【发布时间】:2019-10-18 09:03:09
【问题描述】:
我开始使用 PerformanceAnalytics 包在 R 中学习投资组合分析,我想知道是否有其他人在下载它时遇到了问题。我最终得到以下错误:
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
我尝试下载 quadprog,但似乎没有任何作用。任何帮助,将不胜感激!
【问题讨论】: