makeUS_coordinates: make Coordinate of US State centers
In floswald/EconData: Economics Datasets for R

Description Usage Arguments References See Also Examples

optionally one can supply a list that groups states together. like census divisions. the relevant location is then just the average of the coordinates of the constituting states

1	makeUS_coordinates(agg = NULL)

agg

list of character vectors of state abbreviations that should be aggregated into one location

http://staff.washington.edu/glynn/dist_matrix.pdf

Other makers: makeAbbreviations, makeAllData, makeCPIUS, makeFHFA, makeLincolnHomeValues, makeMORTGAGE30US, makeMedianIncome, makeUS_distance

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all <- makeUS_coordinates()
aggregated <- makeUS_coordinates(agg=list(c("ME","VT"),c("ND","SD","WY")))
Divisions <- makeUS_coordinates(agg=list(c("ME","VT"),c("ND","SD","WY")))