On 02/09/2021 11:24 a.m., b...@denney.ws wrote:
Hello,
In the janitor package, we want to optionally support conversion from
Unicode characters that visually map to mu or micro to the character "u".
For that, we were thinking to create an unexported character vector constant
with names of all the Unicode mu/micro characters and values of "u". As a
work-around, I was able to fix the issue using setNames(), but it was a
non-intuitive fix, and I would prefer to just use create the named character
vector directly.
I think the warning comes because on non-UTF8 platforms there are
operations that will mess up names. So using setNames() may fool the
check, but it probably won't solve the problem.
On the other hand, I think all current platforms handle UTF8 data fine,
so keeping the vector of characters as data should be fine. Then the
base chartr() function could do your translation for you.
To do the translation you want, you'd use something like
original <- "45 \u00b5m"
chartr("\u00b5\u03bc\u3382\u338c\u338d\u3395\u339b\u33b2\u33b6\u33bc",
"uuuuuuuuuu", original)
Duncan Murdoch
Is there a good way to prevent the warnings below?
When running the following (on Windows 10 with R 4.1.0) either during a
normal R session or while checking the package (via devtools::check()), we
get several warnings:
mu_to_u <-
c(
"\u00b5"="u", "\u03bc"="u", "\u3382"="u", "\u338c"="u", "\u338d"="u",
"\u3395"="u", "\u339b"="u", "\u33b2"="u", "\u33b6"="u", "\u33bc"="u"
)
Warnings in file 'R/clean_names.R':
unable to translate '<U+3382>' to native encoding
unable to translate '<U+338C>' to native encoding
unable to translate '<U+338D>' to native encoding
unable to translate '<U+3395>' to native encoding
unable to translate '<U+339B>' to native encoding
unable to translate '<U+33B2>' to native encoding
unable to translate '<U+33B6>' to native encoding
unable to translate '<U+33BC>' to native encoding
I tried wrapping this in suppressWarnings(), but the warnings still
occurred.
Thanks,
Bill
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