เปรียบเทียบวิธี

	HP Filter	การแยกส่วนประกอบ STL: การแยกส่วนประกอบตามฤดูกาลและแนวโน้มโดยใช้ Loess
สาขาวิชา	เศรษฐมิติ	เศรษฐมิติ
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1997	1990
ผู้ริเริ่ม	Robert Hodrick & Edward Prescott	Cleveland, Cleveland, McRae & Terpenning
ประเภท	Penalized least-squares smoother	nonparametric iterative smoother
แหล่งต้นตำรับ	Hodrick, R. J., & Prescott, E. C. (1997). Postwar U.S. business cycles: An empirical investigation. Journal of Money, Credit and Banking, 29(1), 1–16.	Cleveland, R. B., Cleveland, W. S., McRae, J. E., & Terpenning, I. (1990). STL: A seasonal-trend decomposition procedure based on loess. Journal of Official Statistics, 6(1), 3–73.
ชื่อเรียกอื่น	Hodrick-Prescott Filter, HP Decomposition, Trend-Cycle Filter, HP Filtresi	Seasonal-Trend Decomposition using Loess, STL filtering, Loess-based seasonal decomposition, Mevsimsel-Trend Ayrıştırma (STL)
ที่เกี่ยวข้อง	3	3
สรุป	The Hodrick-Prescott (HP) filter is a penalized least-squares technique used in macroeconomics and empirical finance to decompose a time series into a smooth long-run trend component and a short-run cyclical component. Introduced by Hodrick and Prescott (1997) using postwar U.S. business cycle data, it has become one of the most widely applied filters in business cycle analysis, monetary policy research, and applied econometrics.	STL Decomposition, introduced by Cleveland, Cleveland, McRae, and Terpenning (1990), is a nonparametric procedure that separates a time series into three additive components — trend, seasonal, and remainder — using iterative locally weighted regression (loess). Widely used in economics, meteorology, and data science, it handles time series of any periodicity and is robust to the presence of outliers, making it a highly flexible alternative to classical decomposition methods.