how to implement DMSPSO

Hello friends I need help with implementing DMSPSO. could you please help, I do appreciate your help in advance. 1_ how can I dived swarms to n sub swarm ? 2_ how can I regroupe randomly sub swarms inmatlab? Ifyou can show the code it'll a geat help . Many thanxxxxxxx

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Can you help me? I need the code of DMSPSO. Thanks, Ahmed