Message-ID: <CAEhWdG5d7zn=jaGH3jy+FiarJ0cNyECb5FdHjyJ0BH3qi7_18w@mail.gmail.com>
Date: 2011-10-22T13:20:26Z
From: Weidong Gu
Subject: question about aggregate
In-Reply-To: <CAF=-T0g=i92CXWuVeD6FgUeHQhANEZgmhW5s5RDHD_JiKeeGhA@mail.gmail.com>
Is this waht you want?
sci[,5][sci[,2]==0 & sci[,1]==L]
Weidong
On Sat, Oct 22, 2011 at 8:19 AM, Adel ESSAFI <adelessafi at gmail.com> wrote:
> Hi,
> It is not what I want, but, thx anyway.
> Regards
>
>
> 2011/10/22 Weidong Gu <anopheles123 at gmail.com>
>>
>> try this
>>
>> table(sci[,2]=0,sci[,1]=L)
>>
>> Weidong Gu
>>
>> On Sat, Oct 22, 2011 at 7:51 AM, Adel ESSAFI <adel.safi at imag.fr> wrote:
>> > Hello,
>> > is there any help please.
>> > Regards
>> >
>> >
>> > 2011/10/21 Adel ESSAFI <adelessafi at 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, cit? 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, cit? ezzahra, Sousse 4000
>> > Tunisia
>> > tel: +216 97 246 706
>> > fax: +216 71 391 166*
>> >
>> > ? ? ? ?[[alternative HTML version deleted]]
>> >
>> >
>> > ______________________________________________
>> > R-help at r-project.org mailing list
>> > https://stat.ethz.ch/mailman/listinfo/r-help
>> > PLEASE do read the posting guide
>> > http://www.R-project.org/posting-guide.html
>> > and provide commented, minimal, self-contained, reproducible code.
>> >
>> >
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>
>
>
> --
> PhD candidate in Computer Science
> Address
> 3 avenue lamine, cit? ezzahra, Sousse 4000
> Tunisia
> tel: +216 97 246 706 (+33640302046 jusqu'au 15/6)
> fax: +216 71 391 166
>