R devel - Oct 2000 - Bug? (PR#690)

I don´t know if it is a bug, but what's wrong in the folloing (R version
1.1.1, August 15, 2000, under windows 98):
> x<-matrix(nrow=10, ncol=2)
> for (i in 1:10)
+ {
+ x[i][1]<-i
+ x[i][2]<-i^2
+ }
Warning messages:
1: number of items to replace is not a multiple of replacement length
2: number of items to replace is not a multiple of replacement length
3: number of items to replace is not a multiple of replacement length
4: number of items to replace is not a multiple of replacement length
5: number of items to replace is not a multiple of replacement length
6: number of items to replace is not a multiple of replacement length
7: number of items to replace is not a multiple of replacement length
8: number of items to replace is not a multiple of replacement length
9: number of items to replace is not a multiple of replacement length
10: number of items to replace is not a multiple of replacement length

Thanks

Armando Ferreira


----------------------------------------------------------------------------
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Armando Mateus Ferreira
Escuela Técnica Superior de Inginieros Agrónomos y Montes
Universidad de Córdoba-España
Avda. Menendez Pidal, 14080 Córdoba
td2mafea@uco.es

Escola Superior Agrária
6000 Castelo Branco-Portugal
armando@esa.ipcb.pt


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td2mafea@uco.es writes:
> I don´t know if it is a bug, but what's wrong in the folloing (R
version
> 1.1.1, August 15, 2000, under windows 98):
> > x<-matrix(nrow=10, ncol=2)
> > for (i in 1:10)
> + {
> + x[i][1]<-i
> + x[i][2]<-i^2
> + }
> Warning messages:
> 1: number of items to replace is not a multiple of replacement length
> 2: number of items to replace is not a multiple of replacement length
Not a bug. You mean x[i,1] etc. Notice that single-indexing a matrix
ignores dimensions:
> x<-matrix(1:20,nrow=10, ncol=2)
> x[1]
[1] 1
> x[12]
[1] 12


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