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我加载 fPortfolio 并附带一个预安装的数据框:

library(fPortfolio)
library(PerformanceAnalytics)

data("edhec")

rets <- edhec

# compute the tangency portfolio
tp <- tangencyPortfolio(as.timeSeries(edhec))

frontier <- portfolioFrontier(as.timeSeries(edhec))
#plot(frontier) # Plots frontier, don't need this

# The problem is when I run this code:
weightsSlider(object = frontier, control = list())

当我运行最后一行时,weightsSlider我得到一个错误:

Error in tclVar(starts[i]) : could not find function "tclVar"

一个单独的窗口打开,上面写着“窗口滑块”。

如果我运行:

capabilities()["tclVar"]

我得到错误:

<NA> 
 NA

当我运行时:

tcltk::tclVar

我得到错误:

function (init = "") 
{
    n <- .TkRoot$env$TclVarCount <- .TkRoot$env$TclVarCount + 
        1L
    name <- paste0("::RTcl", n)
    l <- list(env = new.env())
    assign(name, NULL, envir = l$env)
    reg.finalizer(l$env, function(env) tcl("unset", names(env)))
    class(l) <- "tclVar"
    tclvalue(l) <- init
    l
}
<bytecode: 0x000001b271b9ddd0>
<environment: namespace:tcltk>

我安装了 thetcltcltk2软件包。


f 投资组合文件

fPortfolio github

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