Coloring NA values

[kwakuduahc1]

I have been trying to color only NA values without coloring other variables with the data_color function but without success.

There appears to be an inconsistency in the behavior of the row parameter:

library(tidyverse)
library(gt)

dset <- tibble(
               temperature = c(1, 2, NA),
               pulse = c(NA, 1, 1.2)
        )

This does not work

dset %>%
  gt() %>%
  data_color(rows = is.na(everything()))

Error in `get_contrast_ratio()`:
! At least one color defined for each of `color_1` and `color_2`.~

... but this does

dset %>%
  gt() %>%
  data_color(rows = is.numeric(everything()))

is.na and is.numeric in my knowledge evaluates to the same logical value(s)

dset %>%
  gt() %>%
  data_color(rows = where( ~ is.na(.)))

I want to color only the NA values without coloring any other value

Thanks.

[rich-iannone]

Thanks for posting this issue. I can definitely fix this. Another way to move past this for now is to use tab_style_body():

library(gt)
library(tidyverse)

dplyr::tibble(
  temperature = c(1, 2, NA),
  pulse = c(NA, 1, 1.2)
) |>
  gt() |>
  tab_style_body(
    fn = function(x) is.na(x),
    style = cell_fill(color = "lightblue")
  )

Which gives us this table:

[kwakuduahc1]

Thank you. Your fix is excellent.

[rich-iannone]

I added a clarifying example on how to do this in #1383. So, I'll close this issue now.