search

twitter / AnomalyDetection

Anomaly Detection with R
GNU General Public License v3.0
3.57k stars 779 forks source link

Anomaly on small data #89

Open doriwal opened 7 years ago

doriwal commented 7 years ago

I have a basic question

I have small amount of data , its data of 1 day with 24 hours records I want to find anomaly , which is in the example below the record with [2017-09-15 01:00:00,5]

my data is [2017-09-15 00:00:00,140] [2017-09-15 01:00:00,5] [2017-09-15 02:00:00,141] [2017-09-15 03:00:00,144] ... [2017-09-15 23:00:00,135]

I used AnomalyDetectionVec instead of AnomalyDetectionTs res = AnomalyDetectionVec(df[,2], max_anoms=0.02,period= 24 , direction='both', plot=TRUE )

Its not working , I tried to change period value to 1 or 2 and still not working

Does this library works on small amount of data ? when I tested it with large set of data It did worked

doriwal commented 7 years ago

I found the solution I changed

res = AnomalyDetectionVec(df[,2], max_anoms=0.2,period= 11 , direction='both', plot=TRUE , only_last=TRUE )

I added only_last