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This paper presents a new approach to the radial distribution system (RDS) analysis. The proposed algorithm makes use of data structure (DS) in a MATLAB programming environment. It avoids the use of unique lateral node and branch numbering process that is otherwise required. The proposed method forms a Bus Incidence Matrix (BIM) which is then processed to create a DS. The DS and MATLAB code for its formulation and the analysis of a RDS is presented. A number of examples have been considered which have been successfully solved. The performance of this method is detailed. Additionally, as this DS is dynamically declared and alterable, it can handle rapidly changing topology of RDS.