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A general description is here.
Encoding name ‘"utf8"’ is mapped to ‘"UTF-8"’. Many implementations of ‘iconv’ accept ‘"utf8"’, but not GNU ‘libiconv’ (including the current version 1.15).
‘sessionInfo()’ shows the full paths to the library or executable files providing the BLAS/LAPACK implementations currently in use (not available on Windows).
The binning algorithm used by bandwidth selectors ‘bw.ucv()’, ‘bw.bcv()’ and ‘bw.SJ()’ switches to a version linear in the input size ‘n’ for ‘n > nb/2’. (The calculations are the same, but for large ‘n/nb’ it is worth doing the binning in advance.)
‘R CMD Rd2pdf’ had problems with packages with non-ASCII titles in ‘.Rd’ files (usually the titles were omitted).