Fp days
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This document discusses errors that commonly occur in Excel spreadsheets. It notes that over 1% of formula cells contain errors, 88% of Excel spreadsheets contain errors, and large spreadsheets have more than 12 errors on average. Even renowned economists have made mistakes by incorrectly selecting columns in Excel that had substantial effects. Functional programming is presented as an alternative that offers benefits like type safety, testability and auditability to reduce errors.
Fp days
- 1. Excel errors and how to stop them Social @tsunamiide tsunami.io Earthquake Enterprises
- 3. FPDAYS 2012 Creator of Tsunami (F# IDE) Big Data / Machine Learning Applied Researcher Business Intelligence Process Engineering Social @tsunamiide tsunami.io Earthquake Enterprises
- 4. Skype moloneymb Email moloneymb@gmail.com Twitter @moloneymb Website http://tsunami.io Social @tsunamiide tsunami.io Earthquake Enterprises
- 5. FP Users? Excel Users? Customers with Excel? Windows Users? Academics? Social @tsunamiide tsunami.io Earthquake Enterprises
- 6. Managers / Customers like Excel Functional Programmers like Functional Programming Social @tsunamiide tsunami.io Earthquake Enterprises
- 8. Visit to Silicon Valley Social @tsunamiide tsunami.io Earthquake Enterprises
- 13. > 1% of formulae cells contain errors 88% of Excel spreadsheets contain errors Large spreadsheets have > 12 errors Social @tsunamiide tsunami.io Earthquake Enterprises
- 15. Risk Management was modelled in Excel Run manually through copy / paste One of the errors Sum instead of Average -> halved reported risk Social @tsunamiide tsunami.io Earthquake Enterprises
- 16. Just because were stupid doesnt mean everybody else was. Jamie Diamond Social @tsunamiide tsunami.io Earthquake Enterprises
- 17. Even renowned Harvard Economist make mistakes Growth in a Time of Debt Reinhart and Rogoff Failed to manually select the correct columns Substantial effect on the outcome of the study Incorrect advice given to government policy makers Social @tsunamiide tsunami.io Earthquake Enterprises
- 21. EXCEL FP 400 Million entrenched users Substantial Existing Investment Social @tsunamiide tsunami.io Productivity Type Safety Testability Auditability Performance Earthquake Enterprises