如何将 R 警告消息重定向到 STDOUT? [英] How can I redirect R warning messages to STDOUT?

问题描述

我正在使用网格引擎来运行 R 脚本.在此设置下，STDERR 受到重视，因此我希望保持干净，并且只将真实/严重/致命错误打印到 STDERR.

I'm using a grid engine to run R scripts. The STDERR is taken seriously under this setup, so I would like to keep it clean and have only real/serious/fatal errors printed to STDERR.

问题是我的 R 脚本生成了各种 STDERR 消息，这些消息并不是真正严重的警告……例如，scan 似乎向 STDERR 打印了它读取的项目数.

The problem is my R script generate various STDERR messages which are not really serious warnings... for example, scan seems to print to STDERR the number of items it read.

我可以(从 R 中)将 STDERR 重定向到 STDOUT 吗?

Can I redirect (from within R) STDERR to STDOUT?

推荐答案

查看sink()的帮助页面:

‘sink’将 R 输出转移到一个连接.如果 ‘file’ 是一个字符字符串，将建立具有该名称的文件连接转移的持续时间.

‘sink’ diverts R output to a connection. If ‘file’ is a character string, a file connection with that name will be established for the duration of the diversion.

正常的 R 输出(到连接‘stdout’)被转移到默认类型=输出"".只有提示和(大多数)消息继续出现在控制台上.发送到‘stderr()’的消息(包括来自消息"、警告"和停止"的那些)可以是被‘sink(type = "message")’转移(见下文).

Normal R output (to connection ‘stdout’) is diverted by the default ‘type = "output"’. Only prompts and (most) messages continue to appear on the console. Messages sent to ‘stderr()’ (including those from ‘message’, ‘warning’ and ‘stop’) can be diverted by ‘sink(type = "message")’ (see below).

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