topic Re: Trend Analysis in ArcGIS GeoStatistical Analyst Questions

Trend Analysis

TedCronin — Thu, 25 Aug 2011 21:51:38 GMT

When using the trend analysis on 422,584 points, the processing is really slow, so every movement of the little wheels just drags. Can these little wheels gets labels, or even tool tips? When trying to rotate a graph, then with the speed, and trying to make refinements via the wheels, is gets painful.

Re: Trend Analysis

TedCronin — Thu, 25 Aug 2011 21:53:25 GMT

I am also seeing the vertical rotate wheel works only sometimes, like if I whiz through it to flip it around, then flip it back, it seems to not do anything. I have to hit the horizontal wheels to get the rotation to process.

Re: Trend Analysis

EricKrause — Fri, 26 Aug 2011 16:08:26 GMT

You definitely want to take a subset of your data. The Trend Analysis tool is not really designed to be used with so many points; it will just look like a huge blob, and it will be very difficult to actually see any trend. Also keep in mind that when you rotate the graph, it's trying to dynamically move hundreds of thousands of points; you will definitely get lags and delays.

In geostatistics, several hundred points is more than enough for building the interpolation model. Giving so many points is unnecessary when looking at any of the ESDA tools.

Re: Trend Analysis

TedCronin — Tue, 30 Aug 2011 20:50:04 GMT

At this point, I am just kicking the tires, seeing where I can break the software, or if I can't, but yeah dynamically rendering hundreds of thousands of points, awesome.