I'm using the SPP procedure to test for Complete Spatial Randomness. The procedure appears to require a rectangular area for analysis but I would prefer to test for CSR over a circular region. Is this possible and, if so, how?
For mapped point patterns, PROC SPP does not support circles or other arbitrarily shaped regions. However, if you had a spatial point pattern and you did not give any boundary specification, PROC SPP 'estimates' a boundary using the Ripley-Rasson estimator. However, the starting point for the Ripley-Rasson estimator is also a rectangle.
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ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.