[R] map at fips level using multiple variables
dwinsemius at comcast.net
Thu Dec 8 01:50:11 CET 2011
On Dec 7, 2011, at 6:12 PM, bby2103 at columbia.edu wrote:
> Hi, I just started playing with county FIPS feature in maps package
> which allows geospatial visualization of variables on US county
> level. Pretty cool.
> I did some search but couldn't find answer to this question--how can
> I map more than 2 variables on US map?
"2 variables" is a bit on the vague side for programming purposes.
> For example, you can map by the breakdown of income or family size.
> How do you further breakdown based on the values of both variables
> and show them on the county FIPS level?
"breakdown" suggests a factor construct. If so, then :
But the "show" part of the question remains very vague.
Can't you be a bit more specific? What DO you want?
David Winsemius, MD
West Hartford, CT
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