[Rd] Out of bounds negative index
Vincent Goulet
vincent.goulet at act.ulaval.ca
Fri May 2 21:23:47 CEST 2008
Hi,
From the R Language Definition, Section 3.4.1:
"If i is positive and exceeds length(x) then the corresponding
selection is NA. A negative out of bounds value for i causes an error."
(This is also mentioned in S Programming, footnote of page 24.)
Can someone please provide an example triggering the error? Looking in
src/main/subscript.c I could not find exception handling for |i| >
length(x), unless the negative subscript is mixed with NAs. In other
cases, out of bounds negative indexes just seem silently ignored.
Did I missed or misinterpreted something, here?
Thanks in advance
---
Vincent Goulet, Associate Professor
École d'actuariat
Université Laval, Québec
Vincent.Goulet at act.ulaval.ca http://vgoulet.act.ulaval.ca
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