What data grains are available in free supermarket data?

All of the ‘Big Four’ provide data at the following grains (follow this link for an explanation of data grain):

  • Day x Item
    – aggregate store metrics (sales, waste, stock, availability etc.)
  • Day x Item x Depot
    – depot metrics (stock, inbound service, outbound service etc.)
  • Week x Item
    – weekly summary of combined store and depot metrics

The full list of grains is available here.

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