Here's a piece of code used to plot some locations on a map.
from rpy2.robjects import r,RDataFrame,globalEnv
r.library('maps')
self.store_info = r['read.delim']('file.dlm', sep='|', header=True)
r.png(file='locations.png', width=1500, height=840, bg='transparent')
r.map('state')
r.points(r['$'](self.store_info,'LONGITUDE'),
r['$'](self.store_info,'LATITUDE'), pch=19, col='blue', cex=0.8)
r['dev.off']()
Input file:
LOC_ID|LATITUDE|LONGITUDE|ACCURACY
123|44.7294508|-93.2176135|8
456|45.4878370|-122.7877570|8
I would also like to show us capitals on this map.
map.cities(us.cities, capital=2)
How do I specify that?
Thanks.
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