Archive for January, 2005

5 by 3

Saturday, January 29th, 2005

Take on the world with a stack of 5 by 3 index cards – one way to get Web sites sorted before clicking on the Dreamweaver icon when building a moderately complex Web site.

This page describes card sorting techniques to help plan Web sites. Ideally card sorting can help define content – not so much [...]

Normal distribution sample simulation

Saturday, January 15th, 2005

Histograms are meaningless for datasets smaller than about 500 items – you will be better off using a dotplot. I think that the ‘error bar’ for each bar of the histogram can be approximated by the square root of the frequency so that a bar with a frequency of 36 could have a standard deviation [...]

Blood spatter pattern analysis

Saturday, January 1st, 2005

The MathsWorks Project has a series of laboratory projects on different aspects of Maths in Biotechnology. One of the projects is about blood spatter pattern analysis and has a very usable practical using milk to calibrate the relationship between drop stain shape and angle of surface.

There is also a good treatment of the mathematical assumptions [...]