View source: R/EFDR_functions.R
test_image | R Documentation |
This function generates an image for test purposes. The image is that of a filled circle at the centre.
test_image(h = 1, r = 10, n1 = 64, n2 = 64)
h |
amplitude of the filled circle |
r |
radius of the circle (in pixels) |
n1 |
image height in pixels |
n2 |
image width in pixels |
List with two elements
z
the test image
signal.grid
the x-y grid in long table format
Shen, X., Huang, H.-C., and Cressie, N. 'Nonparametric hypothesis testing for a spatial signal.' Journal of the American Statistical Association 97.460 (2002): 1122-1140.
Z <- test_image()$z
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