ggplot 不绘制 ggmap 对象
ggplot not plotting ggmap object
当我 运行 来自已接受答案 (Plot coordinates on map) 的代码时,我在安装 ggmap 后的第一个 运行 收到以下错误消息:
# loading the required packages
library(ggplot2)
library(ggmap)
# creating a sample data.frame with your lat/lon points
lon <- c(-38.31,-35.5)
lat <- c(40.96, 37.5)
df <- as.data.frame(cbind(lon,lat))
# getting the map
mapgilbert <- get_map(location = c(lon = mean(df$lon), lat = mean(df$lat)), zoom = 4,
maptype = "satellite", scale = 2)
# plotting the map with some points on it
ggmap(mapgilbert) +
geom_point(data = df, aes(x = lon, y = lat, fill = "red", alpha = 0.8), size = 5, shape = 21) +
guides(fill=FALSE, alpha=FALSE, size=FALSE)
给出错误:
Error: GeomRasterAnn was built with an incompatible version of ggproto. Please reinstall the package that provides this extension.
我尝试安装 ggproto,但错误是:
> Warning in install.packages :
package ‘ggproto’ is not available (for R version 3.3.2)
在随后的尝试中,错误是:
Error: ggplot2 doesn't know how to deal with data of class ggmap/raster
我可以使用以下方法绘制图像:
plot(mapgilbert)
我试过:
map2 <- get_map("Rotorua", zoom = 16)
ggmap(data = map2)
返回了以下错误消息:
Error: ggplot2 doesn't know how to deal with data of class ggmap/raster
我只是不太了解 R,不知道下一步该去哪里寻找解决方案——已确保所有软件包都已更新。
这可能是版本错误,因为您的代码在我的机器 (R 3.3.2) 上运行完美。
devtools::install_github("dkahle/ggmap")
devtools::install_github("hadley/ggplot2")
您可以下载软件包 "devtools" 并再次从 github 安装 ggmap 和 ggplot2。
当我 运行 来自已接受答案 (Plot coordinates on map) 的代码时,我在安装 ggmap 后的第一个 运行 收到以下错误消息:
# loading the required packages
library(ggplot2)
library(ggmap)
# creating a sample data.frame with your lat/lon points
lon <- c(-38.31,-35.5)
lat <- c(40.96, 37.5)
df <- as.data.frame(cbind(lon,lat))
# getting the map
mapgilbert <- get_map(location = c(lon = mean(df$lon), lat = mean(df$lat)), zoom = 4,
maptype = "satellite", scale = 2)
# plotting the map with some points on it
ggmap(mapgilbert) +
geom_point(data = df, aes(x = lon, y = lat, fill = "red", alpha = 0.8), size = 5, shape = 21) +
guides(fill=FALSE, alpha=FALSE, size=FALSE)
给出错误:
Error: GeomRasterAnn was built with an incompatible version of ggproto. Please reinstall the package that provides this extension.
我尝试安装 ggproto,但错误是:
> Warning in install.packages :
package ‘ggproto’ is not available (for R version 3.3.2)
在随后的尝试中,错误是:
Error: ggplot2 doesn't know how to deal with data of class ggmap/raster
我可以使用以下方法绘制图像:
plot(mapgilbert)
我试过:
map2 <- get_map("Rotorua", zoom = 16)
ggmap(data = map2)
返回了以下错误消息:
Error: ggplot2 doesn't know how to deal with data of class ggmap/raster
我只是不太了解 R,不知道下一步该去哪里寻找解决方案——已确保所有软件包都已更新。
这可能是版本错误,因为您的代码在我的机器 (R 3.3.2) 上运行完美。
devtools::install_github("dkahle/ggmap")
devtools::install_github("hadley/ggplot2")
您可以下载软件包 "devtools" 并再次从 github 安装 ggmap 和 ggplot2。