This article is intended to compare the operation of the electric consumption forecasting model in the country, Thailand. By the way, this article is gathered, including linear regression (Linear Multiple Regression MLR) multiples artificial neural network (ANN Artificial Neural Network) theory of grey (GREY MODEL GM), the Seasonal Autoregressive Integrated Moving Average (SARIMA and the ARIMA (Autoregressive Integrated Moving Average). It also has a summary of the advantages and constraints, including the forecast of each model, and compare the performance of a method in research. I found that the best model for the forecasting must be appropriate for the analysis of the results of the analyses which require less error and what is indispensable is to be given an independent variable, and each of the suits.
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