An intuitive approach to analysing small point-source spatial data sets

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Abstract
Sophisticated Geographical Information Systems require major intellectual input for proficient use. Simple GIS are easy to use but often lack important features. One of these is the ability to fit an accurate surface to or contour point data. We demonstrate an approach to analysing spatial data (whether from point source or not) which would also be suitable for many users interested in the analysis and mapping of small spatial data sets. Examples include a Direct Gradient Analysis of a montane heath community and an appraisal of a scheme for assessing frost hazard. The approach is powerful and easy to use; it is also intuitive as spatial relationships are not lost during error checking or analysis.