Improvement of the Nonparametric Estimation of Functional Stationary Time Series Using Yeo‐Johnson Transformation with Application to Temperature Curves

Sameera Abdulsalam Othman and Haithem Taha Mohammed Ali

Advances in Mathematical Physics, 2021, vol. 2021, issue 1

Abstract: In this article, Box‐Cox and Yeo‐Johnson transformation models are applied to two time series datasets of monthly temperature averages to improve the forecast ability. An application algorithm was proposed to transform the positive original responses using the first model and the stationary responses using the second model to improve the nonparametric estimation of the functional time series. The Box‐Cox model contributed to improving the results of the nonparametric estimation of the original data, but the results become somewhat confusing after attempting to make the transformed response variable stationary in the mean, while the functional time series predictions were more accurate using the transformed stationary datasets using the Yeo‐Johnson model.

Date: 2021
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https://doi.org/10.1155/2021/6676400

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Persistent link: https://EconPapers.repec.org/RePEc:wly:jnlamp:v:2021:y:2021:i:1:n:6676400

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