Indonesian Journal of Applied Statistics
Vol 4, No 2 (2021)

Model Variasi Kalender pada Regresi Runtun Waktu untuk Peramalan Jumlah Pengunjung Grojogan Sewu

Etik Zukhronah (Universitas Sebelas Maret)
Winita Sulandari (Universitas Sebelas Maret)
Isnandar Slamet (Universitas Sebelas Maret)
Sugiyanto Sugiyanto (Universitas Sebelas Maret)
Irwan Susanto (Universitas Sebelas Maret)

Article Info

Publish Date
29 Nov 2021

Abstract

Abstract. Grojogan Sewu visitors experience a significant increase during school holidays, year-end holidays, and also Eid al-Fitr holidays. The determination of Eid Al-Fitr uses the Hijriyah calendar so that the occurrence of Eid al-Fitr will progress 10 days when viewed from the Gregorian calendar, this causes calendar variations. The objective of this paper is to apply a calendar variation model based on time series regression and SARIMA models for forecasting the number of visitors in Grojogan Sewu. The data are Grojogan Sewu visitors from January 2009 until December 2019. The results show that time series regression with calendar variation yields a better forecast compared to the SARIMA model. It can be seen from the value of  root mean square error (RMSE) out-sample of time series regression with calendar variation is less than of SARIMA model.Keywords: Calendar variation, time series regression, SARIMA, Grojogan Sewu

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Journal Info
Indonesian Journal of Applied Statistics
Website

Abbrev

ijas

Publisher

Universitas Sebelas Maret

Subject

Agriculture, Biological Sciences & Forestry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Environmental Science

Description

Indonesian Journal of Applied Statistics (IJAS) is a journal published by Study Program of Statistics, Universitas Sebelas Maret, Surakarta, Indonesia. This journal is published twice every year, in May and November. The editors receive scientific papers on the results of research, scientific ...