Should file.access(as.character(NA)) return -1 to be consisting with
non-existing files?
> file.access(c("Non-existing-file", NA), mode=1)
Non-existing-file <NA>
-1 0
> file.access(c("Non-existing-file", NA), mode=2)
Non-existing-file <NA>
-1 0
> file.access(c("Non-existing-file", NA), mode=4)
Non-existing-file <NA>
-1 0
/Henrik
> sessionInfo()
R version 2.10.1 Patched (2009-12-24 r50837)
i386-pc-mingw32
locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
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