Câu 26: E20-007: Data Science and Big Data Analytics
You are analyzing a time series and want to determine its stationarity. You also want to determine the order of autoregressive models. How are the autocorrelation functions used?
Nội dung câu hỏi
You are analyzing a time series and want to determine its stationarity. You also want to determine the order of autoregressive models. How are the autocorrelation functions used?
Các lựa chọn
Đáp án được giữ gọn theo nhãn A, B, C, D trong phần bình chọn tương tác.
- A. ACF as an indication of stationarity, and PACF for the correlation between Xt and Xt-k not explained by their mutual correlation with X1 through Xk-1. — đáp án hiện tại
- B. PACF as an indication of stationarity, and ACF for the correlation between Xt and Xt-k not explained by their mutual correlation with X1 through Xk-1.
- C. ACF as an indication of stationarity, and PACF to determine the correlation of X1 through Xk-1.
- D. PACF as an indication of stationarity, and ACF to determine the correlation of X1 through Xk-1.
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