无法在R软件中加载包(rworldmap)

Question

加载rworldmap包时，无法在R软件(版本: 3.0.3)中加载。

The rworldmap package has been installed.
Code: library(rworldmap)

Wrong information appeared on the window as follows:

" Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]) : 
  there is no package called ‘fields’
Error: package or namespace load failed for ‘rworldmap’ "

如何处理它？感谢您的关注。

Answer 1

尝尝这个

Install package map 
library("ggmap")
library(maptools)
library(maps)
map("world", fill=TRUE, col="white", bg="lightblue", ylim=c(-60, 90), mar=c(0,0,0,0))

Answer 2

在自动安装依赖包的R studio中尝试此操作。

在base R中，你想要这个包‘spam’成功解包并检查MD5 sums包‘field’成功解包并检查MD5和包‘rworldmap’成功解包并检查MD5 sums