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replace fi adjustment with factor

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This commit is contained in:
Damien Elmes 2012-05-20 21:35:56 +09:00
parent 745bbe1382
commit d9348e72dd
2 changed files with 7 additions and 7 deletions
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3
anki/decks.py
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@ -68,7 +68,8 @@ defaultConf = {
'ease4': 1.3,
'fuzz': 0.05,
'minSpace': 1,
'fi': [10, 10],
# in beta11+
'ivlfct': 1
},
'maxTaken': 60,
'timer': 0,

11
anki/sched.py
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@ -790,14 +790,13 @@ did = ? and queue = 2 and due <= ? limit ?""",
interval = (card.ivl + delay/2) * fct
elif ease == 4:
interval = (card.ivl + delay) * fct * conf['ease4']
# apply forgetting index transform
interval = self._ivlForFI(conf, interval)
# apply interval factor adjustment
interval = self._ivlWithFactor(conf, interval)
# must be at least one day greater than previous interval; two if easy
return max(card.ivl + (2 if ease==4 else 1), int(interval))
def _ivlForFI(self, conf, ivl):
new, old = conf['fi']
return ivl * math.log(1-new/100.0) / math.log(1-old/100.0)
def _ivlWithFactor(self, conf, ivl):
return ivl * conf.get('ivlfct', 1)
def _daysLate(self, card):
"Number of days later than scheduled."
@ -1002,7 +1001,7 @@ did = ?, queue = %s, due = ?, mod = ?, usn = ? where id = ?""" % queue, data)
return dict(
# original deck
ease4=oconf['rev']['ease4'],
fi=oconf['rev']['fi'],
ivlfct=oconf['rev']['ivlfct'],
minSpace=oconf['rev']['minSpace'],
fuzz=oconf['rev']['fuzz']
)