Category Archives: correlated walk

8.1 leGUME (the Grand Unified Model of Everything)

This is the model presented in Chapter 8 of the book, which combines elements from many of the building-block models discussed in earlier chapters.

You can see a fairly typical example of long-term survival of the island colonisers in the video.

Details of the model are in Chapter 8 and additional information not included in the Chapter can be found here.

Click on the image to download and save the model NetLogo file. You will need to install NetLogo to run this file.

4.2 demonstration of the correlation length effect in random walks

This model demonstrates how a correlated random walk, when consecutive steps are aggregated, reverts to a simple random walk without correlation but with a longer mean step length. This effect means that correlated random walks are ultimately diffusive (not super-diffusive) like simple random walks.

Click on the image to download and save the model NetLogo file. You will need to install NetLogo to run this file.

4.1 random walks

This model implements a number of variations on the random walk including the lattice-based walk, the simple random walk, walks with different distributions of step lengths, and correlated (direction) random walks.

Two variants are shown in the videos to the right: a simple random walk, and a directionally correlated random walk.

Click on the image to download and save the model NetLogo file. You will need to install NetLogo to run this file.