[R] prb with data.table

[jim holtman]

I would first recommend upgrading to the latest version of R.  I am
running R 2.12.2 on Windows 7 and it seem to run fine:

>  DT = data.table(x=rep(c("a","b","c"),each=3), y=c(1,3,6), v=1:9)
> setkey(DT,x)
> DT["a"]
     x y v
[1,] a 1 1
[2,] a 3 2
[3,] a 6 3


On Sat, Apr 16, 2011 at 3:30 PM, yoda55 <arnaud.amsellem at gmail.com> wrote:
> R.2.11.1 on Windows 7
>
> When running data.table examples.
>> DT = data.table(x=rep(c("a","b","c"),each=3), y=c(1,3,6), v=1:9)
>> setkey(DT,x)
>> DT["a"]
> I get the following error message
> Erreur dans seq.default(to = xlen, length = n) :
>  length must be non-negative number
>
> When running the test.data.table(), pretty much all the tests fail (see
> below)
> Test 8 Error in seq.default(to = xlen, length = n) :
>  length must be non-negative number
> Test 9 Error in seq.default(to = xlen, length = n) :
>  length must be non-negative number
> .....
>
> Any help appreciated
>
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-- 
Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?