1. A computer-implemented method, comprising: using a computer, analyzing a hierarchical database representing circuit elements of an integrated circuit layout to determine one or more electrical interactions between the circuit elements, the determined one or more electrical interactions comprising one or more electrical interactions for a repeating element of the integrated circuit layout; and using the computer, analyzing the repeating element of the integrated circuit layout at at least two placements of the repeating element in the integrated circuit layout using at least one of the one or more electrical interactions for the repeating element at each of the at least two placements of the repeating element.