Is the plot "White noise"?

Asked Jul 21 '20 at 17:38

Active Jul 21 '20 at 17:45

Viewed 43 times

To stabilize the time series named "walk" (it is daily data), I applied log transformation and trend is removed through differencing and plot looks stationary. Below the plot of acf and pacf of final time series is given.

I read this and this and unable to decide the order of the time series for modeling in ARIMA. May I know how to interpret this plot?

edited Jul 21 '20 at 17:45

asked Jul 21 '20 at 17:38

StatsMonkey

it is daily data and I assume now may be seasonality is there ?... – StatsMonkey Jul 21 '20 at 17:44
4

Yes, I accidentally pressed delete and my comment disappeared. Yes, there appears to be seasonality. You need to remove this by seasonal differencing or Add a regression variable that captures day of the week pattern. – forecaster Jul 21 '20 at 17:46
@forecaster .. I tried as ns – StatsMonkey Jul 21 '20 at 19:35

Is the plot "White noise"?

0 Answers0