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kohlmeier

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I'm a bit ambivalent about that feature. I do think many folks will want/expect it, and it would be useful at times. At the same time, the primary use of the app I personally wanted is to add things I wanted to remember permanently, and let the algorithms handle all of the work of scheduling optimal practice. Gonna think about this.

The 'E' in the regression is the inferred/predicted value of the E variable for that exercise, using no problem history from that exercise--only what's pulled in through the Bayes net. (Sorry that wasn't clear)

The 'T' variable is likely just a case of multicollinearity with the 'E' variable and should go away on a full-scale data set. If not it can easily be removed from the model. The 'E' variable is dominating because is additionally captures cross-sectional affects across the various exercises in the regression.