Assocation rules are a concept in which relationships between different elements of a common set can be established. For example, a study may be undertaken to determine the impact of one externally employed parent on childrens GPA in a household,…
Month: May 2014
Python implementation of luhn algorithm
The luhn algorithm, or mod 10, was developed by an IBM scientist in the 1950’s. To a large extent it is still used today to validate credit card numbers in front end applications. If you think back to your high…
Cost of Good Sold (COGS) and margins
This number represents what was spent in the direct production of goods for sale. For example, material used to produce clothing in a retail organization would fall in this category. Salaries for home office employees would not. If this number…