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Time Series Modeling of Guinea Fowls Production in Kenya Using the ARIMA and ARFIMA Models

机译:使用Arima和Arfima模型的肯尼亚几内亚禽类生产的时间序列建模

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Commercial farming of Guinea Fowls is at its infant stages and is generating a lot of interest for farmers in Kenya. This, coupled with an increased demand for poultry products in the Kenyan market in the recent past, calls for the rearing of the guinea fowls which are birds reared for meat and partly for eggs. In order to have an efficient production of poultry products for this type of poultry farming, there is need for an efficient modeling using sound statistical methodologies. It's in this regard that the study modeled Guinea Fowl production in Kenya using the Univariate Auto-Regressive Integrated Moving Average (ARIMA) and the Auto-Regressive Fractional Integrated Moving Average (ARFIMA) models. Yearly guinea fowl production data for the period of 2010 to 2019 obtained from Food and Agricultural Organization (FAO-Kenya) was used in the study in which the Augmented Dickey Fuller (ADF) test was used to check for stationarity while the Hurst Exponent was used to test the long-memory property of the series. The ARIMA and ARFIMA models gave a better fit to the data and were used to forecast Guinea Fowl Weights. Fitted model forecast were evaluated via the Random Mean Squared Error (RMSE) in which the ARFIMA model was found to give a better forecast of the Guinea Fowl weights compared to the ARIMA model.
机译:几内亚家禽的商业养殖处于婴儿阶段,对肯尼亚的农民产生了很多兴趣。这是最近在肯尼亚市场在肯尼亚市场的需求增加的需求,呼吁饲养几九家禽,这些家禽是饲养肉类的鸟类,部分用于鸡蛋。为了有效地生产这种类型的家禽养殖生产的家禽产品,需要使用声音统计方法进行有效的建模。在这方面,研究模拟了肯尼亚的几内亚家禽生产,使用单变量自动回归综合移动平均(Arima)和自动回归分数综合移动平均(Arfima)模型。从粮食和农业组织(粮农组织 - 肯尼亚)获得的2010年至2019年的每年几内亚Fowl生产数据在使用增强的Dickey Fuller(ADF)测试时用于检查实向性的研究测试该系列的长内存属性。 Arima和Arfima模型更适合数据,用于预测豚鼠的重量。通过随机平均平方误差(RMSE)评估拟合模型预测,其中发现ARFIMA模型与ARIMA模型相比,占状Fowl重量更好地预测了几内亚禽重量。

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