I need to convert about 100 different sets of points into percentage volume contours. These are currently in vector format.
What would be the most efficient way to do this? I'd rather do it in ArcGIS but free tools / software is also an option, provided they are reasonably easy to use (I'm not too familiar with coding / prefer user-friendly interfaces).
I'm hoping there's something out there I've missed - so far my only option is to do this in GME after converting the points to raster within ARC. Even with batch conversion it will take me a while to insert each of the files in, one by one (plus I don't fully understand what some of the conversion options actually involve).
As a side problem, I also have in-group overlapping points (points in the same location) which I'd prefer to include in the PVC calculation as they are.
Any help will be much appreciated -
EDIT: Do see your point about explaining a little more. Basically I'm looking at naming conventions for different places. For each name, there are a bunch of points which correspond to where people perceive this place to be. Ideally: assuming this follows a normal distribution in space, I'd like to do kernel density estimates of these (gaussian) and then do contour lines which reflected the % distribution (so 95%, 50% and a couple of others maybe). It's exploratory, I can't code, but I'm looking to see if I can do some contours of a bunch of different places and where people think these places are - a sort of vernacular gazetteer. I have at least 100 places though, & each of these should have their own set of contours. Hawth's KDE tool seemed perfect for this as it did both gaussian KDE and PVC's at the same time in batches. Unfortunately it won't work in ArcGIS 10.1 and I can't afford the days it would take me to figure out GME at the moment (would like to though). So I'm a little stuck & need an efficient way to do this.