Re: [R] How to add some of data in the first place dataset

From: Arne Henningsen <ahenningsen_at_email.uni-kiel.de>
Date: Thu 28 Apr 2005 - 00:28:05 EST

If you want to add rows to a data frame using rbind, your additional rows must be in a data frame with the same (column) names.

R> data( iris )
R> a <- data.frame( Sepal.Length=c(1:4), Sepal.Width=c(2:5),   Petal.Length=c(3:6), Petal.Width=c(4:7), Species=rep("rosa",4)) R> b <- iris[1:10,]
R> rbind(a,b)

   Sepal.Length Sepal.Width Petal.Length Petal.Width Species

1           1.0         2.0          3.0         4.0    rosa
2           2.0         3.0          4.0         5.0    rosa
3           3.0         4.0          5.0         6.0    rosa
4           4.0         5.0          6.0         7.0    rosa
11          5.1         3.5          1.4         0.2  setosa
21          4.9         3.0          1.4         0.2  setosa
31          4.7         3.2          1.3         0.2  setosa
41          4.6         3.1          1.5         0.2  setosa
5           5.0         3.6          1.4         0.2  setosa
6           5.4         3.9          1.7         0.4  setosa
7           4.6         3.4          1.4         0.3  setosa
8           5.0         3.4          1.5         0.2  setosa
9           4.4         2.9          1.4         0.2  setosa
10          4.9         3.1          1.5         0.1  setosa


Arne

On Wednesday 27 April 2005 15:48, Muhammad Subianto wrote:
> Dear R-help,
> First I apologize if my question is quite simple.
> I need add some of data in the first place my dataset, how can I do that.
> I have tried with rbind, but I did not succes.
> 0.1 3.6 0.4 0.9 rose
> 4.1 4.0 1.2 1.2 rose
> 4.4 3.2 1.9 0.5 rose
> 4.6 1.1 1.1 0.2 rose
> For example,
>
> > data(iris)
> > iris[1:10,]
>
> Sepal.Length Sepal.Width Petal.Length Petal.Width Species
> 1 5.1 3.5 1.4 0.2 setosa
> 2 4.9 3.0 1.4 0.2 setosa
> 3 4.7 3.2 1.3 0.2 setosa
> 4 4.6 3.1 1.5 0.2 setosa
> 5 5.0 3.6 1.4 0.2 setosa
> 6 5.4 3.9 1.7 0.4 setosa
> 7 4.6 3.4 1.4 0.3 setosa
> 8 5.0 3.4 1.5 0.2 setosa
> 9 4.4 2.9 1.4 0.2 setosa
> 10 4.9 3.1 1.5 0.1 setosa
>
> The result something like this,
>
> 0.1 3.6 0.4 0.9 rose
> 4.1 4.0 1.2 1.2 rose
> 4.4 3.2 1.9 0.5 rose
> 4.6 1.1 1.1 0.2 rose
> 5.1 3.5 1.4 0.2 setosa
> 4.9 3.0 1.4 0.2 setosa
> 4.7 3.2 1.3 0.2 setosa
> 4.6 3.1 1.5 0.2 setosa
> 5.0 3.6 1.4 0.2 setosa
> 5.4 3.9 1.7 0.4 setosa
> 4.6 3.4 1.4 0.3 setosa
> 5.0 3.4 1.5 0.2 setosa
> 4.4 2.9 1.4 0.2 setosa
> 4.9 3.1 1.5 0.1 setosa
>
> Sincerely,
> Muhammad Subianto
>
> ______________________________________________
> R-help@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

-- 
Arne Henningsen
Department of Agricultural Economics
University of Kiel
Olshausenstr. 40
D-24098 Kiel (Germany)
Tel: +49-431-880 4445
Fax: +49-431-880 1397
ahenningsen@agric-econ.uni-kiel.de
http://www.uni-kiel.de/agrarpol/ahenningsen/

______________________________________________
R-help@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
Received on Thu Apr 28 00:38:31 2005

This archive was generated by hypermail 2.1.8 : Fri 03 Mar 2006 - 03:31:27 EST