我开始使用PerformanceAnalytics包学习R中的投资组合分析,我想知道是否有人在下载它时遇到了问题。我最终得到了以下错误:
require("PerformanceAnalytics")
Loading required package: PerformanceAnalytics
Error: package or namespace load failed for ‘PerformanceAnalytics’ in
loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]):
there is no package called ‘quadprog’
Warning message:
package ‘PerformanceAnalytics’ was built under R version 3.4.3
我试着下载了quadprog,但似乎什么也没做。任何帮助都将不胜感激!
发布于 2019-06-03 00:18:59
执行.libPaths()
并删除PerformanceAnalytics
和quadprog
packages.
那么有两个选择。
分步
install.packages("PerformanceAnalytics, dependencies = TRUE)
PerformanceAnalytics
,再安装quadprog
https://stackoverflow.com/questions/56416663
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