[R] copy the columns based on the code
sarah.goslee at gmail.com
Mon Mar 26 19:24:36 CEST 2012
"The problem is that it gives the result that I want."
That's a new sort of problem.
You show two different merge() commands. What do you expect to happen,
vs what does happen?
On Mon, Mar 26, 2012 at 10:12 AM, MSousa <ricardosousa2000 at clix.pt> wrote:
> Thanks for the reply.
> I am using the function you gave me.
> complete.travel<-merge(travel, city, by.x = "Source", by.y = "cod", all =
> complete.travel<-merge(travel, city, by.x = "Destine", by.y = "cod", all =
> The problem is that it gives the result that I want
> The idea is based on the column of source and intended Identify the
> cities and put a new data structure
> The idea is something like this.
> pos Source city Destine city_destine
> 1 1 Barcelona 2 Madrid
> 1 1 Barcelona 3 Lisbon
> 2 3 Lisbon 4 Milan
> 3 2 Madrid 4 Milan
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