ggmap

问题 I'm trying to plot a static base map underneath my sf object (for print). When using ggmap I first get a lot of errors, then I can't seem to figure out how to chain the base map to my ggplot2 object with a geom_sf . library(sf) # devtools::install_github("tidyverse/ggplot2") library(ggplot2) library(ggmap) nc <- st_read(system.file("shape/nc.shp", package="sf")) nc_map <- get_map(location = "North Carolina, NC", zoom = 7) ggmap(nc_map) nc_centers <- st_centroid(nc) nc_centers %>% ggplot() +

问题 I am trying to draw some specific countries map such as, Bangladesh, Bhutan etc. with its district/cities in R. As an example, I can draw US map using the following lines of codes. Is there any such library/package that can give me any countries map with its cities/district/province? Any clue is appreciated. library(maps) states <- map_data("state") 回答1: You can download shapefile of any country from the following website https://www.diva-gis.org/gdata Then read and plot them in R using

问题 I'm trying to plot points from a csv using ggmap. The input csv has latitude, longitude, and hex color value (as well as a seed used to create the color value). However, the hex for the point and the actual color of the point don't match. Why is that? The current output My code: library(ggmap) stores <- data.frame((read.csv(file="./mapData") # Fetch the map madison = get_map(location = location, source = "osm") # Draw the map madisonMap = ggmap(madison) # Add the points layer madisonMap =

问题 I'm trying to produce a choropleth map of county level data on COVID-19 infections using R. I'm a relative newbie to R so.... I've done some fairly basic stuff with ggmap to plot spatial data, but never anything quite like this. Typically I just have points of interest that I need to overlay on a map, so I can use geom_point and their lat/lon. In this case I need to construct the underlying map and then fill regions and I'm struggling with doing that in the ggplot world. I've followed some

问题 the question/problem is very similar to the original question: change the decimal degrees to degrees minutes seconds in the ggplot axis labels. I'm following these steps: library(ggplot2) library(ggmap) #get my map city<- get_map(location = c(lon= -54.847, lat= -22.25), maptype = "satellite",zoom = 11,color="bw") map<-ggmap(city,extent="normal")+ xlab("Longitude")+ ylab("Latitude") map In addition, I'm trying what @Jaap wrote: scale_x_longitude <- function(xmin=-180, xmax=180, step=1, ...) {

来源： https://stackoverflow.com/questions/62091163/mapping-using-ggmap-stamen-maps-in-r-labelling-points-and-scale

问题 I have a data set that contained lat/long information for different point locations, and I would like to know which city and state are associated with each point. Following this example I used the revgeocode function from ggmap to obtain a street address for each location, producing the data frame below: df <- structure(list(PointID = c(1787L, 2805L, 3025L, 3027L, 3028L, 3029L, 3030L, 3031L, 3033L), Latitude = c(38.36648102, 36.19548585, 43.419774, 43.437222, 43.454722, 43.452643, 43.411949,

问题 I have a data set that contained lat/long information for different point locations, and I would like to know which city and state are associated with each point. Following this example I used the revgeocode function from ggmap to obtain a street address for each location, producing the data frame below: df <- structure(list(PointID = c(1787L, 2805L, 3025L, 3027L, 3028L, 3029L, 3030L, 3031L, 3033L), Latitude = c(38.36648102, 36.19548585, 43.419774, 43.437222, 43.454722, 43.452643, 43.411949,

问题 I'm attempting to plot multiple barplots on a map and am just looking for a place to start. I've looked at a few questions already (shown below).. Barplots on a Map Plotting bar charts on map using ggplot2? How to plot barchart onto ggplot2 map However, all of these seem out of date. Below is the data I am trying to plot. I'm looking to make 4 plots on one map with one in each geolocation. I want each plot to be a barpot of counts for each purpose at each respective location. geoloc purpose

问题 This question already has an answer here : How should I deal with “'someFunction' is not an exported object from 'namespace:somePackage'” error? [closed] (1 answer) Closed 23 days ago . I'm trying to create a map of board members for my nonprofit using ggmap . I'm located in San Diego so my code is as follows: mapPoints <- qmap('San Diego, CA', zoom = 10) + geom_point(data = membershipClean, aes(x = lon, y = lat, stat = "identity", size = Dues.Amount), alpha = .5) Where lat and lon are the