On 3 Aug 2011, at 17:46, Sarah Goslee wrote:
> Hi Federico,
>
> A forward slash isn't a special character:
>
>> strsplit("T/T", "/")
> [[1]]
> [1] "T" "T"
>
> so there's some other problem.
>
> Are you sure that your first column contains strings and not factors?
> What does str(my.data) tell you?
>
> Does
> strsplit(as.character(my.data[1,1]), "/")
> work?
yes!
Thanks
Federico
>
> If you used read.table() to get your data in, you might want the
> as.is=TRUE or the stringsAsFactors=FALSE argument.
>
> Sarah
>
> On Wed, Aug 3, 2011 at 12:37 PM, Federico Calboli
> <f.calb...@imperial.ac.uk> wrote:
>> Hi All,
>>
>> is there a way of using strsplit with a forward slash '/' as the splitting
>> point?
>>
>> For data such as:
>>
>> 1 T/T C/C 16/33
>> 2 T/T C/C 33/36
>> 3 T/T C/C 16/34
>> 4 T/T C/C 16/31
>> 5 C/C C/C 28/29
>> 6 T/T C/C 16/34
>>
>> strsplit(my.data[1,1], "/") # and any variation thereof
>> Error in strsplit(apoe[1, 1], "/") : non-character argument
>>
>> Any advice will be gratefully received.
>>
>> Best wishes,
>>
>> Federico
>>
>>
>
>
> --
> Sarah Goslee
> http://www.sarahgoslee.com
--
Federico C. F. Calboli
Department of Epidemiology and Biostatistics
Imperial College, St. Mary's Campus
Norfolk Place, London W2 1PG
Tel +44 (0)20 75941602 Fax +44 (0)20 75943193
f.calboli [.a.t] imperial.ac.uk
f.calboli [.a.t] gmail.com
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