MoransI | R Documentation |

Compute Moran's I for a matrix. A fast implementation of Moran's I for gridded data, with neighbours defined based on a radial distance. Note that when using radius to define the neighbourhood, a radius of one corresponds to the rook's neibhourhood. There is currently no equivalent to queen's neighbourhood.

MoransI(mat1, r1)

`mat1` |
a matrix of values; NA/Inf values must be coded as NA and are ignored |

`r1` |
an integer representing the distance (radius), within which nearby cells are considered neighbours in units of rows/columns |

a single numeric value for Moran's I

(TestMat <- matrix(c(1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1), nrow =5)) # the code below should return -1 MoransI(TestMat, r1 = 1)

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