[R] Combinig two data frames

[Petr Pikal]

Hi

I would recommend to use list instead

how do you know that the result shall not be
  A    B
 1   NA
 3   5
 4   6
 5   3
 2   5

> A<-1:5
> B<-4:7
> L<-list(A,B)
> L
[[1]]
[1] 1 2 3 4 5

[[2]]
[1] 4 5 6 7

If you insist on data frame you has to tell the program which cells 
are to be empty or if you have common column(s) you can use merge

> CC
  state    psu weight
1 A. P.  Urban      0
2  Mah.  Rural      0
3  W.B.  Rural      0
4  Ass.  Rural      0
5 M. P.  Urban      0
6 A. P.  Urban      0
> CC1
  state    psu aaa
1 A. P.  Urban 1.3
2 A. P.  Rural 1.2
3 M. P.  Urban 0.8
>
 merge(CC,CC1, all=T)
  state    psu weight aaa
1 A. P.  Rural     NA 1.2
2 A. P.  Urban      0 1.3
3 A. P.  Urban      0 1.3
4  Ass.  Rural      0  NA
5 M. P.  Urban      0 0.8
6  Mah.  Rural      0  NA
7  W.B.  Rural      0  NA

HTH
Petr





On 12 Jun 2006 at 14:44, Arun Kumar Saha wrote:

Date sent:      	Mon, 12 Jun 2006 14:44:14 +0530
From:           	"Arun Kumar Saha" <arun.kumar.saha at gmail.com>
To:             	"r-help at stat.math.ethz.ch" <R-help at stat.math.ethz.ch>
Subject:        	[R] Combinig two data frames

> Dear all r-users,
> 
> Suppose I have two data frame:
> 
> A
> 1
> 3
> 4
> 5
> 2
> 
> and
> 
> B
> 5
> 6
> 3
> 5
> 
> Now I want combine this two data frames without losing any value from
> either data frame. More precisely I want to see
> 
>  A    B
> 1   5
> 3   6
> 4   3
> 5   5
> 2   NA
> 
> I tried with cbind function but failed, as it only works when two data
> frames have equal number of rows. Can anyone suggest me any code that
> can be used for any data set?
> 
> Thanks and regards
> 
>  [[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
> http://www.R-project.org/posting-guide.html

Petr Pikal
petr.pikal at precheza.cz