Deleting old reviews?

[neat ocean]

I did 4 reviews in 2021 then didn't touch the app again until 2024. Is there any way I can remove those 4 reviews so my start date is effectively later? The 4 reviews then huge pause currently throws off my all time stats

[marble sierra]

Do those cards still exist in your collection?

[neat ocean]

I think so, although can't figure out a way to identify them

[marble sierra]

Try prop:rated<-600 -- cards with review history from more than 600 days ago (I'm guessing that number from your graph). Or try paging back through Stats > Calendar to find that study day and click on that box.

If you find them, are these cards you've continued to study since then?

[neat ocean]

the prop:rated filter has let me find them, thank you. I have continued to study them yeah. Is there a way to clear that furthest back review without clearing all reviews?

[marble sierra]

Not safely/easily. 🫤

• I only know of one add-on that I trust to do this, and it deletes all of the history for a card. That's an option for you here (reset to New, then remove history), but not a very attractive one, I'm sure!

• To get a corrected Stats page without making any changes, you could (a) move those cards to a separate subdeck, or if you're running the Stats across your whole collection (b) tag those notes exclude and run your stats with -tag:exclude in the search filter.

• It seems like this could be done with some extremely careful database editing -- either to remove those earliest lines from your review history, or to change their dates to the day before you started for real. But you should be careful who you accept advice from about that -- and I'll tell you right now that I'm not competent to do it! There are a lot of dependencies between things in the database that you'd need to be careful of and I just don't know if it's worth the risk.

[A side-note: FSRS isn't too happy with "headless" review history -- history that doesn't start with a New card and Learn state. That's probably not a big deal with just a few cards, but something to be aware of.]