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empdata
2009 Aug 25
1
Help in plotting a legend
...full of these colors, but only show the max
and the min value on the left corner and the right corner respectively.
Here's a part of the code I am using:
#empdata has the employee data with the latitude and longitude for each
employee
library(PBSmapping)
addressEvents<-as.EventData(empdataRC,projection=NA)
#myShapeFile is a shape file of Ohio imported using importShapefile
addressPolys<-findPolys(addressEvents,myShapeFile)
myTrtFC<-
table(factor(addressPolys$PID,levels=levels(as.factor(myShapeFile$PID))))
log(myTrtFC)->lTrt
mapColors<-heat.colors(max(lTrt)+1,alpha...