topic Re: Generate Spatial Weight Matrix in Spatial Statistics Questions

Generate Spatial Weight Matrix

HuaqiYuan — Mon, 18 Apr 2011 04:31:20 GMT

I am wondering why under generate spatial weight matrix there is no option for "zone of indifference". Anyone know why?

Thanks!

Re: Generate Spatial Weight Matrix

LaurenRosenshein — Wed, 20 Apr 2011 17:47:19 GMT

Hi Franky,

That is a great question! Basically, the zone of indifference is not an option in the Generate Spatial Weights Matrix tool because we made the decision that for almost all use cases the difference between zone of indifference and fixed distance band is very, very small. Once the distance band (d) gets large (even above 10, for instance), the weight of features outside of that distance band is 1/d...which becomes negligible for most use cases). We still have zone of indifference in the Hot Spot Analysis tool and others because once you provide a parameter option you have to continue to provide those parameters for backward compatibility, but when we designed the Generate Spatial Weights Matrix tool we decided not to include it. I would suggest running the same analysis with Fixed Distance Band, and you should see very, very similar results.

Hope this helps!

Lauren Rosenshein
Geoprocessing Product Engineer

Re: Generate Spatial Weight Matrix

TimothyElliott — Sat, 13 Aug 2011 12:28:34 GMT

With these different functions for the definition of the neighborhood is it possible to have a means to specify your own parameters or formula. I understand that the zone of indifference is actually very helpful but if it were possible to change the formula from 1/d to say 1-(1/d) or even 1/(d/2) etc as this would allow more flexibility as there are many more cases in which the relationship of the data cannot be analysed with the standard functions.

ideally it would be best if the Gi* function could have a zone of indifference with a Gaussian trend from the zone boundary not starting at the central point.

Re: Generate Spatial Weight Matrix

LaurenRosenshein — Mon, 15 Aug 2011 21:29:41 GMT

Hi Tim,

That's a great question! Actually, almost all of the spatial statistics tools are python scripts, which means that you have access to the underlying code! If you right click on the Generate Spatial Weights Matrix tool and choose to "Edit" it, it will open in your script editor of choice. From there you can go ahead and make any changes that you want! My suggestion would be to save the original script files before you start making changes, just to make sure you can always revert back if need be. 🙂

Re: Generate Spatial Weight Matrix

AttentivernKauk — Mon, 23 Jun 2014 02:30:50 GMT

Using data matrix sdk for .net to generate data matrix images for .NET Windows applications.

Re: Generate Spatial Weight Matrix

fenden — Mon, 22 Dec 2014 02:38:51 GMT

I dont't know which barcode generator you were using. But I think maybe your barcode generator don't support this set the size of barcode.

I use .net data matrix generate sdk. there are size options, so you can customize the width height and so on.