On Sun, 4 Jul 2021 13:59:49 +1200 Rolf Turner <r.tur...@auckland.ac.nz> wrote:
> a substantial number of the characters are displayed as a wee > rectangle containing a 2 x 2 array of digits such as > > > 0 0 > > 8 0 Interesting. I didn't pay attention to it at first, but now I see that a range of code points, U+0080 to U+009F, corresponds to control characters (also, 0+00A0 is non-breakable space), not anything printable. Also, Latin-1 doesn't define any meaning for bytes 0x80..0x9f, but here they are decoded to same-valued Unicode code points. And the actual code point for € is U+20AC, not even close to what we're working with. > Also note that there is a bit of difference between the results of > using Encoding() and the results of using iconv() You are right. I didn't know that, but my reading of the function translateToNative in src/main/sysutils.c suggests that R decodes strings marked as 'latin1' as Windows-1252 (if it's available for the system iconv()) and uses the actual Latin-1 as a fallback. ?Encoding does warn that 'latin1' is ambiguous and system-dependent with regards to bytes 0x80..0x9f, so text() seems to be right to use Latin-1 and not Windows-1252 when trying to plot byte 0x80 encoded as CE_LATIN1 as U+0080. Although there's a /* FIXME: allow CP1252? */ comment in src/main/sysutils.c, function reEnc, which is used by text(). > Is there any way that I can get the Euro symbol to display correctly > in such a graphic? I think that iconv(a, 'CP1252', '', '\ufffd') should work for you. At least it seems to work for the € sign. It does leave the following bytes undefined, represented as � U+FFFD REPLACEMENT CHARACTER: as.raw(which(is.na( iconv(sapply(as.raw(1:255), rawToChar), 'CP1252', '') ))) # [1] 81 8d 8f 90 9d Not sure what can be done about those. With Latin-1, they would correspond to unprintable control characters anyway. -- Best regards, Ivan ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
