Regresi Komponen Utama dalam Mengatasi Multikolinieritas pada Faktor-Faktor yang Mempengaruhi Inflasi di Indonesia

Ningrum, Salsabila Hadi Putri
Hisan, Khairatun
Ramdhani, Triana Putri
Luzianawati, Luzianawati
Zindawi, M. Daffa Rizki
Harsyiah, Lisa

IJASDS: Indonesian Journal of Applied Statistics and Data Science
Vol. 2 No. 1 (2025): Mei

Inflation is a significant concern for a developing country like Indonesia. To effectively anticipate inflationary trends, it is essential to conduct statistical analysis to determine what factors can influence inflation. This study utilized Principal Component Regression (PCR) to address multicollinearity in the regression model linking inflation to various factors. The results revealed that transportation, food, electricity and household fuel factors positively correlate with inflation, while health, education and clothing show negative correlations. However, the resulting regression model proved to be inadequate, as evidenced by a very low R-square value. This highlights the necessity for further refinement of the model to provide better information in the context of inflation management in Indonesia.