3 ms·
This. You have an implicit assumption for exponential decay or a polynomial. Why isn't this linear? Some other function?
by dmourati 13y ago
This. You have an implicit assumption for exponential decay or a polynomial. Why isn't this linear? Some other function?
- trevmckendrick 13y agoThe more data you plot the more you'll find an exponential increase in sales for every increase in Gross Ranking. And if you watch the App Store rankings that makes sense. The apps at the top stay there, in the same relative order, for long periods of time. This suggests larger gaps in sales, vs lower ranking apps whose rankings fluctuate constantly. The purpose of this exercise was to make reasonable estimates, not to get it exactly right.