Plotting google map with ggplot in R
I am trying to plot Google map that is queried using RgoogleMaps package and combine it with ggplot. Ultimately, I want to show total population using geom_point , somewhat similar to the picture below however I am trying to concentrate on Montgomery region because of over-plotting. I am frustrated because I cannot plot my queried map in R. I tried a couple of packages such as read.jpeg and png but it didn't quite work out. R codes: #query google map al1 <- GetMap(center=c(32.362563,-86.304474), zoom=11, destfile = "al2.jpeg", format="jpg",maptype="roadmap") #load only specific states alabama