[R] RES: Help with the 'reshape' package

Petr, many thanks. It´s very straightforward to to deal with the package, I had different sources of revenues for same company, same month, like below, and just by adding "sum" at the end of the function it collapsed values from all sources. Very useful! Cheers cast(dta, Data~Company, value="Re

[R] RES: help

> a <- matrix(c(1:4),ncol=2) > b <- matrix(c(5:8),ncol=2) > a [,1] [,2] [1,]13 [2,]24 > b [,1] [,2] [1,]57 [2,]68 > a+b [,1] [,2] [1,]6 10 [2,]8 12 Atenciosamente, Leandro Lins Marino Centro de Avaliação Fundação CESGRANRIO Rua Santa