fportfolio组约束不起作用

时间:2016-10-22 10:33:11

标签: r constraints

最近我在R:

中使用了fPortfolio
group.1 = c("minsumW[ sec1 ] = 0.215688 " ,  "maxsumW[ sec1 ] = 0.3126 " )
  groupConstraints = c(group.1)
  portfolioConstraints(ret, mv, groupConstraints)

如果我如上所述,它运作良好。

但是如果我从矩阵中设置约束数:

group.1 = c("minsumW[ sec1 ] = lobound[1]" ,  "maxsumW[ sec1 ] = 0.3126 " )
  groupConstraints = c(group.1)
  portfolioConstraints(ret, mv, groupConstraints)

它不起作用。

警告讯息:

  

强制引入的NAs

我该如何解决?

1 个答案:

答案 0 :(得分:1)

尝试

c(粘贴(“minsumW [sec1] =”,lobound [1],sep =“”),“maxsumW [sec1] = 0.3126”)