Please I am trying to plot different zipcodes in R on the map for houston, TX .I already plotted the zipcodes which appear as colored circles on the map .How do I plot the actual zipcodes on the map so that when you hover the mouse on the map the zipcodes appear or displays.?
library(ggplot2)
library(maps)
library(ggmap)
x1 <- as.character(data$zips)
lonlat_sample <- sapply(x1 , function(x1){as.numeric(geocode(x1))})
lonlat1 <- t(lonlat_sample)
complete1 <- data.frame(data,lonlat1)
colnames(complete1) <- c("zips", "ER","long","lat")
map <- get_map(location = "harris county", zoom=9)
mapPoints <- ggmap(map, fullpage=TRUE) +
geom_point(aes(x = long, y = lat, size = ER, col="class"), data = complete1, alpha = .8)
mapPoints