[datatable-help] A special character in a string borks data.table

[Chris Neff]

It is the source straight from SVN.  I've also found it randomly
segfaulting on me today, and have not been able to reproduce how.  But
an hour back on the CRAN version and I haven't hit a segfault.

On 15 November 2011 15:23, Matthew Dowle <mdowle at mdowle.plus.com> wrote:
> Is that with 1.7.3 on R-Forge? If so I think I know.
>
>> I have a data.frame DF with a factor column "foo", it has X unique
>> levels. When I do
>> DT=data.table(DF)
>> key(DT) = "foo"
>>
>> DT then has X-1 unique levels, and one repeated level. I then
>> continually get messages saying that repeated levels are no longer
>> allowed.
>>
>> The level that goes missing looks like:
>>
>> "blahblah�0123456789"
>>
>>
>> There is a special character that I don't know what it is in there I
>> hope it shows through in the email.
>> After setting key(DT) , there is a completely different level that is
>> duplicated, and the level above goes missing.
>>
>>
>> I'm not quite sure how to replicate this with data I can show. It
>> seems a weird bug.  Any thoughts?
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>
>
>