Backtick non-semantic variable names #131

hadley · 2016-07-25T14:40:55Z

tb <- tibble(
  `:)` = "smile", 
  ` ` = "space",
  `2000` = "number"
)
tb

hadley · 2016-07-25T14:46:23Z

As far as I know, this is the only way to do it:

is_syntactic <- function(x) make.names(x) == x

tickit <- function(x) {
  needs_ticks <- !is_syntactic(x)
  x[needs_ticks] <- paste0("`", gsub("`", "\\\\`", x[needs_ticks]), "`")
  x
}

- Back-tick non-semantic column names (#131).

krlmlr · 2016-07-29T15:02:20Z

There's deparse() which is also used by print.default():

> deparse(quote(`5`), width.cutoff = 500L, backtick = TRUE)
[1] "`5`"
> deparse(quote(`a`), width.cutoff = 500L, backtick = TRUE)
[1] "a"
> deparse(quote(`repeat`), width.cutoff = 500L, backtick = TRUE)
[1] "`repeat`"

But if we start converting names to symbols first, tidyverse/dplyr#1950 applies again on Windows.

@kwstat

- The `tibble.width` option is used for `glimpse()` only if it is finite (#153, @kwstat). - New `as_tibble.poly()` to support conversion of a `poly` object to a tibble (#110). - `add_row()` now correctly handles existing columns of type `list` that are not updated (#148). - `all.equal()` doesn't throw an error anymore if one of the columns is named `na.last`, `decreasing` or `method` (#107, @BillDunlap). - New `add_column()`, analogously to `add_row()` (#99). - `print.tbl_df()` gains `n_extra` method and will have the same interface as `trunc_mat()` from now on. - `add_row()` and `add_column()` gain `.before` and `.after` arguments which indicate the row (by number) or column (by number or name) before or after which the new data are inserted. Updated or added columns cannot be named `.before` or `.after` (#99). - Rename `frame_data()` to `tribble()`, stands for "transposed tibble". The former is still available as alias (#132, #143). - `add_row()` now can add multiple rows, with recycling (#142, @jennybc). - Use multiply character `×` instead of `x` when printing dimensions (#126). Output tests had to be disabled for this on Windows. - Back-tick non-semantic column names on output (#131). - Use `dttm` instead of `time` for `POSIXt` values (#133), which is now used for columns of the `difftime` class. - Better output for 0-row results when total number of rows is unknown (e.g., for SQL data sources). - New object summary vignette that shows which methods to define for custom vector classes to be used as tibble columns (#151). - Added more examples for `print.tbl_df()`, now using data from `nycflights13` instead of `Lahman` (#121), with guidance to install `nycflights13` package if necessary (#152). - Minor changes in vignette (#115, @Helix123).

github-actions · 2020-12-15T00:39:56Z

This old thread has been automatically locked. If you think you have found something related to this, please open a new issue and link to this old issue if necessary.

hadley closed this as completed in 4bb2dbe Jul 25, 2016

krlmlr pushed a commit that referenced this issue Jul 29, 2016

Merge tag 'v1.1-2'

5aa1e88

- Back-tick non-semantic column names (#131).

github-actions bot locked and limited conversation to collaborators Dec 15, 2020

Backtick non-semantic variable names #131

Backtick non-semantic variable names #131

hadley commented Jul 25, 2016

hadley commented Jul 25, 2016

krlmlr commented Jul 29, 2016

github-actions bot commented Dec 15, 2020

Backtick non-semantic variable names #131

Backtick non-semantic variable names #131

Comments

hadley commented Jul 25, 2016

hadley commented Jul 25, 2016

krlmlr commented Jul 29, 2016

github-actions bot commented Dec 15, 2020