Getting a map with points, using ggmap and ggplot2 I want a map with points (and other geom_* layers) on it I get the map, but instead of the points all I get is a warning: Message d'avis : Removed 3 rows containing missing values (geom_point) H
Layering a ggplot2 map onto ggmap satellite with bathymetry data gg <- gg + coord_map() + theme_classic() However, I get the error: Error: ggplot2 doesn't know how to deal with data of class ggmapraster when I try and run the fortify code I have used this method before to add bathymetry polygons (see previous question) but they looked messy when I plotted datapoints onto the ocean so I am now trying this
r - World map with ggmap - Stack Overflow I am using ggmap and wish to have a map of the world centered on Australia to which I can easily plot geocoded points ggmap seems to be a lot easier to use compared to some of the other mapping pa
Pacific-centric Robinson projection with ggplot in R gg You can use gdalUtils for this as well, but it just calls the system binaries and you have to specify the clipping polygons with well known strings (so the system call is a few characters shorter for the line)
ggplot with 2 y axes on each side and different scales They are not invertible: given a point on the plot space, you can not uniquely map it back to a point in the data space They are relatively hard to read correctly compared to other options See A Study on Dual-Scale Data Charts by Petra Isenberg, Anastasia Bezerianos, Pierre Dragicevic, and Jean-Daniel Fekete for details
Add scalebar and north arrow in a ggmap without using ggsn CY_map <- get_stadiamap(cy, zoom = 10, maptype = "stamen_terrain") %>% ggmap() which creates a "gg" "ggplot" object called CY_map (note: I have used get_stadiamap instead of get_stamenmap since the latter is not supported now However, the important thing is that a gg object is present) Then, I combined the gg object with ggplot: