about project cyclic model analysis on sequential patterns
It is a shopping project. In this project we are calculating the time difference in periodical item sets (if an item a is brought & after 3 days item b is brought then we calculate the all time difference of such periodicity). In my project paper there are 4 algorithms are there Trend Distribution function, Generalized periodicity detection, trend modeling & cyclic model analysis. In paper there is a formula f(x)=(24-x)/18*(sin(x)+1.5).(x,f(x)) are coordinates of graph. No much more is given about x&f(x) can you help me what is x & f(x)?
manoj psPosted Feb 23, 2011, 2:19 PM
ex: if item a is purchased at 1 'o clock, and item b is purchased at 2'o clock and again at 3,4, and 5'0 clock,
so for 1 hr interval, x =1 hr,then f(1)=1,
x=2 hr, f(2)=1,
x=3, f(3)=1,
x=4, f(4)=1.
if item a is purchased at 3 'o clock n item b is purchased at 4'o clock
then for 1 hr interval, x =1 hr,then f(1)=2, means for 1 hr difference this pattern occurs twice...