Today I want to introduce you to one of my students: Patrick S.  As you will read below, Pat came to Salisbury University as part of the...

In the next couple of weeks I will be introducing you to some of my student friends who got the most out of their education, even though...

These stories always focus on the extreme cases – the $60,000 a year education.  But, there are other options.  I was a product of the...

My workbook for Statistical Problem Solving in Geography (ISBN-10: 1502982293, ISBN-13: 978-1502982292) is now available for purchase...

In our book we illustrated the use of quadrat analysis for determining whether points were random, clustered, or distributed.  Figure...

The last post illustrated how to create a Nearest Neighbor Index (NNI) for a set of points using SQL.  However, make any inferential...

It is nice to get back to the book, and start talking about Statistical Problem Solving in Geography again.  Today we are going to look...

Dale posted a request to see Line Density recreated in SQL.  Please take a look at the ESRI help topic for line density. I will warn you,...

I was recently asked by danb to illustrate the ARC/INFO function symmetrical difference. We basically want to find those areas in layer A...

We are going to conclude our overlay posts with the ARC/INFO UNION command.  This should be a lot easier than it actually is.  I think...

The masthead says “no opinions – just code”, but I have to give one quick opinion of my daughter: she graduates college tomorrow and I am...

The ARC/INFO IDENTITY operation seen here is sometimes confusing because it takes ALL of the Input feature, and the part of the IDENTITY...

I promised you that I would address the attributes.  Remember, our previous query only performed the ClipSubract for the geometries, and...

Over the next week I am going to illustrate how to create the ESRI ARC/INFO commands of ERASE, INTERSECT, IDENTITY, and UNION (for you...

Today we are beginning another four-part session on the classical ESRI topological overlay functions of Erase, Intersect, Identity, and...

We’ve spent some time looking at how to create spatial interaction models using PIVOT tables and spatial constructs in SQL.  The one last...

We recently looked at spatial interaction in the form of inverse distance weighting.  However, some spatial interaction matrices are...

Today I am cheating a little. In the last post, we created a symmetrical distance matrix using strict distances between 6 cities.  I...

Today I am at #delmarvagis. One of my other hats at Salisbury University is that of the Technical Director of the Eastern Shore Regional...

In my book Introduction to Statistical Problem Solving in Geography, we talk about relationships among geographic objects. These...