This article presents basic properties of Buys-Ballot estimates for seasonal variances for the mixed, multiplicative and additive models in time series. The emphasis is to characterize the basic properties of seasonal variances for purpose of choice of model. In this article, the...
Open access
Research Article10.9734/ajarr/2023/v17i2466
This article provides a general overview of the decomposition with the mixed model. The decomposition of such series into various components requires a method that can adequately estimate and investigate the trend parameters, seasonal indices and residual component of the series....
Open access
Research Article10.9734/ajarr/2023/v17i2465
In this study, we consider the effect of seasonal averages and seasonal standard deviations on Buys-Ballot estimates of time series components in the presence of missing values. The emphasis is to compare seasonal averages with seasonal standard deviations in the presence and abs...
Open access
Research Article10.9734/ajarr/2022/v16i930501
The purpose of this study is to present the linear trend cycle component with the emphasis on the choice between mixed and multiplication models in time series analysis. Most of the existing studies have adequately dwelt more on choice of model between additive and multiplicative...
Open access
Research Article10.9734/ajarr/2020/v12i430295
This study presents the Buys-Ballot estimation procedure of row and seasonal variances in time series decomposition when trend component of time series is linear. Therefore, the main objective of this study is to obtain the Buys-Ballot estimates of row and seasonal variances for...
Open access
Research Article10.9734/ajarr/2020/v10i330245