akima: Interpolation of Irregularly and Regularly Spaced Data

Share:

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 526 and ACM 761, regular data: ACM 433) and univariate case (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.

Author
Hiroshi Akima [aut, cph] (Fortran code (TOMS 526, 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 526, 761, 697 and 433)
Date of publication
2015-09-15 15:15:20
Maintainer
Albrecht Gebhardt <albrecht.gebhardt@aau.at>
License
ACM | file LICENSE
Version
0.5-12

View on CRAN

Man pages

akima
Waveform Distortion Data for Bivariate Interpolation
akima760
Sample data from Akima's Bicubic Spline Interpolation code...
aspline
Univariate Akima interpolation
bicubic
Bivariate Interpolation for Data on a Rectangular grid
bicubic.grid
Bivariate Interpolation for Data on a Rectangular grid
interp
Gridded Bivariate Interpolation for Irregular Data
interp2xyz
From interp() Result, Produce 3-column Matrix
interpp
Pointwise Bivariate Interpolation for Irregular Data

Files in this package

akima
akima/configure.ac
akima/src
akima/src/idsfft.f
akima/src/idptli.f
akima/src/idgrid.f
akima/src/toms760.f
akima/src/idtang.f
akima/src/tripack.f
akima/src/idptip.f
akima/src/akima.new.f
akima/src/idcldp.f
akima/src/Makevars.in
akima/src/idxchg.f
akima/src/idpdrv.f
akima/src/init.c
akima/src/akima697.f
akima/src/idlctn.f
akima/src/akima433.f
akima/src/akima.h
akima/src/idbvip.f
akima/NAMESPACE
akima/data
akima/data/akima760.rda
akima/data/akima.rda
akima/R
akima/R/bicubic.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/MD5
akima/README
akima/DESCRIPTION
akima/configure
akima/man
akima/man/aspline.Rd
akima/man/bicubic.Rd
akima/man/interpp.Rd
akima/man/interp2xyz.Rd
akima/man/akima.Rd
akima/man/bicubic.grid.Rd
akima/man/interp.Rd
akima/man/akima760.Rd
akima/cleanup
akima/tools
akima/tools/acinclude.m4
akima/LICENSE