Power analysis for monarchs and milkweed code

These scripts perform power analyses for milkweed, monarch eggs, and adult monarchs. Milkweed and eggs are simulated together; adults are simulated separately. Scripts test for either 1) power to detect trends or 2) power to detect differences among land-use sectors in density-when-present, as indicated in the file names. For demonstration purposes, each script runs only a small subset of scenarios and replicates, which finishes in a few minutes; the full set would take days to run unless performed in parallel on a supercomputer. Weiser_MMPower_Code0_PowerAnalysis_functions.r provides source code for functions that are used in the other scripts; scripts 1-4 are independent of one another.