With today's r-devel, help(seq) says:
The last generates the sequence '1, 2', ..., 'length(along)',
unless the argument is of length 1 when it is interpreted as a
'length' argument.
referring to the usage
seq(along)
This is not true for 0:
> seq(0)
[1] 1 0
> seq(length = 0)
numeric(0)
I'm not sure what the intended behaviour of seq(0) is, but either seq() or the
help page should be fixed.
Also, the exception (naturally) holds only for _numeric_ arguments of length
1.
Deepayan
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