Short post on a very useful GIS extension today, for ArcGIS 9.x. It's called
Hawths Analysis Tools for ArcGIS and it is great. For example, if you have a layer with a number of different points, you can quickly create a n x n distance matrix in csv format. There are lots of other very useful tools. Here's an example screenshot:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8ZuxjLtgiLL9T8dV3zi8w4MJNkeQknQFYK9l-rU1tub6mS5V9foiyoGh8-Z1a400YGpo_o7FQUy8jZAV_Lh0wNy56_Nq-RRw6z2uM33lqXnj9yGOKZbcckyHgACp-KiIAuFilDFKm_jU/s320/hawth.png)
It really is great, and it's
a FREE download.