(In hindsight I should have used a `zero.print` value that looked less like a
typo, e.g. `zero.print = "--"` in my example. Sorry about the potential
confusion.)
-----Original Message-----
From: R-help <r-help-boun...@r-project.org> On Behalf Of Marttila Mikko via
R-help
Sent: Friday, 23 May 2025 13:21
To: Howard, Tim G (DEC) <tim.how...@dec.ny.gov>; R mailing list
<r-help@r-project.org>
Subject: Re: [R] Formatting zeroes with prettyNum
Tim,
The purpose of the `replace.zero` argument is to allow longer replacements.
See for example the behaviour with a character vector input:
> prettyNum("0", zero.print = "- ", replace.zero = TRUE)
[1] "- "
I'm pretty sure this is a bug, and have now posted the relevant details on
r-devel.
A fix would be below.
Best,
Mikko
diff --git a/src/library/base/R/format.R b/src/library/base/R/format.R index
63fef83..1afadd3 100644
--- a/src/library/base/R/format.R
+++ b/src/library/base/R/format.R
@@ -338,7 +338,7 @@ prettyNum <-
big.mark=big.mark, big.interval=big.interval,
small.mark=small.mark, small.interval=small.interval,
decimal.mark=decimal.mark, zero.print=zero.print,
- drop0trailing=drop0trailing, ...)
+ replace.zero=replace.zero,
+ drop0trailing=drop0trailing, ...)
}
## be fast in trivial case, when all options have their default, or "match"
nMark <- big.mark == "" && small.mark == "" && (notChar || decimal.mark ==
input.d.mark)
-----Original Message-----
From: Howard, Tim G (DEC) <tim.how...@dec.ny.gov>
Sent: Friday, 23 May 2025 13:18
To: Marttila Mikko <mikko.martt...@orionpharma.com>; R mailing list
<r-help@r-project.org>
Subject: RE: Formatting zeroes with prettyNum
[You don't often get email from tim.how...@dec.ny.gov. Learn why this is
important at https://aka.ms/LearnAboutSenderIdentification ]
You fed it two characters, "dash" and "space" and it only wanted one character
so it truncated to the first character and warned you that that's what it did.
If you had your space before the dash, it would have used that as your
replacement character
> prettyNum(0, zero.print = " - ", replace = TRUE)
[1] " "
Warning message:
In .format.zeros(x, zero.print, replace = replace.zero) :
'zero.print' is truncated to fit into formatted zeros; consider 'replace=TRUE'
When zero.print is only one character, it doesn't give a warning.
Tim
> -----Original Message-----
> From: R-help <r-help-boun...@r-project.org> On Behalf Of Marttila
> Mikko via R-help
> Sent: Friday, May 23, 2025 7:07 AM
> To: R mailing list <r-help@r-project.org>
> Subject: [R] Formatting zeroes with prettyNum
>
> ATTENTION: This email came from an external source. Do not open
> attachments or click on links from unknown senders or unexpected emails.
>
>
> Dear list,
>
> Have I stumbled upon a bug, or am I holding `prettyNum()` wrong?
> Please see below.
>
> Best,
>
> Mikko
>
> > prettyNum(0, zero.print = "- ", replace.zero = TRUE)
> [1] "-"
> Warning message:
> In .format.zeros(x, zero.print, replace = replace.zero) :
> 'zero.print' is truncated to fit into formatted zeros; consider
> 'replace=TRUE'
>
> > prettyNum(0, zero.print = "- ", replace = TRUE)
> [1] "-"
> Warning message:
> In .format.zeros(x, zero.print, replace = replace.zero) :
> 'zero.print' is truncated to fit into formatted zeros; consider
> 'replace=TRUE'
>
>
>
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