在R中运行异步功能 [英] Run asynchronous function in R

问题描述

我有以下代码:

myfun <- function() {
  fun2()

  return(1+1)
}

我希望fun2()被调用，然后移到下一行而不等待结果. fun2函数不返回任何内容，我也不在乎它何时完成，我只需要启动它即可.最好的方法是什么?并行进程，多线程，异步调用?任何代码示例，不胜感激.

I want fun2() is invoked and then moved to the next lines without waiting for the result. Function fun2 does not return anything and I don't care when it finishes, I just need to launch it. What is the best way to achieve it? Parallel process, multithreading, async call? Any code samples are appreciated.

推荐答案

最终，我停止了以下解决方案:

Eventually I stopped on the following solution:

Rpath <- Find(file.exists, c(commandArgs()[[1]], file.path(R.home("bin"), commandArgs()[[1]]),
                             file.path(R.home("bin"), "R"), file.path(R.home("bin"), "Rscript.exe")))
out <- system('%s --no-save --slave -e \"Your R code here\" ', wait=FALSE)

第一行搜索R可执行文件的路径，第二行从命令行环境执行R代码，而不等待结果.

The first line searches for the path of R executable, and the second executes R code from the command-line environment not waiting for result.

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