Hamdani, Khairul2023-03-032023-03-032022-12PerpustakaanElfitrahttps://repository.unri.ac.id/handle/123456789/10881Percentage of poor people is an indicator used to measure poverty in an area. Riau Province has data on the percentage of poor people that fluctuates. In this study, the Fourier series nonparametric regression method was used to model the percentage of poor people in the Regency/City Riau Province in 2014-2018. Factors that are thought to influence the percentage of poor people in Riau Province are the open unemployment rate, per capita expenditure, and the average length of schooling. This study resulted in the best Fourier series model at 𝐾 = 4 with a minimum GCV value of 33.50 with 16 model parameters and produces a MAPE value of 17.61%, which means that the MAPE value is in the second category, which is good.enPercentage of poor peopleFourier seriesnonparametric regressionArticle