Hello,
is there any help please.
Regards
2011/10/21 Adel ESSAFI <adeless...@gmail.com>
> Hello
> I am discovering R and I find it is really very powerful.
>
> However, I find some newbie difficulties.
>
> Here, I have a data frame with manu values that I want to calculate the
> frequency (the nomber of line) of the some criteria.
> For exemple here, I want it to print the number of occurence where
> sci[,2]=0 and sci[,1]=L. In my exemple, he is printing the number of the
> line in the result data frame.
> however, I have at least 90 line with sci[,2]=0 and sci[,1]=L.
> Thank you in advance for any input.
>
>
> > aggregate(sci[,5],list(sci[,2],sci[,1]),frequency)
> Group.1 Group.2 x
> 1 0.0 L 1
> 2 0.2 L 1
>
>
> --
> PhD candidate in Computer Science
> Address
> 3 avenue lamine, cité ezzahra, Sousse 4000
> Tunisia
> tel: +216 97 246 706 (+33640302046 jusqu'au 15/6)
> fax: +216 71 391 166
>
--
*PhD candidate in Computer Science
Address
3 avenue lamine, cité ezzahra, Sousse 4000
Tunisia
tel: +216 97 246 706
fax: +216 71 391 166*
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