Dear package developers,
I am struggling with an error on R devel (all flavors) that I cannot
reproduce with a freshly installed R-devel on my machine: Function
halfnormal in package DoE.base places the greek letter alpha in the
title of a figure. I changed the code to using plotmath about a month
ago (on CRAN request), and everything seemed fine then. Now, however,
R-devel produces an error message
(https://www.r-project.org/nosvn/R.check/r-devel-windows-x86_64/DoE.base-00check.html):
Error in title(...) :
conversion failure on 'Plot for rnorm.12., method = Lenth, α = 0.05'
in 'mbcsToSbcs': for α (U+03B1)
Calls: halfnormal ... <Anonymous> -> plot -> plot.default -> localTitle
-> title
Execution halted
CRAN threaten to archive the package because of that error - so I would
really appreciate help on finding out what I should do (apart from nasty
things like writing alpha instead of using the greek letter).
The code in function halfnormal that creates the title in question looks
as follows:
## added August 1 5 2014, modified Oct 17 2023
if (is.null(titel)){
titel <- as.expression(bquote("Plot for "*.(xnam)*", "*alpha ==
.(alpha)))
dots$main <- titel
}
The list dots is later used in "do.call(plotfun, dots)".
Any recommendations?
Thanks and regards,
Ulrike
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