One desirable aim within the financial industry is to understand customer behavior over time. Despite vast interest, I have seen that the goal frequently is unmet. Clearly, an array (apologies) of methodologies abounds for the analyst. One simple approach involves a SAS® macro (NB. the code is written in SAS® 9.2 for the PC). The macro generates a time series file and features options such as merging external data, maintaining the time series, and automatic labeling of attributes. Finally, I provide a practical example, especially suited for the beginning programmer, involving arrays and do-loop processing.
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