MATLAB Data Analysis Code Review

I have a working MATLAB script that analyses a small dataset (fewer than 1,000 rows). While the results look correct, I’d like a fresh set of expert eyes on the code itself. Your task is to comb through the file, point out weak spots, and—where it helps—suggest or demonstrate clearer, faster, or more reliable alternatives.

Key areas for the review
• Code efficiency
• Accuracy of results
• Readability and documentation

What I will send you
– The current .m file(s) plus a sample of the dataset
– A short note explaining the intended workflow and expected outputs

What I expect back
– An annotated copy of the script (or a diff) with inline comments on every recommended change
– A concise summary explaining why each change improves one or more of the three focus areas
– Any optional refactored functions or helper scripts you feel add significant value

Everything should run in standard, up-to-date MATLAB without extra toolboxes beyond what the original code already uses. If something needs clarification, let me know early so we can keep iterations light and quick. Looking forward to sharpening this code together.