如何将所有控制台输出保存到R中的文件？ [英] How to save all console output to file in R?

问题描述

我想将所有控制台文字重新导向至档案。这里是我尝试：

I want to redirect all console text to a file. Here is what I tried:

> sink("test.log", type=c("output", "message"))
> a <- "a"
> a
> How come I do not see this in log
Error: unexpected symbol in "How come"

这是我在test.log中得到的：

Here is what I got in test.log:

[1] "a"

这里是我想要的test.log：

Here is what I want in test.log:

> a <- "a"
> a
[1] "a"
> How come I do not see this in log
Error: unexpected symbol in "How come"

我做错了什么？谢谢！

推荐答案

你必须分别接收输出和消息（ code>函数只查看类型的第一元素

You have to sink "output" and "message" separately (the sink function only looks at the first element of type)

现在，如果您还希望将输入也记录在脚本中：

Now if you want the input to be logged too, then put it in a script:

script.R

1:5 + 1:3   # prints and gives a warning
stop("foo") # an error

并根据提示：

con <- file("test.log")
sink(con, append=TRUE)
sink(con, append=TRUE, type="message")

# This will echo all input and not truncate 150+ character lines...
source("script.R", echo=TRUE, max.deparse.length=10000)

# Restore output to console
sink() 
sink(type="message")

# And look at the log...
cat(readLines("test.log"), sep="\n")

这篇关于如何将所有控制台输出保存到R中的文件？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！