Campaign_id, Date, {some features}, Number_of_new_customers
Test set consists of multiple campaigns. For each of them we are given several first days in train data. For example, if a campaign runs for two weeks, we could have three first days in train set, and all next days will be present in the test set. For another campaign, running for weeks, we could have the first 6 days in the train set, and the remaining days in the test set.
Identify train/test split in a competition.
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