Figure 4. (The plot of Autocorrelation function and Partial autocorrelation function up to lag 55 of the differenced series for the period Jan 1994 to July 2013 sd_d_rate means the seasonal difference of the first difference of naira/dollar exchange rate

From

Forecast Performance of Multiplicative Seasonal Arima Model: an Application to Naira/Us Dollar Exchange Rate

ONASANYA OLANREWAJU. K, OLUSEGUN ALFRED OLAKUNLE, ADENIJI OYEBIMPE EMMANUEL

American Journal of Applied Mathematics and Statistics. 2014, 2(3), 172-178 doi:10.12691/ajams-2-3-14