Model Regresi Semiparametrik Spline untuk D ata Longitudinal pada Kasus Demam Berdarah Dengue di Kota Makassar

Syafruddin Side, Wahidah Sanusi, Mustati'atul Waidah Maksum
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Abstract

Abstrak. Regresi semiparametrik merupakan model regresi yang memuat komponen parametrik dan komponen nonparametrik dalam suatu model. Pada penelitian ini digunakan model regresi semiparametrik spline untuk data longitudinal dengan studi kasus penderita Demam Berdarah Dengue (DBD) di Rumah Sakit Universitas Hasanuddin Makassar periode bulan  Januari sampai bulan Maret 2018. Estimasi model regresi terbaik didapat dari pemilihan titik knot optimal dengan melihat nilai Generalized Cross Validation (GCV) dan Mean Square Error (MSE) yang minimum. Komponen parametrik pada penelitian ini adalah hemoglobin (g/dL) dan umur (tahun), suhu tubuh ( ), trombosit ( ) sebagai komponen nonparametrik dengan nilai GCV minimum sebesar 221,67745153 dicapai pada titik knot yaitu 14,552; 14,987; dan 15,096; nilai MSE sebesar 199,1032; dan nilai koefisien determinasi sebesar 75,3% yang diperoleh dari model regresi semiparametrik spline linear dengan tiga titik knot..Kata Kunci: regresi semiparametrik, spline, knot, Generalized Cross Validation, Demam Berdarah Dengue.Abstract. Semiparametric regression is a regression model that includes parametric and nonparametric components in it. The regression model in this research is spline semiparametric regression with case studies of patients with Dengue Hemorrahagic Fever (DHF) at University of Hasanuddin Makassar Hospital during the period of January to March 2018. The best regression model estimation is obtained from the selection of optimal knot which has minimum Generalized Cross Validation (GCV) and Mean Square Error (MSE). Parametric component in this research is hemoglobin (g/dL) and age (years), body temperature ( ), platelets ( ) as a nonparametric components. The minimum value of GCV is 221,67745153 achieved at the point 14,552; 14,987; and 15,096 knot; MSE value of 199,1032; and the value of coefficient determination is 75,3% obtained from semiparametric regression model linear spline with third point of knots.Keywords: semiparametric regression, spline, knot, Generalized Cross Validation, Dengue Hemorrahagic Fever.
抽象。半parametric回归是一种基于parametric和非parametric组成的回归模型。这项研究使用的回归模型semiparametrik spline纵向数据和案例研究的登革出血热患者()在大学医院萨鲁丁登革热Makassar 2018年1月到3月的时期。从选举中获得最好的回归模型估计节最佳点看到Generalized Cross Validation (GCV)成绩和最低平均值广场(MSE)的错误。parametrik成分的研究这是血红蛋白(g / dL)和年龄(岁)、体温()、血小板()作为最低成绩GCV nonparametrik 221.67745153大小的组件实现点节即14,552;14,987;和15,096;MSE 199.1032大价值;滑动系数和价值大小的决心回归模型中获得的75,3% semiparametrik spline线性回归和三个点节。关键词:semiparametrik spline节,Generalized Cross Validation,登革出血热抽象。Semiparametric regression是个regression模特that includes parametric和参数components in it。regression模特》这个研究是spline semiparametric regression用和登革热Hemorrahagic发烧病人的案例研究(DHF) at University of萨鲁丁Makassar期间医院2018年一月到三月之期。最佳regression estimation模型节最佳selection》是获得来自哪种Generalized Cross Validation (GCV)和最低的意思了广场上的错误(MSE)。Parametric接口在这个研究是血红蛋白(g / dL)和时代(年)、车身温度(),美国platelets () a参数components。GCV之最低价值是221.67745153 achieved at The point 14,552;14,987;与15,096节;MSE 199.1032的价值;和coefficient决心是75,3%价值》获得来自semiparametric regression spline线性模型和第三节之角。安装:semiparametric regression spline节,Generalized Cross Validation,登革热Hemorrahagic发烧。
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