[R] write a table to file with unequal length of lists

Zhu Wang zwang at scharp.org
Fri Sep 1 22:56:38 CEST 2006


Yes, the code does the job. Thanks, Zhu Wang

Rolf Turner wrote:
> What about
>
> 	> x <- 1:2
> 	> a <- list(c(4,5),c(8,9,10)) # Which is the way you *should*
>                                       # have constructed a!
> 	> ddd <- data.frame(x=x,a=I(unlist(lapply(a,paste,collapse=","))))
> 	> write.table(ddd,file="ddd.out",quote=FALSE,row.names=FALSE)
>
> 			cheers,
>
> 				Rolf Turner
> 				rolf at math.unb.ca
>
> Original message:
>
>   
>> Dear R helpers,
>>
>> To illustrate my problem, here is a simplified example. I want to write 
>> a table to a file similar to:
>> x                      a
>> 1                      4,5
>> 2                      8,9,10
>>
>> Note the length of elements of "a" is 2 and 3 respectively.  This can be 
>> created by, for example,
>> x <- c(1,2)
>> a <- NULL
>> a[1] <- list(c(4,5))
>> a[2] <- list(c(8,9,10)
>>
>> Any suggestions to write such a table to file would be appreciated.
>>
>> Thanks,
>>
>> Zhu Wang



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