[R] How to debug R program?

[Feng Qiu]

> Hi everyone:
>       I wrote a R program which has loops. When I run the program, it 
> crashed. I would like to identify in which loop the pragram crashed, how 
> can I debug ?  I'm new to R, could somebody please give me a general idea 
> about debugging in R.(I'm a C/C++ programmer and have general knowledge 
> about program debugging.)
>      Thank you!
>
> Best,
>
> Feng
>