I have a question that seems really stupid, but I’ve already searched and can’t figure out how to solve it. I recently deleted all the cards from my main deck and started fresh with Anki. However, in the statistics, when I filter by ‘deck life’ or ‘collection’, the review data from the deleted cards is still there. Is it possible to remove this history? Can anyone help me? My fear is that this history will influence the FSRS parameters. I’m attaching images to illustrate what I mean
Data for deleted cards should be visible when you select “collection” but not when you select “deck”. These screenshots suggest that you haven’t deleted the cards yet.
What do you get if you go to the Browse screen and search for deck:*?
Your screenshots are from the “old” stats screen – as modified by an add-on. Do you see the same thing when you go into the regular Stats screen and look at Reviews (or Calendar)? There should definitely be a difference between looking at the deck and looking at the collection.
I don’t think you need to worry about that. Once the “Cards” record is gone from the database, those review logs can’t be tied back to a deck or a preset. As long as you haven’t modified the optimization filter in your deck Options, FSRS is only looking at the history of existing (and unsuspended) cards.