On 12/21/2005 5:13 PM, Roger D. Peng wrote:
> Well, who am I to break this long-standing ritual? :)
>
> Interestingly, while the printed output looks wrong, I get
>
> > v <- paste(0:10, "asdf", sep = ".")
> > a <- sub(".asdf", "", v, fixed = TRUE)
> > b <- as.character(0:10)
> > identical(a, b)
> [1] TRUE
> >
>
> -roger
I think finding two separate bugs on the day after the release goes a
bit beyond what is necessary to satisfy the ritual.
Duncan Murdoch
>
> Peter Dalgaard wrote:
>
>>"Roger D. Peng" <[EMAIL PROTECTED]> writes:
>>
>>
>>
>>>I've noticed what I think is curious behavior in using 'sub(fixed = TRUE)'
>>>and
>>>was wondering if my expectation is incorrect. Here is one example:
>>>
>>>v <- paste(0:10, "asdf", sep = ".")
>>>sub(".asdf", "", v, fixed = TRUE)
>>>
>>>The results I get are
>>>
>>>
>>>>sub(".asdf", "", v, fixed = TRUE)
>>>
>>> [1] "0" "1\0st\0\0" "2\0<af>\001\0\0" "3\0<af>\001\0\0"
>>> [5] "4\0mes\0" "5\0<ba>\001\0\0" "6\0\0\0\0\0" "7\0\0\0m\0"
>>> [9] "8\0\0\0t\0" "9\0<fe>\0\0\0" "10\0\0\0\0\0"
>>>
>>>I expected "0" in the first entry and everything else would be unchanged.
>>>Your
>>>results may vary since every time I run 'sub()' in this way, I get a
>>>slightly
>>>different answer in entires 2 through 11.
>>>
>>>As it turns out, 'gsub(fixed = TRUE)' gives me the answer I *actually*
>>>wanted,
>>>which was to replace the string in every entry. But I still think the
>>>behavior
>>>of 'sub(fixed = TRUE) is a bit odd.
>>>
>>>
>>>>version
>>>
>>> _
>>>platform x86_64-unknown-linux-gnu
>>>arch x86_64
>>>os linux-gnu
>>>system x86_64, linux-gnu
>>>status
>>>major 2
>>>minor 2.1
>>>year 2005
>>>month 12
>>>day 20
>>>svn rev 36812
>>>language R
>>>
>>
>>Argh...
>>
>>year 2005
>>month 12
>>day 21
>>
>>and something like this gets discovered. It's a ritual, I tell ya, a ritual!
>>
>>If you look at the output and terminate all strings at the embedded
>>\0, it looks much more sensible, so it should be fairly easy to spot
>>the cause of this bug...
>>
>
>
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