Pengantar Deteksi Anomali di R
Alastair Rushworth
Data Scientist
head(msales)
sales month
1 6.068 1
2 5.966 2
3 6.133 3
4 6.230 4
5 6.407 5
6 6.433 6
Uji Grubbs tidak tepat di sini
plot(sales ~ month, data = msales, type = 'o')

library(AnomalyDetection)
sales_ad <- AnomalyDetectionVec(x = msales$sales, period = 12,
direction = 'both')
Argumen
x: vektor nilaiperiod: periode pola berulangdirection: temukan anomali yang kecil ('neg'), besar ('pos'), atau keduanya ('both')Unduh paket dari https://github.com/twitter/AnomalyDetection
sales_ad <- AnomalyDetectionVec(x = msales$sales, period = 12,
direction = 'both')
sales_ad$anoms
index anoms
1 14 1.561
2 108 2.156
AnomalyDetectionVec(x = msales$sales, period = 12,
direction = 'both', plot = T)

Pengantar Deteksi Anomali di R