Calculated field based on customer history : QlikSense capability data enrichment
I am a QlikSense new user. I am trying to see how I can create new calculated fields within Qlik Sense to be able afterwards to use predictive models.
* To produce predictive variables, I need to enrich each row of the db ("shopping actions" table) with a new field. Each row represents a shopping action from a customer abc (customer id, payment status, venue date,...). For row "x", I need to have a field (column to add) describing "past buying behaviour from this customer" corresponding at the "x" date in this row (venue date).
I need to go through the whole "shopping actions" table focusing only on rows where customer id = "abc" AND venue date < venue date of row "x".
Below and example:
* the fields 1 to 5 are given from client
* the fields from 6 and 7 should be calculated and based on cutomers history
** example: customer 321 came 3 times
*****the 1st stime he was new and then no field to calculate as no history
*****the 2nd time
************value "28" is calculated from difference between current venue date and last venue date //
************value "Paid" is calculated from payment status in his last shoppingAction column.