According to the several published articles available in RG, it is found that raingauge network is often optimized by combining geostatistics (such as kriging) and optimization techniques including Particle Swarm Optimization (PSO), Simulated Annealing (SA), Genetic Algorithm (GA), Artificial Bee Colony Optimization (ABC) etc. I need a sample MATLAB code for the same to optimize a raingauge network. Any help in this regard would be highly appreciated and acknowledged.