Usable number of observations in Demantra

Hi All,

Found below lines from engine log.

14:00:19:406 [2,4040,517]  has a usable number of observations.(64)

14:00:19:407 Forecasting [2,4040,517]

14:00:19:421 Node has Intermittent data.

14:00:19:445 [2,4040,517]  forecast succeeded using models F,J

[2,4040,517]  --> [level_id,item node,location node]

This forecast has generated using model F,J

has a usable number of observations.(64) ---> what is this number 64 indicates?

Our system in weekly time bucket. Parameter for history time bucket to be considered is 78 (weeks).

As per engine log, first date is 05-MAY-14 and max sales date is 26-OCT-15.

- Per above log  [2,4040,517] has only one combination in mdp_matrix with prediction_status=1

- That combination have 74 records in sales_data table within the mentioned time span of 78 weeks, and 134 records irrespective of time period.