مقارنة مقدرات معلمة تمهيدية متغيرة باستخدام مقدرا انحدار خطي موضعي مع تطبيق عملي

Abstract EN

The choice of bandwidth is the one of the most important issues in the nonparametric estimate.

In this article we provide a nonparametric estimator many references refer it to its superiority and it is named as a Local Linear Regression estimator.

Due to great importance in data representation, different variable bandwidths are used.

Simulations as well as practical experiments (the actual data represents the annual rates of changes for the index's overall consumer price in Iraq) are used for this comparison to indicate which the best choice for those bandwidths to contribute to the construction of perceptions and predictions of sound to the problem under study