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1999 Feb 28
0
Formatting in formatC and format (PR#129)
...pre-ANSI C 2nd edition of
Kernighan & Ritchie, but I think the ANSI standard is that same. There is a
reference to leading zeroes, none to trailing zeroes. I believe printf can
be system-dependent (and some of it certainly is: win32 libraries use
n.ddde+nnn and Solaris ones use n.ddde+nn not n.dddenn as your help page
says). I think, pessimistically, that it is not safe to rely on how the C
runtime library does this.
BTW, there is a trick here:
format(c(5.9, 6.0), digits=2)[-1]
[1] "6.0"
does what Dr Carsten wanted (but see later for the meaning of digits=2).
In any case,
for...