Not sure what happened between 4.0.2 and -devel, but you are using C
collation, which assumes 7-bit single-byte characters, to sort multi-byte
8-bit encoded characters, which looks a bit risky.
-pd
On 19 Jan 2021, at 10:10 , Thierry Onkelinx via R-devel <
r-devel at r-project.org> wrote:
Dear all,
My git2rdata package relies on a stable sorting. I've noticed that
some characters get a different position under R-devel under Windows
10. This is why the unit test of my package only fail in this
combination (
Below is a minimal example to illustrate the problem.
Best regards,
Thierry
data <- readLines("
encoding = "UTF-8", n = 15)
eval(parse(text = paste(tail(data, -3), collapse = "")))
ds$a <- enc2utf8(ds$a)
print(ds$a) # input
Sys.setlocale(locale = "C")
print(sort(ds$a)) # sorted
print(order(ds$a)) # order
print(sessionInfo())
# input
## Win 10 R 4.0.2
[1] "a" "a b" "a\tb" "a\tb\tc" "\ta" "a\t"
[8] "a\nb\nc" "\na" "a\n" "a\"b" "a\"b\"c" "\"b" "a\""
[15] "\"b\"" "a'b" "a'b'c" "'b" "a'" "'b'" "a b c"
[22] "\"NA\"" "'NA'" NA "?" "&" "?" "?"
[29] "?" "\200" "|" "#" "@" "$"
## Win 10 R devel
[1] "a" "a b" "a\tb" "a\tb\tc" "\ta" "a\t"
[8] "a\nb\nc" "\na" "a\n" "a\"b" "a\"b\"c" "\"b" "a\""
[15] "\"b\"" "a'b" "a'b'c" "'b" "a'" "'b'" "a b c"
[22] "\"NA\"" "'NA'" NA "?" "&" "?" "?"
[29] "?" "\200" "|" "#" "@" "$"
## Ubuntu 18.04 R 4.0.3
[1] "a" "a b" "a\tb" "a\tb\tc" "\ta" "a\t" "a\nb"
[8] "a\nb\nc" "\na" "a\n" "a\"b" "a\"b\"c" "\"b" "a\""
[15] "\"b\"" "a'b" "a'b'c" "'b" "a'" "'b'" "a b c"
[22] "\"NA\"" "'NA'" NA "?" "&" "?" "?"
[29] "?" "?" "|" "#" "@" "$"
# sorted
## Win 10 R 4.0.2
[1] "\ta" "\na" "\"NA\"" "\"b" "\"b\"" "#" "$"
[8] "&" "'NA'" "'b" "'b'" "<U+00B5>" "<U+00E0>"
[15] "<U+00E9>" "<U+20AC>" "@" "a" "a\t" "a\tb"
[22] "a\n" "a\nb" "a\nb\nc" "a b" "a b c" "a\"" "a\"b"
[29] "a\"b\"c" "a'" "a'b" "a'b'c" "|"
## Win 10 R devel
[1] "\ta" "\na" "\"NA\"" "\"b" "\"b\"" "#" "$"
[8] "&" "'NA'" "'b" "'b'" "@" "a" "a\t"
[15] "a\tb" "a\tb\tc" "a\n" "a\nb" "a\nb\nc" "a b" "a b c"
[22] "a\"" "a\"b" "a\"b\"c" "a'" "a'b" "a'b'c" "|"
[29] "\200" "\265" "\340" "\347" "\351"
## Ubuntu 18.04 R 4.0.3
[1] "\ta" "\na" "\"NA\"" "\"b" "\"b\"" "#" "$"
[8] "&" "'NA'" "'b" "'b'" "<U+00B5>" "<U+00E0>"
[15] "<U+00E9>" "<U+20AC>" "@" "a" "a\t" "a\tb"
[22] "a\n" "a\nb" "a\nb\nc" "a b" "a b c" "a\"" "a\"b"
[29] "a\"b\"c" "a'" "a'b" "a'b'c" "|"
# order
## Win 10 R 4.0.2
[1] 5 9 22 13 15 32 34 26 23 18 20 28 27 29 25 30 33 1 6 3 4 10
[26] 21 14 11 12 19 16 17 31 24
## Win 10 R devel
[1] 5 9 22 13 15 32 34 26 23 18 20 33 1 6 3 4 10 7 8 2 21 14 11
[26] 16 17 31 30 28 27 29 25 24
## Ubuntu 18.04 R 4.0.3
[1] 5 9 22 13 15 32 34 26 23 18 20 28 27 29 25 30 33 1 6 3 4 10
[26] 21 14 11 12 19 16 17 31 24
R version 4.0.2 (2020-06-22)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 18363)
Matrix products: default
locale:
[1] C
system code page: 1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] compiler_4.0.2 fortunes_1.5-4
R Under development (unstable) (2021-01-13 r79826)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 18363)
Matrix products: default
locale:
[1] C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] compiler_4.1.0
R version 4.0.3 (2020-10-10)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 18.04.5 LTS
Matrix products: default
BLAS: /usr/lib/x86_64-linux-gnu/blas/libblas.so.3.7.1
LAPACK: /usr/lib/x86_64-linux-gnu/lapack/liblapack.so.3.7.1
locale:
[1] LC_CTYPE=C LC_NUMERIC=C
[3] LC_TIME=C LC_COLLATE=C
[5] LC_MONETARY=C LC_MESSAGES=nl_BE.UTF-8
[7] LC_PAPER=nl_BE.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=nl_BE.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] compiler_4.0.3 fortunes_1.5-4
ir. Thierry Onkelinx
Statisticus / Statistician
Vlaamse Overheid / Government of Flanders
INSTITUUT VOOR NATUUR- EN BOSONDERZOEK / RESEARCH INSTITUTE FOR NATURE
AND FOREST
Team Biometrie & Kwaliteitszorg / Team Biometrics & Quality Assurance
thierry.onkelinx at inbo.be
Havenlaan 88 bus 73, 1000 Brussel
www.inbo.be
///////////////////////////////////////////////////////////////////////////////////////////
To call in the statistician after the experiment is done may be no
more than asking him to perform a post-mortem examination: he may be
able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher
The plural of anecdote is not data. ~ Roger Brinner
The combination of some data and an aching desire for an answer does
not ensure that a reasonable answer can be extracted from a given body
of data. ~ John Tukey