This was introduced in 4.3.0 (hence Rui cannot reproduce it in 4.2.3).
It's a bug and was introduced when fixing this other bug:
https://bugs.R-project.org/show_bug.cgi?id=18476
https://hypatia.math.ethz.ch/pipermail/r-help/2023-February/476960.html
Apparently, it only affects the case with n = 2 for diverging and
divergingx palettes. The culprit is this line:
i <- if(n2 == 1L) 0 else seq.int(1, by = -2/(n - 1), length.out = n2)
I think n2 == 1L is not the right condition and we need to distinguish n =
1 and n = 2.
Will have a closer look...
Thanks for reporting this!
Achim
On Fri, 28 Apr 2023, Rui Barradas wrote:
Às 06:01 de 28/04/2023, Stevie Pederson escreveu:
Hi,
I'm not sure if this is a bug or a feature, but after updating to Rv4.3, if
requesting two colours from hcl.colors() you now get the same colour twice.
This occurs for all palettes I've tried. My reprex:
hcl.colors(2, "Vik")
[1] "#F1F1F1" "#F1F1F1"
As I have multiple workflows I run repeatedly with A vs B comparisons, this
has just broken the visualisations in many of them. Obviously a
workaround is hcl.colors(3, "Vik")[c(1, 3)] but this seems rather
unintuitive.
Thanks in advance,
Stevie
sessionInfo()
R version 4.3.0 (2023-04-21)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 20.04.6 LTS
Matrix products: default
BLAS: /usr/lib/x86_64-linux-gnu/blas/libblas.so.3.9.0
LAPACK: /usr/lib/x86_64-linux-gnu/lapack/liblapack.so.3.9.0
locale:
[1] LC_CTYPE=en_AU.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_AU.UTF-8 LC_COLLATE=en_AU.UTF-8
[5] LC_MONETARY=en_AU.UTF-8 LC_MESSAGES=en_AU.UTF-8
[7] LC_PAPER=en_AU.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_AU.UTF-8 LC_IDENTIFICATION=C
time zone: Australia/Adelaide
tzcode source: system (glibc)
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] compiler_4.3.0 tools_4.3.0
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Hello,
I cannot reproduce this on Windows.
hcl.colors(2, "Vik")
# [1] "#002E60" "#3E2000"
clrs <- sapply(hcl.pals(), \(p) hcl.colors(2, p))
any(apply(clrs, 2, \(x) x[1] == x[2]))
# [1] FALSE
sessionInfo()
# R version 4.2.3 (2023-03-15 ucrt)
# Platform: x86_64-w64-mingw32/x64 (64-bit)
# Running under: Windows 10 x64 (build 22621)
#
# Matrix products: default
#
# locale:
# [1] LC_COLLATE=Portuguese_Portugal.utf8 LC_CTYPE=Portuguese_Portugal.utf8
# [3] LC_MONETARY=Portuguese_Portugal.utf8 LC_NUMERIC=C
# [5] LC_TIME=Portuguese_Portugal.utf8
#
# attached base packages:
# [1] stats graphics grDevices utils datasets methods base
#
# loaded via a namespace (and not attached):
# [1] compiler_4.2.3
Hope this helps,
Rui Barradas
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
