f = repelemdist popSize; 目标函数

This line of code is using the MATLAB function repelem to repeat the dist vector popSize number of times, creating a new vector f. The dist vector likely contains distances between pairs of points, and the purpose of repeating it popSize times may be to evaluate the objective function for each individual in a population of size popSize. The resulting vector f will likely be used to evaluate fitness or select individuals for further optimization in an evolutionary algorithm.