[R] Apply() on columns

[Rui Barradas]

Hello,

It's not that complicated.



f <- function(index, dat, offset=5){
	x <- data.frame(Emp=dat[, index], Hours=dat[, index + offset])
	aggregate(Hours~Emp, data=x, sum)
}

sp <- read.table("supermarkt.txt")

lapply(1:5, f, sp)


Also, please provide context. (Quote the post you are reffering to.)

Hope this helps,

Rui Barradas

Em 25-06-2012 11:43, faelsendoorn escreveu:
> I do now know how to navigate through the table.
> But my question is, what kind of graphical and numerical summaries can I
> make with keeping in mind that I am interested in the average working hour
> per employee?
>
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