Hi There,
I'm having some trouble of figuring out an approach to detect features that have "regressed".
My data looks something like this:
<Fruit> <Batch>
Orange, 1
Apple, 1
Pear, 1
Orange, 2
Apple, 2
Pear, 2
Orange, 3
Pear, 3
So look at this as Batch 1 had all three fruit, batch 2 had all three fruit, but in batch 3, Apple is missing.
What I am interested in is knowing when a fruit went missing, specifically in a sequential view.
Meaning, I don't really care about the relationship between batch 1 and 3, but I want to know that between batch 2 and 3, Apple went missing. So even if I have 10 batches, I only really care if I have "pineapple" in batch 8, but missing in 9.
I hope my obscure example makes sense and please let me know in case any additional information is needed.
Thanks a lot!