AUTO_PSF                AUTO_PSF() takes input data and autogenerate
                        optimum Window size (W) and cluster size (K)
data_denorm             Denormalize tha data
data_norm               Normalize the data
mae                     Mean Absolute Error Calculation
optimum_k               To determine the Optimum value of Cluster size
                        (K) based on Average silhouette method
optimum_w               Finds optimum value of Window Size (w)
plot_PSF                Generate the plot for Forecasted Values
pred_for_w              It predict the values for given data, Window
                        size (W) and Cluster size (k).
pred_for_w_plot         It predict the values for given data, Window
                        size (W) and Cluster size (k).
rmse                    Root Mean Square Error Calculation
