Michael F. Dacey

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Spatial autocorrelation is a concept that helps to define the field of spatial analysis. It is central to studies using spatial statistics and spatial econometrics. In this paper, we trace the early development of the concept and explain the academic links that brought the concept to the fore in the late 1960s. In geography, the importance of the work of(More)
The purpose of this paper is to describe a method for analysis of one type of pictorial information that is abstracted from maps. The picture is a line diagram or graph that, in the language of graph theory, is a planted plane tree in which each vertex has a valency 1 or 3. In hydrology and geomorphology this type of graph is interpreted as a channel(More)
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