[R] How to use tapply with more than one variables grouped

[Bert Gunter]

Inline.

On Mon, Oct 22, 2012 at 6:55 AM, PIKAL Petr <petr.pikal at precheza.cz> wrote:
> Hi
>
>
>> -----Original Message-----
>> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
>> project.org] On Behalf Of noobmin
>> Sent: Monday, October 22, 2012 12:31 PM
>> To: r-help at r-project.org
>> Subject: Re: [R] How to use tapply with more than one variables grouped
>>
>> interTable <-data.frame (Tapply ($ contb_receipt_amt date, list ($
>> cand_nm date, $ contbr_st date), sum))
>>
>> I got create a table with the sum total contribution
>> (contb_receipt_amt) of each presidential candidate (cand_nm) in each
>> state (contbr_st). How could from interTable create a table of  states
>> where candidate 'Obama' has received greater Contribution?
>
> Greater than what? How does the table look like? Sorry I forgot my crystal ball at home.
>
> Maybe you want to look to
>
> ?"]"

-- or ?"["  rather.  :-)

-- Bert


>
> Regards
> Petr
>
>
>>
>> thanks
>>
>>
>>
>> --
>> View this message in context: http://r.789695.n4.nabble.com/How-to-use-
>> tapply-with-more-than-one-variables-grouped-tp4646948p4646985.html
>> Sent from the R help mailing list archive at Nabble.com.
>>
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>
> ______________________________________________
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> and provide commented, minimal, self-contained, reproducible code.



-- 

Bert Gunter
Genentech Nonclinical Biostatistics

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