[R] counting the number of times a string appears

[Greg Hirson]

Jesse,

see ?table and try

table(stringVector)

Greg

On 1/13/10 2:12 PM, Jesse Sinclair wrote:
> Hi all,
>
> I have a vector of strings and need to count the number of times a string
> appears in the vector.
>
> eg:
>
>   [1] spp6  spp10 spp6  spp6  spp4  spp2  spp9  spp10 spp5  spp2  spp2  spp3
>   [13] spp4  spp3  spp6  spp10 spp6  spp4  spp9  spp3  spp6  spp1  spp10 spp8
>
>   [25] spp2  spp10 spp9  spp7  spp1  spp3  spp8  spp6  spp3  spp8  spp6  spp5
>
>   [37] spp5  spp9  spp3  spp1  spp4  spp5  spp9  spp3  spp3  spp5  spp4  spp9
>
>   [49] spp3  spp7  spp7  spp2  spp6  spp5  spp7  spp4  spp8  spp9  spp2  spp6
>
>   [61] spp3  spp3  spp2  spp6  spp3  spp5  spp6  spp6  spp4  spp1  spp1  spp1
>
>   [73] spp10 spp8  spp1  spp6  spp1  spp5  spp8  spp9  spp5  spp6  spp9
> spp10
>   [85] spp2  spp6  spp10 spp1  spp2  spp3  spp5  spp8  spp2  spp7  spp4  spp7
>
>   [97] spp2  spp6  spp2  spp6
>
> Is it possible to create a vector of counts for each spp1-spp10?
>
> Any help or ideas would be appreciated.
>
> Cheers,
> Jesse
>
> 	[[alternative HTML version deleted]]
>
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>    

-- 
Greg Hirson
ghirson at ucdavis.edu

Graduate Student
Agricultural and Environmental Chemistry

1106 Robert Mondavi Institute North
One Shields Avenue
Davis, CA 95616