We played with the Dow Jones data that forms the basis of the next homework assignment. In class, we are demonstrating some basic techniques for solving problems that are similar (but not identical) to those that you will need to do for the homework.
By the end of the day on Friday, we had created the m-file dowjones.m.
On the following Wednesday, we created a script that showed an example of month-by-month or year-by-year analysis (moredow.m).
Please keep in mind that this code was created on-the-fly, so it is not necessarily a perfect model of good programming style.