I am trying to create a map of forest type diversity with ArcMap. I have a polygon forest layer with the different forest types as attributes (e.g. 0815, 0862, 0813, ..., which stands for 'mixed forest', 'oak forest', and so on.)
Using Patch Analyst I have created a Hexagon map and intersected it with the forest polygon layer. Usually I would now use 'field statistics' to calculate the variance of forest types for each Hexagon field and then join the result table to the Hexagon polygon layer to create a diversity map. Calculations don't work, however, since I have qualitative Features instead of quantitative ones.
Does somebody have an idea how to do this?
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Using Patch Analyst I have created a Hexagon map and intersected it with the forest polygon layer. Usually I would now use 'field statistics' to calculate the variance of forest types for each Hexagon field and then join the result table to the Hexagon polygon layer to create a diversity map. Calculations don't work, however, since I have qualitative Features instead of quantitative ones.
Does somebody have an idea how to do this?
أكثر...