[R] copy the columns based on the code
ricardosousa2000 at clix.pt
Mon Mar 26 16:12:24 CEST 2012
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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