Reading from multiple files AND make a column selection including the id column

[atomman]

Trying to read in multiple files and select a subset of the columns including the "id" column fails.

mt <- tibble::rownames_to_column(mtcars, "model")
purrr::iwalk(
  split(mt, mt$cyl),
  ~ vroom_write(.x, glue::glue("mtcars_{.y}.csv"), "\t")
)

files <- fs::dir_ls(glob = "mtcars*csv")
#> mtcars_4.csv mtcars_6.csv mtcars_8.csv
vroom(files, id = "path", col_select= c(mpg,cyl,disp, "path"))

Error in vroom_(file, delim = delim, col_names = col_names, col_types = col_types, : Evaluation error: Unknown column `path` Call `rlang::last_error()` to see a backtrace.

[jimhester]

Please try the development version of vroom, this is a duplicate of #110 and should be fixed in the devel version.

remotes::install_dev("vroom")

library(vroom)

mt <- tibble::rownames_to_column(mtcars, "model")
purrr::iwalk(
  split(mt, mt$cyl),
  ~ vroom_write(.x, glue::glue("mtcars_{.y}.csv"), "\t")
)

files <- fs::dir_ls(glob = "mtcars*csv")
vroom(files, id = "path", col_select= c(mpg,cyl,disp, "path"))
#> # A tibble: 32 x 4
#>      mpg   cyl  disp path        
#>    <dbl> <dbl> <dbl> <chr>       
#>  1  22.8     4 108   mtcars_4.csv
#>  2  24.4     4 147.  mtcars_4.csv
#>  3  22.8     4 141.  mtcars_4.csv
#>  4  32.4     4  78.7 mtcars_4.csv
#>  5  30.4     4  75.7 mtcars_4.csv
#>  6  33.9     4  71.1 mtcars_4.csv
#>  7  21.5     4 120.  mtcars_4.csv
#>  8  27.3     4  79   mtcars_4.csv
#>  9  26       4 120.  mtcars_4.csv
#> 10  30.4     4  95.1 mtcars_4.csv
#> # … with 22 more rows

^{Created on 2019-12-27 by the reprex package (v0.3.0)}