On 2020-07-24 01:48 +0200, Rasmus Liland wrote:
> aggregate(x=list("values"=mydata$values),
> by=list("sex"=mydata$sex,
> "status"=mydata$status),
> FUN=sum)
>
> yields
>
> sex status values
> 1 0 0 224
> 2 1 0 5227
> 3 0 1 11
> 4 1 1 552
After reading more in ?aggregate, I
realized this does the same thing ...
aggregate(formula=formula("values~sex+status"),
FUN=sum,
data=mydata)
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