Code and data sets for the methods discussed in  Jeffrey S. Simonoff and Chih-Ling Tsai, "Semiparametric and Additive Model Selection Using an Improved AIC Criterion," Journal of Computational and Graphical Statistics, 8, to appear (1999).

After downloading the S-PLUS dump file aiccsemi.dmp, restore it using the data.restore command (the foreign package must be loaded first if R is being used). The following functions and data sets will be restored:

  • aicc.am2
  • aicc.am3
  • aicc.spline
  • crit.am2
  • crit.am3
  • crit.expo1
  • crit.expo2
  • crit.expo3
  • crit.linear
  • crit.semi1
  • crit.semi2
  • crit.semi3
  • crit.spline
  • goftest1
  • goftest2
  • goftest3
  • mattrace
  • cars93.dat
  • collrank.dat
  • salinity.dat

    • The file is available here.

    Click here for related code for categorical data smoothing and density estimation and nonparametric regression.

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