The approximate-profile likelihood estimator for the spatial autocorrelation parameter from a simultaneous autoregressive (SAR) model (Li et al. 2007). Note, the
APLE approximation is not reliable when the number of observations is large.
aple(x, w, digits = 3)
Li, Honfei and Calder, Catherine A. and Cressie, Noel (2007). Beyond Moran's I: testing for spatial dependence based on the spatial autoregressive model. Geographical Analysis: 39(4): 357-375.
Numeric vector of values, length
n. This will be standardized internally with
n x n row-standardized spatial connectivity matrix. See shape2mat.
Number of digits to round results to.
the APLE estimate, a numeric value.
APLE is an estimate of the spatial autocorrelation parameter one would obtain from fitting an intercept-only SAR model.