使用非零状态码使R退出 [英] Make R exit with non-zero status code

问题描述

我正在寻找linux/POSIX exit(n)的R等效项，它将以退出代码n停止进程，并向父进程发出已发生错误的信号. R有这样的便利吗?

I am looking for the R equivalent of linux/POSIX exit(n) which will halt the process with exit code n, signaling to a parent process that an error had occurred. Does R have such a facility?

推荐答案

它是quit()的参数.参见?quit.

参数:

status: the (numerical) error status to be returned to the operating
        system, where relevant.  Conventionally ‘0’ indicates
        successful completion.

详细信息:

 Some error statuses are used by R itself.  The default error
 handler for non-interactive use effectively calls ‘q("no", 1,
 FALSE)’ and returns error code 1.  Error status 2 is used for R
 ‘suicide’, that is a catastrophic failure, and other small numbers
 are used by specific ports for initialization failures.  It is
 recommended that users choose statuses of 10 or more.

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