tryCatch is one of the functions that allows the users to handle errors in a simple way. With it, you can do things like: if(error), then(do this). Take the following example: sqrt("a") Error in sqrt("a") : non-numeric argument to mathematical function Now maybe you’d want something to happen when such an error happens. You can achieve that with tryCatch: tryCatch(sqrt("a"), error=function(e) print("You can't take...