4.60 sddskde2d

• description:
  sddskde2d performs two-dimensional kernel density estimation (KDE) on two columns of an SDDS file. It creates a regular grid of points and computes a Gaussian KDE using Silverman’s rule of thumb for bandwidth selection. The results are written to a new SDDS file containing the original column names and an additional PDF column giving the estimated probability density.
• examples:

  sddskde2d input.sdds output.sdds -column=x,y
  sddskde2d data.sdds kde.sdds -column=x,y -samescales -margin=0.1

• synopsis:

  sddskde2d [<inputfile>] [<outputfile>] [-pipe=[input][,output]]  
    -column=<column1,column2> [-samescales] [-margin=<value>]

• author: Yipeng Sun, M. Borland, R. Soliday, ANL/APS.