Hi
you shall:
use appropriate subject e.g. how to subset data
use [ ] brackets
initialize object donC before using it for assignment
and maybe try to look to some docummentation how to manipulate R objects
(Paul Johnsons R tips are easily found by Google and they help me a lot
during my first steps)
BTW split(don[, some.columns], don$Id_Cara) could maybe do what you want
without using for cycle
Regards
Petr Pikal
[EMAIL PROTECTED]
[EMAIL PROTECTED] napsal dne 24.04.2007 11:48:48:
> I wanna display some data which there are subsets of a dataframe called
"don"
> but there are errors like this
>
> > L=as.numeric(levels(factor(don$Id_Cara)))
> > for(i in L){
> + donC(i)=subset(don, Id_Cara == i, select = c( Id_TrT1, Id_Geno,
Id_Rep, Val_O))
> + donC(i)
> + }
> Erreur dans donC(i) = subset(don, Id_Cara == i, select = c(Id_TrT1,
Id_Geno, :
> impossible de trouver la fonction "donC<-"
>
> I understand that the problem comes from the third line
>
> it doesn't reconize "donC(i)" but it's very important to make one
"boucle"
> (in french) on the L's elements.
>
> to tell more about L :
>
> > L
> [1] 103 137 138 177 193 308
>
>
>
>
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