连接 R 和 Julia? [英] Linking R and Julia?

问题描述

Julia 在快速和语法健全的计算方面看起来非常有前途(例如 这里)，但我怀疑在一段时间内就整体统计工作流程而言，它不会接近 R.所以我想在 C++ 主要用于 R 程序的地方使用它:优化代码的慢部分.不过，在我花时间学习 Julia 之前，我很好奇有哪些工具可以将 Julia 片段嵌入到 R 代码中.

Julia looks very promising for fast and syntax-sane computation (e.g. here), but I suspect it will not be anywhere near R in terms of overall statistics workflow for some time yet. So I'd like to use it where C++ is mainly used in R programs: to optimize slow portions of code. Before I invest the time in learning Julia, though, I am curious what facilities there are for embedding Julia snippets in R code.

所以:

• 有哪些工具可以连接 R 和 Julia?
• 在从零到 Rcpp 的范围内，它们的稳健性和深思熟虑程度如何?

我想从 R 中调用 Julia，就像 Rcpp 现在允许从 R 中调用 C++一样.我不想给 Julia 打电话.(所以 RCall.jl 不起作用)

I want to call Julia from R, just as Rcpp allows calling C++ from within R right now. I do not want to call R from Julia. (So RCall.jl would not work)

推荐答案

RJulia R 包看起来不错现在从 R 开始好.R CMD check 运行时没有警告或错误(如果正确安装了 julia).

The RJulia R package looks quite good now from R. R CMD check runs without warnings or errors (if julia is properly installed).

在我看来，最大的 TODO 是让 Julia 返回命名列表，这些列表构成了 R 中真正基本的灵活通用数据结构.

Biggest TODO in my view is to get Julia to return named lists which constitute the really basic flexible general data structure in R.

请注意，Doug Bates 提醒我有关 RCall 是从 Julia 到 R 的双向接口(即，除了 R 到 Julia 的另一个方向).此外，Doug 建议针对 julia 0.4.0 而不是当前的稳定版 julia.

Note that Doug Bates alerted me about RCall a bi-directional interface from Julia to R (i.e., the other direction than R to Julia). Also, Doug recommended to target julia 0.4.0 rather than the current stable versions of julia.

自上述编写以来，又出现了几个接口:现在(2021-04)，我们有 R 包

Several more interfaces have appeared since the above was written: Now (2021-04), we've got R packages

• JuliaCall (~2017) 将 Julia 嵌入到 R 中，并且得到积极维护可从 CRAN 获得.
• JuliaConnectoR (~2019)，也可从CRAN 目标更高，例如，直接将 julia 对象导入 R

• JuliaCall (~2017) which embeds Julia in R, and is actively maintained available from CRAN.
• JuliaConnectoR (~2019), also available from CRAN which aims even higher, e.g., directly importing julia objects into R

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