The first problem that comes up is that some of the software doesn’t work. That can happen for a number of reasons. The most common ones are that the code hasn’t been written yet, or that the code was written in a different language, or that the code was written in a dialect that was incompatible with the desired target language.
When you’re working with a larger project with more complex components that are based on a language that’s not an R, it may be helpful to think about learning an alternative, such as Java, C++, Perl, or Python. That way, when you do receive your completed work, it will likely be compatible with your choice of target language.
If you feel like the code was written by someone who’s experienced in R, but is unfamiliar with the language, don’t just discard the code. Rather, go ahead and re-write it, but first give it a little bit of a test run.
For example, have the package named by the person, and try it out. Try to read the documentation that came with the package, as well as online at their website. See if the code has errors that are easy to find.
If there are no error messages after that, it may be time to re-write the code, and make sure it has the results you wanted beforehand. You may even be able to catch a simple bug that only the tiniest portion of the code is working correctly.
If that doesn’t work, then consider hiring a programmer to fix the code that you have. However, if the coding has been done yourself and it’s not working, you’ll need to know what’s wrong. It could be a poorly written function or you may just be missing something that is required.
These things can be easily found by checking the source, which should tell you what the code is doing wrong, and what you need to change. If that doesn’t help, then take a look at the output, or the output after fixing the code. Have a quick look at what it says and if the errors are minor, ask the programmer to duplicate the same thing, but using different variables and functions.
If that doesn’t help, or you see something that seems like a simple programming error, but turns out to be from a more complicated situation, consider taking it up with the company that created the code, or at least the company that has given the software away, or is in charge of maintaining it. It may be time to contact an IT professional to help, or you may need to hire someone to handle the problem.
If it’s an unmanaged problem, or you feel that a private contractor will cost you a lot more than it’s worth, or if you have too many people on your list to put together a simple project, then don’t hire one. It’s best to limit it to only a few people, or if you have someone already, contact them to let them know that you need the help and maybe ask them to fill in.
If you need help, don’t be afraid to ask. That means if you feel like the code isn’t going to work, or that you need to tweak it or adjust it, or that you need to write it in a completely different language, or that you want to change it because it needs to be documented or tested differently. If you have the support of someone who knows how to use it and understands it well, then that’s all you need.
If you need programming assignment help, find the help you need in a forum where other people are looking for it. Don’t be afraid to ask for help and ask someone else for help if you get to the point where you can’t do it on your own.