调试小程序/脚本 [英] debugging littler/Rscripts
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问题描述
如何调试从命令行运行的 Rscripts
?
How do I debug Rscripts
that are run from the command line?
我目前正在使用 getopt
包传递命令行选项,当有bug时坚果,这很难对我来说:
I am currently using the getopt
package to pass command line options, nut when there's a bug, it is hard for me to:
- 看看究竟出了什么问题;
- 在
R
中进行交互式调试(由于脚本需要命令行选项。)
- see what exactly went wrong;
- debug interactively in
R
(since the script expects command line options.)
有没有人有示例代码并愿意分享?
Does anyone have example code and willing to share?
推荐答案
您可以将命令行参数传递到带有--args的交互式shell中,然后将脚本('')。
You could pass your command line arguments into an interactive shell with --args and then source('') the script.
$ R --args -v
R version 2.8.1 (2008-12-22)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.
R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.
Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.
> require(getopt)
Loading required package: getopt
> opt = getopt(c(
+ 'verbose', 'v', 2, "integer"
+ ));
> opt
$verbose
[1] 1
> source('my_script.R')
您现在可以使用旧的browser()函数进行调试。
You could now use the old browser() function to debug.
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