Hi:
On Tue, Nov 2, 2010 at 8:06 AM, McCarthy, Ian <
ian.mccar...@fticonsulting.com> wrote:
> I'm trying to generate 50+ graphs using the UScensus2000tract data. I
> need to access the data for just about all of the states, so I was
> hoping to create a simple loop that will take the relevant state from my
> data and load the associated census data from the UScensus2000tract
> package. Below is a sample of what I'm trying to do. Any suggestions
> are much appreciated.
>
>
> stores=read.table(paste(path,"\\StoreList.txt",sep=""),header=TRUE,sep="\t")
> city=stores$City
> state=stores$State
> city.state=data.frame(city,state)
>
> Or more succinctly,
city.state <- stores[ , c('city', 'state')]
>
>
> state.temp=city.state$state[1]
> tract <- paste(state.temp,".tract",sep="")
>
I believe you need get() here, but I would think you'd need a path to the
state file you want to grab. See ?get
HTH,
Dennis
>
> data(tract)
>
> Warning message:
>
> In data(tract) : data set 'tract' not found
>
>
>
>
>
>
>
> Ian McCarthy, Ph.D.
>
> F T I
>
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>
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