Take me to an introduction to SADIE for counts for a single set of data

x     y     data
1     2     0
1     3     6
2     1     3
2     2     1
.      .     .
.      .     .
.      .     .



I’m more interested in measuring spatial association;
give me an introduction to spatial analysis for two sets of data.

x     y     data
             set 1     set 2
1     2          0          0
1     3          6          3
2     1          3          1
2     2          1          1
.      .          .           .
.      .          .           .
.      .          .           .



Take me to where I can download a dynamic tutorial on the mathematical concepts
underpinning SADIE.