Contents |
Repetition history window
With Learning : Statistics : Repetition history (Shift+Ctrl+H) available from the element menu you can quickly display the history of repetitions for the currently displayed element.
Figure: Repetition history dialog box displaying the history of repetitions for the current element. In this example, no data before the 5th repetition is a result of the fact that the repetition history was collected in SuperMemo only as of 1996, while the presented collection is much older (with 4 repetitions executed before or in 1996). Also, the hour data is missing in older repetitions due to the fact that the repetition hour is registered in repetition history only as of SuperMemo 2006 (hours are used in correlating retention with sleep data available from SleepChart).
Repetition history data
- No - the number of times the element was repeated/reviewed. (f) to the left of any given repetition number indicates the repetition when the item was forgotten (i.e. you were not able to provide the correct answer). In the example above, the item was not recalled at the 2nd repetition.
- Rep - the first figure represents the number of consecutive successful repetitions (when you graded yourself Pass (3) or higher). The other one shows the cumulative number of times you did not remember the Item (i.e. your grade was Fail (2) or less) since you first memorized it. Note that each time you forget the answer, the first figure gets reset to 1.
- Date - the date when you repeated/reviewed the element, or, when it is scheduled for the next repetition (Next at the top)
- Hour - the time (hh:mm:ss) when you repeated a given element
- Grd - the grade that you gave yourself at a given repetition. Since you do not grade yourself on topics, the column reads Topic for this type of element
- Intrv - the number of days between successive repetitions: the one from the preceding row and the one from the current row
- Prior - the relative position of the element in the priority queue at the time of the repetition (the lower the number, the higher the priority)
- Difficulty - element's difficulty after a given repetition
- S - element's stability after a given repetition
- R est. vs. R - retrievability as computed with the DSR model (Algorithm SM-17), and retrievability derived from the expected forgetting index (Algorithm SM-15). Darker fields show higher predictive differences
- Dev - retrievability deviation: the disparity between retrievability and actual recall expressed with the default metric (as percent)
- Postp. - the number of times the element was postponed until a given repetition
Right-click over the Repetition history window opens a context menu with the following items:
- Edit (Ctrl+E) - edit the repetition history (this may affect the algorithm and sleep optimization)
- Copy (Ctrl+C) - copy the element's repetition history to the clipboard
- Delete (Del) - delete the element's repetition history (after confirmation)
- Save (Ctrl+S) - save the repetition history if it has been corrected for errors
- Close (Esc) - close the repetition history window