Replace all under_scores in df names with space-CodePudding

A dataframe:

mydf <- data.frame(
  SOME_FIELD = 1:3,
  ANOTHER_FIELD = letters[1:3]
)

I would like to replace all underscores in the field names with a space. Tried:

mydf %>% rename_all(str_replace_all('_', ' '))
Error in fix_replacement(replacement) : 
  argument "replacement" is missing, with no default

How can I change all names to use spaces instead of underscores?

CodePudding user response：

You may use -

library(dplyr)
library(stringr)

mydf %>% rename_all(~str_replace_all(., '_', ' '))

#  SOME FIELD ANOTHER FIELD
#1          1             a
#2          2             b
#3          3             c

Since rename_all has been replaced with rename_with -

mydf %>% rename_with(~str_replace_all(., '_', ' '))

Or in base R -

names(mydf) <- gsub('_', ' ', names(mydf))

CodePudding user response：

We may use sub in base R

names(mydf) <- sub("_", " " , names(mydf))
mydf
  SOME FIELD ANOTHER FIELD
1          1             a
2          2             b

Or use chartr

library(dplyr)
mydf %>% 
   rename_with(~ chartr('_', " ", .), everything())
  SOME FIELD ANOTHER FIELD
1          1             a
2          2             b
3          3             c