Indexing to extract homogeneous arrays from heterogeneous arrays

A device receives, in a technical computing environment (TCE), a heterogeneous array that includes columns and rows, and receives a command that references multiple columns and one or more rows of the heterogeneous array. The device determines, based on the command, that the referenced multiple columns of the heterogeneous array include a same data type. The device creates, based on the command and based on determining that the referenced multiple columns of the heterogeneous array include the same data type, a homogeneous array that includes the referenced multiple columns and the referenced one or more rows of the heterogeneous array. The device outputs the homogeneous array for further processing.