Tensor: Pure and Applied Mathematics Journal
Vol 2 No 2 (2021): Tensor : Pure and Applied Mathematics Journal

Forecasting the Ambon City Consumer Price Index Using Arima Box-Jenkins

Jefry Esna T. Radjabaycole (Jurusan Matematika FMIPA Universitas Pattimura)
Ronald John Djami (Unknown)
Gabriella Haumahu (Unknown)

Article Info

Publish Date
25 Nov 2021

Abstract

The Consumer Price Index is an index number that measures the average price of goods and services consumed by households. The index number is the price comparison in a certain month against the previous month, in which case the price in the previous month is the price in the base year in the CPI calculation. CPI is time series data, so CPI data in the next period can be known by forecasting through time series analysis. Arima is a technique for finding the most suitable pattern from a group of data (curve fitting). Based on the results of the analysis, the best ARIMA model used in forecasting CPI in Ambon city for the period January 2007 to December 2020 is the ARIMA model (1,1,1), namely 1 = 0.9000 and 1 = 0.9933.

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Journal Info
Tensor: Pure and Applied Mathematics Journal
Website

Abbrev

tensor

Publisher

Universitas Pattimura

Subject

Computer Science & IT Mathematics

Description

Tensor: Pure and Applied Mathematics Journal is an international academic open access journal that gains a foothold in the field of mathematics and its applications which is issued twice a year. The focus is to publish original research and review articles on all aspects of both pure and applied ...