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Project marginsums

Statistical tools for margin sum based matrix null models from manuscript "Properties of fixed-fixed models and alternatives in presence-absence data analysis".

Initialization

Build the system:

cd code
./build.sh

Because of copyright reasons the Vanuatu dataset needs to be obtained from Diamond & Marshall (1976). Write down the presence-absence data table into a binary matrix and save it as data/vanuatu.mat. The matrix should have 56 rows and 28 columns with fill ratio of 0.564 (ratio of ones among all cells).

Initialize randomized datasets:

matlab
experiment_datasets_init.m

In the end you should have data/datasets.mat generated.

Experiments

Run the experiments:

matlab
experiment_convergence.m
experiment_datasets_run.m
experiment_datasets_print.m