When we use the moving window to calculate density distribution in spatial analysis, the window size is a key parameter. While few of the researches talked about how to determine the window size.
For example, someone only told us he used a 3*3 window to do analysis. But why is 3*3? Maybe if we change the window size, the result may be different.
Will you please give me some advices about to determining the window size? Is there any criterion?