Generic method to test spatial heterogeneity

Usage

spatial_hetero_test(x, ...)

# Default S3 method
spatial_hetero_test(x, ...)

# S3 method for class 'matrix'
spatial_hetero_test(x, coords, ...)

# S3 method for class 'numeric'
spatial_hetero_test(x, coords, ...)

# S3 method for class 'vector'
spatial_hetero_test(x, coords, ...)

# S3 method for class 'data.frame'
spatial_hetero_test(x, coords, ...)

# S3 method for class 'sf'
spatial_hetero_test(x, ...)

Arguments

x

The data to be tested.

...

Arguments passed on to spatial_hetero_test_data, spatial_hetero_test_data

resample: The total times of resampling with replacement. Default to 5000.
poly: The number of polynomial terms used by the polynomial estimator. Default to 2.
bw: The adaptive bandwidth used by the polynomial estimator. Default to 10.
kernel: The kernel function used by the polynomial estimator.
verbose: The verbosity level. Default to 0.

coords

The coordinates used for testing. Accepts a matrix or vector. For matrix, it needs to have the same number of rows as x. For vector, it indicates the columns in x and the actual coordinates will be taken from x.

Methods (by class)

spatial_hetero_test(default): Default behavior.
spatial_hetero_test(matrix): For the matrix, coords is necessary.
spatial_hetero_test(numeric): Takes x as values of a series variables stored by column, and coords as coordinates for each row in x.
spatial_hetero_test(vector): Takes x as values of the variable, and coords as coordinates for each element in x.
spatial_hetero_test(data.frame): Takes x as variable values (each column is a variable), and coords as coordinates for each row in x.
spatial_hetero_test(sf): For the sf object, coordinates of centroids are used. Only the numerical columns are tested.