R语言 不规则数据的线性或三次样条插值.pdf

Package‘akima’

September19,2011

Version0.5-4

Date2009-06-10

TitleInterpolationofirregularlyspacedata

uthorFortrancodebyH.kimaRportbylbrechtGebhardt

albrecht.gebhardt@uni-klu.ac.atasplinefunctionbyThomas

Petzoldtpetzoldt@rcs.urz.tu-dresden.deenhancementsan

correctionsbyMartinMaechlermaechler@stat.math.ethz.ch

MaintainerlbrechtGebhardtalbrecht.gebhardt@uni-klu.ac.at

DescriptionLinearorcubicsplineinterpolationforirregulargriedata

LicensefileLICENSE

RepositoryCRN

Date/Publication2009-11-0413:09:46

Rtopicsdocumented:

akima............................................2

aspline............................................3

interp............................................5

interpp............................................8

Index11

1

2akima

akimaWaveformDistortionDataforBivariateInterpolation

Description

akimaisalistwithcomponentsx,yandzwhichrepresentsasmoothsurfaceofzvaluesatselected

pointsirregularlydistributedinthex-yplane.

Thedatawastakenfromastudyofwaveformdistortioninelectronicircuits,describedin:Hi-

roshikima,MethodofBivariateInterpolationandSmoothSurfaceFittingBasedonLocal

Procedures,CCM,Vol.17,No.1,January1974,pp.18-20.

References

Hiroshikima,MethodofBivariateInterpolationandSmoothSurfaceFittingforIrregularly

DistributedDataPoints,CMTransactionsonMathematicalSoftware,Vol.4,No.2,June1978,

pp.148-159.