This code is implements the nondominated sorting genetic algorithm (NSGA-II) in the R statistical programming language. The function is theoretically applicable to any number of objectives without modification. The function automatically detects the number of objectives from the population matrix used in the function call. NSGA-II has been applied in ARS research for automatic calibration of hydrolgic models (whittaker link) and economic optimization (whittaker link).

An interactive computer program was developed to simulate the interactions among the above factors. It shows how changing one factor impacts the outcome of the other factors for a single growing season. The user selects a climate, a crop, and soil characteristics from menu lists, and then sets the water table depth and quality, irrigation (river or well) water quality and then develops an irrigation schedule. On execution, the relative yield reductions due to over irrigation, under irrigation, and salinity, water table rise or fall and surface runoff are shown numerically for the growing season. Soil water content, soil salinity, water table depth changes and rain and irrigation events during the season are also shown graphically.

The Imperfect SSR Finder is an interactive website to help you find imperfect (and perfect) SSRs. You can test small snippets or upload large files, change the lengths and types of the SSRs your are looking for, and create output with SSRs in inverted case and/or color highlights. A tabular information file is also created in .CSV format, for easy import into any spreadsheet program.

Simulates water, heat, carbon dioxide and solute movement in one-dimensional variably saturated media.