I am tryning to cluster 20 000 items based on their sales trend. I have obeservation of 52 weeks, and I want to create 20-30 clusters which will groupe the items based on which week/period of times they increase.
Ex how may excel sheet look;
Column 1 : list with items
Column 2 : Sales week 1
Column 3 :Sales week 2
.
.
Column 53: Sales Week 52
I have tried with both function clara() and fkm.gkb(), but Iam not satisfied with the result. Does it exist a better function to use? Or should I change my parameters, if so which one?
Thank you!