df columns should look like,

Can anyone help me with the coding in R to achieve this ?

CodePudding user response：

library(tidyverse)
df %>%
   set_names('error')%>%
   separate(error, c('error', 'error_min', 'error_max'), 
                convert = TRUE, extra = 'drop')

  error error_min error_max
1    25        20        30
2    42        39        48
3    35        32        38