Interpolation of Irregularly and Regularly Spaced Data
c(person("Hiroshi", "Akima", role = c("aut", "cph"),
		     comment = "Fortran code (TOMS 760, 761, 697 and 433)"),
	      person("Albrecht", "Gebhardt", role = c("aut", "cre", "cph"),
                     email = "albrecht.gebhardt@aau.at",
                     comment = "R port (interp* functions), bicubic* functions"),
	      person("Thomas", "Petzold", role = c("ctb", "cph"),
                     comment = "aspline function"),
              person("Martin", "Maechler", email="maechler@stat.math.ethz.ch",
                      role = c("ctb", "cph"), comment = "interp2xyz function + enhancements"),
              person("YYYY Association for Computing Machinery, Inc.",
                      role = c("cph"), comment = "covers code from TOMS 760, 761, 697 and 433")
            )
Several cubic spline interpolation methods of H. Akima for irregular and
  regular gridded data are available through this package, both for the bivariate case
  (irregular data: ACM 761, regular data: ACM 760) and univariate case (ACM 433 and ACM 697).
  Linear interpolation of irregular gridded data is also covered by reusing D. J. Renkas
  triangulation code which is part of Akimas Fortran code. A bilinear interpolator
  for regular grids was also added for comparison with the bicubic interpolator on
  regular grids.
Hiroshi Akima [aut, cph] (Fortran code (TOMS 760, 761, 697 and 433)),
  Albrecht Gebhardt [aut, cre, cph] (R port (interp* functions), bicubic*
    functions),
  Thomas Petzold [ctb, cph] (aspline function),
  Martin Maechler [ctb, cph] (interp2xyz function + enhancements),
  YYYY Association for Computing Machinery, Inc. [cph] (covers code from
    TOMS 760, 761, 697 and 433)