Use the drop-down menu to select the method used to compute the bandwidth for density smoothing.Methods include: the Sheather-Jones Plug In (SJPI), the Simple Normal Reference (SNR), the Silverman Rule of Thumb (SROT), and the Oversmoothed method (OS).Note: Selecting SJPI can provide more refined results than the other methods, but this method is more computationally intensive.Refer to the SAS/STAT PROC KDE documentation for more details.