Is there any reason why R is automatically printing backticks on the first element of a list?
Or should I file it as a bug?
Take this MWE. In the console it prints out as:
tmp <- list(a = 'a_val', b = 'b_val')
tmp
#> $`a`
#> [1] "a_val"
#>
#> $b
#> [1] "b_val"
names(tmp)
#> [1] "a" "b"
This is source of problems when using quoted strings as names.
I know it is not the best practice as one should avoid duplicate names, yet it is inconsistent:
tmp2 <- list(a = 'a_val', b = 'b_val', `a` = 'a_val2', `+` = 'plus_val')
tmp2
#> $`a`
#> [1] "a_val"
#>
#> $b
#> [1] "b_val"
#>
#> $a
#> [1] "a_val2"
#>
#> $`+`
#> [1] "plus_val"
names(tmp2)
#> [1] "a" "b" "a" "+"
Session info
devtools::session_info()
#> Session info ------------------------------------------------------------------
#> setting value
#> version R version 3.5.0 (2018-04-23)
#> system x86_64, mingw32
#> ui Rgui
#> language (EN)
#> collate English_United States.1252
#> tz Europe/Berlin
#> date 2018-05-17
#>
#> Packages ----------------------------------------------------------------------
#> package * version date source
#> base * 3.5.0 2018-04-23 local
#> compiler 3.5.0 2018-04-23 local
#> datasets * 3.5.0 2018-04-23 local
#> devtools 1.13.5 2018-02-18 CRAN (R 3.5.0)
#> digest 0.6.15 2018-01-28 CRAN (R 3.5.0)
#> graphics * 3.5.0 2018-04-23 local
#> grDevices * 3.5.0 2018-04-23 local
#> memoise 1.1.0 2017-04-21 CRAN (R 3.5.0)
#> methods * 3.5.0 2018-04-23 local
#> rstudioapi 0.7 2017-09-07 CRAN (R 3.5.0)
#> stats * 3.5.0 2018-04-23 local
#> utils * 3.5.0 2018-04-23 local
#> withr 2.1.2 2018-03-15 CRAN (R 3.5.0)
