Another thing that I considered, but doesn't seem to be supported, is
rotating the symbols. I noticed that that does work with text. So you
could use a arrow symbol and then specify the angle aesthetic. But this
still relies on text and unfortunately there are no arrowlike symbols in
ASCII: except perhaps 'V'.
I can't say how the support for non-ascii text is over different OS-es
and localities.
https://cran.r-project.org/doc/manuals/r-release/R-exts.html#Encoding-issues
gives some 'hints'
On 06-10-2023 14:21, Chris Evans via R-help wrote:
Thanks again Jan. That is lovely and clean and I probably should have
seen that option.
I had anxieties about the portability of using text. (The function will
end up in my
https://github.com/cpsyctc/CECPfuns package so I'd like it to be fairly
immune to character
sets and different platforms in different countries.
I'm morphing this question a lot now but I guess it's still on topic
really. I know
I need to put in some time to understand the complexities of R and
platforms (I'm
pretty exclusively on Linux, Ubuntu or Debian now so have mostly done
the ostrich thing
about these issues though I do hit problems exchanging things with my
Spanish speaking
colleagues). Jan or anyone: any simple reassurance or pointers to
resources I should
best use for homework about these issues?
TIA (again!)
Chris
On 06/10/2023 12:55, Jan van der Laan wrote:
You are right, sorry.
Another possible solution then: use geom_text instead of geom_point
and use a triangle shape as text:
ggplot(data = tmpTibPoints,
aes(x = x, y = y)) +
geom_polygon(data = tmpTibAreas,
aes(x = x, y = y, fill = a)) +
geom_text(data = tmpTibPoints,
aes(x = x, y = y, label = "▼", color = c),
size = 6) + guides(color = FALSE)
[much snipped]
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