akima: Interpolation of Irregularly and Regularly Spaced Data

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.

AuthorHiroshi 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)
Date of publication2016-12-20 01:40:25
MaintainerAlbrecht Gebhardt <albrecht.gebhardt@aau.at>
LicenseACM | file LICENSE
Version0.6-2

View on CRAN

Files

akima
akima/configure.ac
akima/src
akima/src/idsfft.f
akima/src/idptli.f
akima/src/idgrid.f
akima/src/idtang.f
akima/src/tripack.f
akima/src/idptip.f
akima/src/idcldp.f
akima/src/Makevars.in
akima/src/idxchg.f
akima/src/idpdrv.f
akima/src/akima761.f
akima/src/bilinear.f
akima/src/init.c
akima/src/akima697.f
akima/src/idlctn.f
akima/src/akima760.f
akima/src/akima433.f
akima/src/akima.h
akima/src/idbvip.f
akima/NAMESPACE
akima/data
akima/data/akima760.rda
akima/data/franke.rda
akima/data/akima.rda
akima/R
akima/R/bicubic.R akima/R/bilinear.R akima/R/interpp.new.R akima/R/interp.old.R akima/R/interpp.R akima/R/aspline.R akima/R/interp.new.R akima/R/interp2xyz.R akima/R/interpp.old.R akima/R/interp.R akima/R/franke.R
akima/MD5
akima/README
akima/DESCRIPTION
akima/configure
akima/ChangeLog
akima/man
akima/man/aspline.Rd akima/man/interp.old.Rd akima/man/bilinear.Rd akima/man/franke.data.Rd akima/man/bicubic.Rd akima/man/interpp.Rd akima/man/interp2xyz.Rd akima/man/interpp.old.Rd akima/man/akima.Rd akima/man/bilinear.grid.Rd akima/man/bicubic.grid.Rd akima/man/interp.Rd akima/man/akima760.Rd
akima/cleanup
akima/tools
akima/tools/acinclude.m4
akima/LICENSE

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