week of jan 31

In class we learned how to test for complete spacial randomness with the plant species with the largest amount of plants. I wanted to do this with another plant species. I took the second largest plant species and I plotted all the occurrences of the plant.

At first glance this looks random. Lets see if it is distributed randomly. To do this we need to test for a homogeneous Poisson distribution. I divided up the model into 10,000 pieces and check for the chi squared statistic. I got a chi squared probability of 1.9 * 10^-57, a very small probability. The data fits a Poisson distribution very poorly.

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