On Apr 29, 2013, at 6:54 AM, De Castro Pascual, Montserrat wrote:
> Hi everybody,
>
>
>
> I have a list, where every element of this list is a data frame.
>
>
>
> An example:
>
>
>
> Mylist<-list(A=data.frame, B=data.frame, C=data.frame, D=data.frame)
I'm looking at this apparently malformed command and wondering if that is the
root of all your problems. Do you know how to make a simple successful example
of a list of dataframes?
--
David.
> I want to rbind some elements of this list.
>
> As an example:
>
>
>
> Output<-list(AB=data.frame, CD=data.frame)
>
>
>
> Where
>
> AB=rbind(A,B)
>
> CD=rbind(C,D)
>
>
>
>
>
> I’ve tried:
>
>
>
> f<-function(x){
>
> for (i in seq(1,length(names(x)),2)){
>
> aa<-do.call(rbind,x[i:i+1])
>
> aa
>
> }}
>
> bb<-f(mylist)
>
>
>
> or
>
>
>
> f<-function(x){
>
> for (i in seq(1,length(names(x)),2)){
>
> aa[i]<-do.call(rbind,x[i:i+1])
>
> list(aa[i])
>
> }}
>
> bb<-f (mylist)
>
>
>
> but it doesn’t works!!!!
>
>
>
> f<-function(x){
>
> + for (i in seq(1,length(names(x)),2)){
>
> + aa<-do.call(rbind,x[i:i+1])
>
> + aa
>
> + }}
>
>> bb<-f(mylist)
>
>> bb
>
> NULL
>
>> f<-function(x){
>
> + for (i in seq(1,length(names(x)),2)){
>
> + aa<-do.call(rbind,x[i:i+1])
>
> + aa
>
> + }}
>
>> bb<-f(mylist)
>
>>
>
>> f<-function(x){
>
> + for (i in seq(1,length(names(x)),2)){
>
> + aa[i]<-do.call(rbind,x[i:i+1])
>
> + list(aa[i])
>
> + }}
>
>> bb<-f(mylist)
>
> Mensajes de aviso perdidos
>
> 1: In aa[i] <- do.call(rbind, x[i:i + 1]) :
>
> número de items para para sustituir no es un múltiplo de la longitud del
> reemplazo
>
> 2: In aa[i] <- do.call(rbind, x[i:i + 1]) :
>
> número de items para para sustituir no es un múltiplo de la longitud del
> reemplazo
>
> 3: In aa[i] <- do.call(rbind, x[i:i + 1]) :
>
> número de items para para sustituir no es un múltiplo de la longitud del
> reemplazo
>
> 4: In aa[i] <- do.call(rbind, x[i:i + 1]) :
>
> número de items para para sustituir no es un múltiplo de la longitud del
> reemplazo
>
> 5: In aa[i] <- do.call(rbind, x[i:i + 1]) :
>
> número de items para para sustituir no es un múltiplo de la longitud del
> reemplazo
>
> 6: In aa[i] <- do.call(rbind, x[i:i + 1]) :
>
> número de items para para sustituir no es un múltiplo de la longitud del
> reemplazo
>
>
>
>
>
> Thanks!
>
>
>
> Montserrat
>
>
>
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
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David Winsemius
Alameda, CA, USA
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and provide commented, minimal, self-contained, reproducible code.
