request additional format for list_valid_format_labels()

[wtagr]

As a study statistician, I want to add the format of "xx.x : xx.x" or customized format in list_valid_format_labels(), so that i could create the designated format. Thanks.

[wtagr]

I thought it was old issue, but not: i am thinking the customed format could be shown in the shell style.

[edelarua]

Hi @wtagr,

For a quick solution, you can make your own custom formatting functions to use in your work as follows:

library(formatters)
fmtfun <- sprintf_format("%.1f : %.1f")
format_value(list(1.015, 52.742), format = fmtfun)
#> [1] "1.0 : 52.7"

^{Created on 2025-05-08 with reprex v2.1.1}

[wtagr]

Hi @wtagr,

For a quick solution, you can make your own custom formatting functions to use in your work as follows:

library(formatters)
fmtfun <- sprintf_format("%.1f : %.1f")
format_value(list(1.015, 52.742), format = fmtfun)
#> [1] "1.0 : 52.7"
Created on 2025-05-08 with reprex v2.1.1

Thanks! yes, this works for the real data; however, I am using table_shell() for shell. For the customized format, it shows , rather xx.x : xx.x.

[edelarua]

Ah I see! You are correct then; it's not currently possible to display formats in the table shell unless they are from the list of valid formats in {formatters}.

This was discussed recently here: insightsengineering/rtables#1022