Dear all,
I am beginning a project that will compare some block group level data from
the 2000 and 2010 Censuses in the U.S.
Before I begin I wanted to survey the list and see if anyone had any
experience with two of the stumbling blocks I foresee.

1)Is there some good R code for accessing and parsing 2000 and 2010
detailed data from the ftp site? I know there is a USCensus2000 package
that includes all the data, but what I would really like are some pointers
to scripts that will get just the data I need straight from the Census and
read it in so I can use it. I am interested in both the SF3 variables and
the Tiger/Line files.

2)Has anyone worked with aligning census geographies at a fine scale (e.g.
matching 2000 Census blocks to 2010 block groups). Obviously there is a lot
of change at a fine scale and I was wondering if anyone had worked with the
Census Crosswalks to try and bash out a workable set of spatial units for
cross census comparison?

These are both big jobs and will likely be the focus of my work for some
time, but if anyone has some pointers at the outset, I would love to not
reinvent the wheel.

Feel free to respond off-list and I can aggregate and re-post.

Cheers,

Chris

-- 
Christopher S. Fowler PhD.
206.920.1686
http://csfowler.com

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