public static ICustomerOrderDataPoint CalculateBucket(ICustomerOrderDataPoint dataPoint)
{
if (dataPoint.OrderDate.HasValue)
{
var diff = dataPoint.OrderDate - dataPoint.CohortDate;
dataPoint.CohortPeriod = (diff.Value.Days / 7) + 1;
}
return(dataPoint);
}
private bool IsFirstOrder(ICustomerOrderDataPoint dataPoint, ICollection <ICustomerOrderDataPoint> data)
{
var firstOrderForCustomer = data.Where(d => d.Id == dataPoint.Id)
.OrderBy(d => d.OrderDate)
.FirstOrDefault();
return(firstOrderForCustomer != null &&
firstOrderForCustomer.OrderDate == dataPoint.OrderDate);
{
}
}
