[R] Aggregating two or more vaiables

[Uwe Ligges]

On 23.11.2011 09:33, aa99 wrote:
> hey;
>
> i am new to R and require some help. i have below table data and i would
> like to aggregate Retail and QSold by BrandName.
>
>
> BrandName	Segment	Retail	QSlod
> Oral B	        Whitening	10	2
> Colgate	Sensitive	20	4
> Colgate	Sensitive	30	6
> Oral B	        Whitening	40	8
> Close Up	Whitening	50	10
> Oral B	        Whitening	60	12
>
>
> OutPut I would like:
>
> BrandName	Retail 	QSlod
> Oral B	        sum(Retail)	Sum (Qsold)
> Colgate		
> Close Up		
>


aggregate(cbind(Retail, QSlod) ~ BrandName, data=dat, sum)

Uwe Ligges


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