distance calculation

I'm trying to cluster U.S. counties based on the following characteristics: Median wages Unemployment rate Average educational attainment Population Many clustering algorithms require the calculation of a distance matrix but I'm having trouble evaluating the pros and cons of the different...

Hi everyone, I was hoping someone could help me: I have data from a biologger attached to a leopard. One of the things this records is the position of the cat at certain times and what I would like to do is to calculate the distance moved between each consecutive fix, in distance units of...