How (if possible) can I see the historical development of values like Stability, Difficulty, Retrievability of a card? Currently, the “Card Info” shows me the history of Date, Type, Rating, Interval, Ease, and Time.
Have you tried this add-on: Search Stats Extended
It has:
- Stability Time Machine
- Difficulty Time Machine
For R, you can look at card info. The forgetting curve graph shows that info.
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I just found sort of a way: in the card info (press i for current and CTL-ALT-i for prior), if you hover over the curve, the Retrievability and Stability values of the various sessions are displayed.
I would prefer a tabular, but at least the values are there.
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In fact, you don’t just see the values of the sessions but of every point in time.