Research Article

An Optimized Forecasting Approach Based on Grey Theory and Cuckoo Search Algorithm: A Case Study for Electricity Consumption in New South Wales

Figure 7

The frequency diagram and box plot for the GM, IAGM, CSGM, and ARIMA models. (a) The frequency diagram of four forecasting models. The interval on the -axis is the range of error. (b) The box plot of four forecasting models. Box plots are a way of graphically depicting groups of numerical data through their quartiles. Whiskers from the box indicate variability outside the upper and lower quartiles. Outliers are plotted in red circles. (c) A detailed graphic presentation of a box plot. The central mark is the median, the edges of the box are the lower and upper quartiles, the whiskers extend to the most extreme data points not considering outliers, and outliers are plotted individually.
183095.fig.007a
(a)
183095.fig.007b
(b)
183095.fig.007c
(c)