我花了几个小时试图了解成功利用PortfolioAnalytics包中的 optimize.portfolio()功能所需的内容,但我收到了多个错误,尽管尝试了各种optimize_methods(例如& #34; DEoptim"" ROI&#34)
。安装PortfolioAnalytics后,我在指定组合约束后尝试运行optimize.portfolio(),但收到以下错误:
错误:%search()||中的paste0("包:",插件)% requireNamespace(插件,....不是TRUE
尝试下载"插件",但我收到:
Warning in install.packages : package ‘plugin’ is not available (for R version 3.3.1)
我首选的optimize_method是" ROI,"我已经安装了" ROI"包但我仍然收到错误要求"插件。"
我尝试通过手动安装" DEoptim,"来解决这个问题。但我仍然无法成功运行optimize.portfolio():
pspec <- portfolio.spec(assets=names(fxreturns))
pspec <- add.constraint(pspec,type = "diversification", div_target = 0.5)
pspec <- add.constraint(pspec,type = "return",return_target=0.05)
pspec <- add.constraint(pspec,type = "leverage")
optimize.portfolio(fxreturns,portfolio = pspec,optimize_method = "DEoptim")
尽管下载了多个软件包(为什么我在第一次安装&#34; PortfolioAnalytics&#34;?时不会自动安装所需的软件包),但是当我运行&#34; DEOPtim&#34时,我收到以下错误;:
seq.default中的错误(from = round(min,rounding),to = round(max,rounding),:&#39; from&#39;不能是NA,NaN或无限
供参考,以下是我加载的所有软件包:
library(quantmod)
library(tseries)
library(PerformanceAnalytics)
library(PortfolioAnalytics)
library(xts)
library(timeSeries)
library(TTR)
require(Rblpapi)
require(reshape2)
require(xlsx)
require(Hmisc)
require(ROI)
require(data.table)
require(DEoptim)
答案 0 :(得分:6)
我遇到了同样的问题,转到PortfolioAnalytics cran页面并安装了所有内容:
library(foreach)
library(DEoptim)
library(iterators)
library(fGarch)
library(Rglpk)
library(quadprog)
library(ROI)
library(ROI.plugin.glpk)
library(ROI.plugin.quadprog)
library(ROI.plugin.symphony)
library(pso)
library(GenSA)
library(corpcor)
library(testthat)
library(nloptr)
library(MASS)
library(robustbase)
不确定哪一个做了这个技巧,但我怀疑它是ROI插件包。
答案 1 :(得分:0)
对我来说有帮助的包裹:
library(ROI.plugin.quadprog)