Bug in rank with utf8?

2015-08-13 8:39 GMT-05:00 Hadley Wickham <h.wickham at gmail.com>:

x <- "\u0663"
y <- 3

x == y
# FALSE
rank(c(x, y))
# c(1.5, 1.5)

?also interesting, and confusing to me:

x == y

[1] FALSE

x > y

[1] FALSE

x < y

[1] FALSE

With some slight changes:

x <- "\u0663"
y <- "3"
xy <- c(x,y)
rank(xy);

[1] 1.5 1.5

Sys.getlocale();

[1]
"LC_CTYPE=en_US.UTF8;LC_NUMERIC=C;LC_TIME=en_US.UTF8;LC_COLLATE=en_US.UTF8;LC_MONETARY=en_US.UTF8;LC_MESSAGES=en_US.UTF8;LC_PAPER=en_US.UTF8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US.UTF8;LC_IDENTIFICATION=C"

Sys.setlocale(category="LC_COLLATE", locale="C");

[1] "C"

rank(xy);

[1] 2 1

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