[R] merging two data frame with colomns of different length

Julien Beguin julien.beguin.1 at ulaval.ca
Fri Jul 31 20:05:11 CEST 2009


I forgot to mention that I tried with "merge" and "join" (package analogue)
without success...

Julien

Selon Julien Beguin <julien.beguin.1 at ulaval.ca>, 31.07.2009:

> Dear all,
>
> I am trying to merge two data frames based on a common column but for this
> common column both data frame do not have the same length and associated
> information. I checked previous exemples in the list but was not able to
> apply
> them in my case... Is someone know how to do that? Below is my code with the
> expected result:
>
> # data frame 1
> Id1 <- c(1,1,1,2,2,2,3,3,3)
> Habit1 <- c('a','a','a','b','b','b','d','d','d')
> Id01 <- paste(Id1, Habit1,sep=".")
> data1 <- data.frame(Id01)
>
> # data frame 2
> Id2 <- c(1,2,3,3)
> Habit2 <- c('a','b','d','d')
> Id02 <- paste(Id2, Habit2,sep=".")
> Area <- c(10,2,3,5)
> data2 <- data.frame(cbind(Id02, Area))
>
> # result that I would like
> Area2 <- c(10, 0, 0, 2, 0, 0, 3, 5, 0)
> result <- data.frame(cbind(Id01, Area2))
>
> Thank's
>
> --
>
> Julien Beguin
>
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>
--
Julien Beguin
Etudiant au doctorat
Faculté de Foresterie et de Géomatique
Université Laval, local 2113
2405 rue de la Terrasse, G1V 0A6 Québec (Qc)
Tel: (418) 656-2131 poste 2620
http://www.cen.ulaval.ca/anticosti/jbeguin.html




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