I am attempting to use ggmap to look at education scores by school. I created a coordinate list of all the schools and the individual student scores like so: score lat lon 3205 45 28.04096 -82.5...

I need to plot spatial data in a non-square map. I have been using ggmap, and supposedly you can get non squared maps giving low-west-corner and upper-right-corner coordinates. However, actually ...

I am trying to make a choropleth of very simple data, and it's kind of a pain in the neck. I have the following zip codes in the Eastern USA. This is made up data but you get the idea. Zip Freq 11...

I got a raw Longitude/Latitude data whose format cannot be processed by R map. So I wonder if there are some R functions or algorithms to help me to convert those raw data into a readable for...

I am generating maps with world-scale data, and then zooming in to certain regions. On the zoomed-in view, I would like to show that there are other data points outside the bounding box, by putting...

I'm working with the ggmap package in R and I am relatively new to geospatial data visualizations. I have a data frame of eleven latitude and longitude pairs that I would like to plot on a map, eac...

I am having clipping problems when I try to combine ggmap with shape files. The example in Kahle and Wickham (2013: 158) works fine because the raster image from ggmap covers the entire shape file....

I'm trying to plot a US map where each state is shaded by the count that it has. I've gotten the shading to work just fine. The problem I'm running into, however, is that the polygons look very jag...

I am new to r and have been trying for hours to plot points of a family of butterflies on a map of arizona. I could be doing totally wrong or have something missing im not sure and any help would b...

I'm using ggmap library in R. I'm trying to download a rectangular map with it, but I know it'll give me a square. I only need the bounding box of the returned square. library(ggmap) map <- get...

I have a data like this: YEAR-STORM-DATETIME-NORTH-WEST-PRESSURE-WIND-SPEED-TRACKDATE 2011-arlene-6/28/2011 6:00-19.9-92.8-1007-30-NA-6/28/2011 2011-arlene-6/28/2011 12:00-20.3-93.1-1006-35-4-6/28...

Edit 7 : After quite a bit of help, I've been able to get a map that is getting close to the results I need. But I still need to have the state boundaries come through on the map, but I can't fig...

I'm plotting a route and points on ggmap and I need to add a legend to list the names that the points represent i.e. 1 Bill Harris, 2 Anne Jones etc.. I've prepared sample data. structure(lis...

I want to plot a heatmap on a ggmap. library(ggmap) turku<-get_map('turku', zoom=13) turkumap<-ggmap(turku, extent="device", legend="topleft") turkumap turkumap+geom_density2d(mapping=a...

The goal is to build something like http://rentheatmap.com/sanfrancisco.html I got map with ggmap and able to plot points on top of it. library('ggmap') map <- get_map(location=c(lon=20.4666...

I would really appreciate some help / ideas about a problem I am having with ggmap and stamen watercolor. I keep getting the same error message every time I try to create a stamen watercolor map:...

v <- 2^(7:17) min_lon <- 6.164780 max_lon <- 15.744857 min_lat <- 47.228296 max_lat <- 54.426407 center_lon <- (min_lon + max_lon)/2 center_lat <- (min_lat + max_lat)/2 df &lt...

I'm new to R and I'm following this article to learn ggmap. qmap("Forbidden city",zoom=15) qmap("Forbidden city",zoom=15, source="osm") While the first command above works perfectly, the s...

I've got a shapefile (SpatialLinesDataFrame) containing all streets in cologne, which can be downloaded from here. I merged this @data with data from an external source. How can i plot these street...

I am trying to place some plots on a map but nothing appears on the map. Here is a reproducible example. The first plot shows how each subplot should look. The second excludes the map but the subpl...

I am trying to create a simple ggmap with a number of schools. I can easily get to the point where the schools show up as points on the map (code below). But, I would like to bring in an image of a...

I have a SpatialPolygonsDataFrame with 11589 spatial objects of class "polygons". 10699 of those objects consists of exactly 1 polygon. However, the rest of those spatial objects consist of multipl...

I want to plot data points for various cities over a greyed-out map from google. As these cities are some distance from each other, I thought I would use a faceted plot. Creating the map is easy e...

I'm having trouble plotting a filled contour plot on top of a map with ggmap/ggplot2 in R. My data are regularly spaced lat/lon coordinates with a z value indicating rainfall > head( flood ) ...

In the following script, I read in a number of pairs of points and draw lines on a map. I am using ggmap to pull in a map from google to plot this lines over: source('./library/latlong2state.R') ...