Analysis of Data
Assuming you’ve got everything right so far …
- there are still lots of mistakes to make
Do Look at the Raw Data
- Summaries obscure important aspects of behaviour
- Many statistical measures explicitly designed to minimise effect of outliers
- Sometimes outliers are vital
- “exceptionally hard problems” dominate mean
- we missed them until they hit us on the head
- when experiments “crashed” overnight
- old data on smaller problems showed clear behaviour