
Henrique,
  The last message gave me exactly what i needed.  Im still not sure whats going on, i will need to reference the do.call function some more.  Thanks for your help.


Josh Roll
Lane Council of Governments
Transportation Planner
Office: 541-682-2454
Cell: 406-671-5069
jroll@lcog.org
www.lcog.org

________________________________
From: Henrique Dallazuanna [via R] [mailto:ml-node+2246612-389423334-103725@n4.nabble.com]
Sent: Monday, June 07, 2010 2:31 PM
To: ROLL Josh F
Subject: Re: Transforming list to data frame with corresponding columns

Try this:

`colnames<-`(do.call(rbind, lapply(all2, '[', nm <-
unique(unlist(sapply(all2, names))))), nm)

On Mon, Jun 7, 2010 at 4:20 PM, LCOG1 <[hidden email]</user/SendEmail.jtp?type=node&node=2246612&i=0>> wrote:

>
> Hi all,
>   Consider the following.
>
>
> a<-list(c("MHsub","MHsub","SFD","Duplex"))
> b<-list(c("MHsub","MHsub","SFD"))
> c<-list(c("MHpark","SFD","SFD"))
> d<-list(c("MultiFam","MultiFam","MultiFam","Duplex"))
>
> all<-list(a,b,c,d)
> names(all)<-c("5","6","7","8")
> all2<-list()
> for(i in 1:length(all)){
> all2[[i]]<-table(unlist(all[i]))
> }
> names(all2)<-names(all)
>
> What i want to do is to put each of the elements of the list into a data
> frame where the element represents a row and each vector is accounted for,
> for all types within the entire list.  So where there isnt a particular
> vector a 0 is noted so that the final product looks like this:
>
>
>        SFD     Mhsub   Duplex  MultiFam
> 5       1          1                1               0
> 6       1          1                0               0
> 7       1          1                0               0
> 8       0          0                1               1
>
> Thanks for the insights.
>
> --
> View this message in context:
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> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> [hidden email]</user/SendEmail.jtp?type=node&node=2246612&i=1> mailing list
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> PLEASE do read the posting guide
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> and provide commented, minimal, self-contained, reproducible code.
>


--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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