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My data is at a monthly customer level. I would like to track customer movements between groups. How do I do this using set analysis?
SnapshotMonth, Cust_ID, Segment
Mar-2016, 1, Mass
Mar-2016, 2, Mass
Mar-2016, 3, Affluent
Mar-2016, 4, Mass
Mar-2016, 5, Affluent
Mar-2016, 6, Mass
Jun-2016, 1, Mass
Jun-2016, 2, Affluent
Jun-2016, 3, Affluent
Jun-2016, 4, Established
Jun-2016, 5, Established
Jun-2016, 6, Affluent
I want my table to show segment movement between Mar to Jun
Mass -> Mass, 1
Mass -> Affluent, 2
Mass -> Established, 1
Affluent -> Affluent, 1
Affluent -> Established, 1
I had the data Joined so it was on one row eg
Mar-2016, 1, Mass, Jun-2016, 1, Mass
Mar-2016, 2, Mass,Jun-2016, 2, Affluent
however, this is inefficient. It doesn't allow the flexibility of comparing different months unless all combinations are loaded.
Each month's dataset has about 2.5 million records. And the table has 100 columns. The QVD files are large and qliksense is showing slow performance in loading data and loading visualisations.