def summarizeDurations(yakCursor, label):
return
print(label + ': Yak Lasting Duration')
creationTimes = [yak.time for yak in yakCursor]
finalLikeTimes = [(YakLikeCount.select().where(YakLikeCount.yak == yak.id)
.order_by(YakLikeCount.time.desc()).get().time) for yak in yakCursor]
durations = [] # fill up
for i in range(len(creationTimes)):
timeDelta = finalLikeTimes[i] - creationTimes[i]
minutes = timeDelta.total_seconds() / 60.0
durations.append(minutes)
print(summaryString(durations))
print('') # end with new line
def writeUpvoteCSV(yakCursor, filename):
return
with open(filename, 'wb') as output:
writer = csv.writer(output) # wraps stream
writer.writerow(['Elapsed Minutes', 'Upvote Fraction'])
# add points to scatterplot
for yak in yakCursor:
startTime = yak.time
finalCount = yak.finalLikeCount
if finalCount <= 0: continue
for like in YakLikeCount.select().where(YakLikeCount.yak == yak.id):
timeDelta = like.time - startTime # return type TimeDelta
minutes = timeDelta.total_seconds() / 60.0
if like.count <= 0: continue # avoid negative counts
if like.count > finalCount: continue # avoid high fractions
writer.writerow([minutes, float(like.count) / finalCount])
