Aggregating up one level

For the next set of Aggregate examples, a dataset from the repository maintained by UC Irvine will be used. This data can be downloaded in Excel format at the following link. It contains order information from a UK based online retailer. The data contains eight fields and 541,909 rows:

Source: Dr. Daqing Chen, Director: Public Analytics group. chend '@', School of Engineering, London South Bank University, London SE1 0AA, UK. Dataset Information: This is a transnational dataset with data from 37 countries that contains all the transactions occurring between December 1, 2010 and December 9, 2011 for a UK-based and registered non-store online retail. ...

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