"TimeSeries - Part 1"

1. Statistical moments.
2. Stationarity
3. Seasonality
4. Autocorreltion

Pre Processing

1. Detrending
   1. Season
   2. Non-stationary (mean and variance change based on time)
2. Autocorrelation
3. Outliers
4. Low Pass filers
   1. Moving
   2. Exponential

Stationary

how to check if time series are stationary or not. ?

1. ADF Test
2. KPPS Test

how to make time series sationalry ?

1. Differencing
2. Log Operation
3. Seasonal Differencing