out=name Output raster containing lag map
measure=name Spatial dependence measure (Moran's I or texture)
options: moran,texture
default: moran
V1.0 written 17.6.92 to calculate Moran autocorrelation statistic. V2.0 written 18.7.92 to also calulate Haralick's grey-tone spatial dependence textural measures. V2.1 modified 18.9.95 to conform to standard GRASS program structure. Future improvements could include (i) Option of faster, memory intensive option; (ii) Further lag dependent measures; (iii) Cumulative lags under some distance weighting function. (iv) Option of ignoring/including zero values in the calculation. Jo Wood, November, 1995