ggmap

问题 I have the following code to plot 2 points in ggmap library(ggmap) library(ggplot2) d <- data.frame(lat=c(12.97131,12.98692), lon=c(77.5121,77.68627)) Bangalore <- get_map("Bangalore,India", zoom=12) p <- ggmap(Bangalore) p + geom_point(data=d, aes(x=lon, y=lat),color="red",size=3) ggplot(p) These points are showing as red dots in the map. How can I connect these points? 回答1: No need for the final ggplot(p) (that's probably throwing an error on your end) and I'd use geom_path : p <- ggmap

问题 I'd like to generate a choropleth map using the following data points: Longitude Latitude Price Here is the dataset - https://www.dropbox.com/s/0s05cl34bko7ggm/sample_data.csv?dl=0. I would like the map to show the areas where the price is higher and the where price is lower. It should most probably look like this (sample image): Here is my code: library(ggmap) map <- get_map(location = "austin", zoom = 9) data <- read.csv(file.choose(), stringsAsFactors = FALSE) data$average_rate_per_night <

问题 I have a table containing all the latitudes and longitudes of some locations in a city called queryResult and I do the following: 1 - Get the Raster map of the city[Blackpool for instance] cityMapRaster = get_map(location = 'Blackpool', zoom = 12, source = 'google', maptype = 'roadmap') dataToShow <- ggmap(cityMapRaster) + geom_point(aes(x = Longitude, y = Latitude), data = queryResult, alpha = .5, color = "darkred", size = 1) print(dataToShow) and this will return the following points on the

问题 I would like to plot the heat of earthquake acceleration at Gilroy California. The following is my data; geocodes of each point is in decimal. lon lat Acc. -121.5897466 36.98443922 0.308722537 -121.5776472 36.98446622 0.343560598 -121.5657399 36.98449289 0.316238725 -121.5528172 36.98452208 0.289579654 -121.5397651 36.98455121 0.278277577 -121.6022388 36.9957913 0.321904187 -121.5897466 36.99578578 0.346187454 -121.57767 36.99578046 0.323865427 -121.5657514 36.99577518 0.296775313 -121

问题 I have recently encountered issues with the ggmap functions - had never had any. I have this data.frame: > head(df) longitude latitude freq 1 -118.7093 34.13446 2 2 -118.7092 34.13437 1 3 -118.6851 34.28574 5 4 -118.5986 34.26155 1 5 -118.5917 34.22762 6 6 -118.5914 34.37675 1 I used to be able to get a map using get_map then plot the plots the raster object using ggmap. I would then use + geom_point or whichever to plot my data, worked like a charm. map <- get_map(location=c(lon=-117.962813

问题 I have recently encountered issues with the ggmap functions - had never had any. I have this data.frame: > head(df) longitude latitude freq 1 -118.7093 34.13446 2 2 -118.7092 34.13437 1 3 -118.6851 34.28574 5 4 -118.5986 34.26155 1 5 -118.5917 34.22762 6 6 -118.5914 34.37675 1 I used to be able to get a map using get_map then plot the plots the raster object using ggmap. I would then use + geom_point or whichever to plot my data, worked like a charm. map <- get_map(location=c(lon=-117.962813

问题 I would like to create a map that is not perfectly square but rectangular and is the size I dictate. require(ggmap) tenmile <- get_map(location = c(lon = -122.486328, lat = 48.862813), color = "color", source = "google", maptype = "roadmap", zoom = 12) tenmile.map <- ggmap(tenmile, extent = "device", ylab = "Latitude", xlab = "Longitude")+ggtitle("GEOMean for Data from Oct 2013-Nov 2014") tenmile.map + geom_point(data=pp, aes(x=lon, y=lat, size=geomean), color="red", alpha=0.5) + geom_text

问题 Is there a way to implement gg_animate in R to produce a gif. I already have my ggmaps created and saved as PDFs. I would like to create an animation which scrolls through those maps maybe holding on each image for 1 or 2 seconds. Is there a way to do this in R or should I use some sort of gif creator - if so any suggestions? Thanks much 回答1: Update Jul2018 : gganimate() has undergone a rewrite and is now much improved. The previous API is only available through the archived version and

问题 Is there a way to implement gg_animate in R to produce a gif. I already have my ggmaps created and saved as PDFs. I would like to create an animation which scrolls through those maps maybe holding on each image for 1 or 2 seconds. Is there a way to do this in R or should I use some sort of gif creator - if so any suggestions? Thanks much 回答1: Update Jul2018 : gganimate() has undergone a rewrite and is now much improved. The previous API is only available through the archived version and

问题 Is there a way to implement gg_animate in R to produce a gif. I already have my ggmaps created and saved as PDFs. I would like to create an animation which scrolls through those maps maybe holding on each image for 1 or 2 seconds. Is there a way to do this in R or should I use some sort of gif creator - if so any suggestions? Thanks much 回答1: Update Jul2018 : gganimate() has undergone a rewrite and is now much improved. The previous API is only available through the archived version and