Dear All I have sampled three rectangular fields within a larger area and measured a variable of interest at a lot of points in each of these fields. Values were taken from all over each of the sampled fields but are not necessarily over a systematic grid. I am interested in testing whether the three sampled fields come from the same population. However, an ANOVA (or other similar tests) assumes that there is no correlation between values within each of the sampled fields, which isn't true because of the spatial nature. I'm sure that similar studies have been done and would appreciate any pointers to useful sources or appropriate statistical tests.
For those who are interested the data are depths of snow on different floes in the same area of the Antarctic. Many thanks Chris
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