Table 1 Descriptive statistics of our consumer purchase dataset.

From: Simulation and identification of foodborne outbreaks in a large supermarket consumer purchase dataset

Consumer purchase dataset properties

n

Number of customers

920,384

Number of items

30,929

Total number of purchases

222,190,805

Median proportion of weeks each customer registered purchases

17%

Proportion of total purchases by top 1% of frequent customers

9%

Median number of purchases by item

176

Proportion of total purchases made up of top 1% most popular items

21%

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