Full_Name: Xiao Gang FAN
Version: 2.4.0
OS: Windows XP
Submission from: (NULL) (159.50.101.9)
Dear All,
This is not really a bug report, but rather a change wish to the Base R
behaviour
on some functions when applying them to character strings vectors/matrices.
Actually in R, we can do thinks like, the most naturally way in this the world:
> "a" < "b"
[1] TRUE
> order(c("b","a"))
[1] 2 1
> pmax(c("a","b"), c("b"))
[1] "b" "b"
But helas, we can't do things like:
> max(c("a","b"))
Error in max(..., na.rm = na.rm) : invalid 'type' (character) of argument
> range(c("z","b","w","c"))
Error in min(..., na.rm = na.rm) : invalid 'type' (character) of argument
> which.min(c("b","a"))
integer(0)
Warning message:
NAs introduced by coercion
I hope that you could understand the incoherence exhibited here
and my wish to see that to be changed some day, say in the becoming
year 2007. Here's a first list of functions to be reviewed:
min(), max(), which.min(), which.max(), range(), ...
Best regards and happy holidays to all of you !
--
Fan
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