| Autor: |
Alshqaq, Shokrya S., Abuzaid, Ali H., Ahmadini, Abdullah A. |
| Zdroj: |
Iranian Journal of Science; April 2023, Vol. 47 Issue: 2 p531-543, 13p |
| Abstrakt: |
The problem of choosing the best regressors to fit the circular regression data has not been addressed. We focus on the problem of finding the optimal regression-like equations (ORLE) in the Sarma and Jammalamadaka (SJ) circular regression model (Sarma and Jammalamadaka 1993). First, the issues of under-fitting and over-fitting of regression equations in the SJmodel are addressed. Then, we extend Mallows’ Cpand AICand their robust versions to the SJcircular regression model. A simulation study is used to investigate the performance of the proposed criteria. Results showed that robust circular Mallows’ Cpand AICare effective in selecting an accurate ORLE for circular regression models in both the clean and contaminated data sets. An application of the proposed procedures is discussed using a real medical data set. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
Full text from SpringerLink