Source data must be in columns as: [X] [Y] (each case in a separate row, column separator can be either space, tab or semicolon, decimal separator can be either point or comma). Lines beginning with a character (column names) are excluded. Aggregation / segregation is measured comparing the mean squared distance to the expected value in case of random location of the same number of objects. The aggregation and significance is not calculated if local kernel contains only a single object.

Exercise 4148.