@ankit194 wrote:
The CUSTOMER dataset contains name and address information for every customer the company has and the unique identifier for the customer is CUSTOMER_NUMBER. The PURCHASES dataset contains information on the purchases made by customers in the last three months and also contains the CUSTOMER_NUMBER variable. Show how you would create a dataset containing all the customers that had not made any purchases in the last three months.
Please someone explain me how to approach this problem with usage of R code?
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