Package: RLeafAngle 1.0

RLeafAngle: Estimates, Plots and Evaluates Leaf Angle Distribution Functions, Calculates Extinction Coefficients

Leaf angle distribution is described by a number of functions (e.g. ellipsoidal, Beta and rotated ellipsoidal). The parameters of leaf angle distributions functions are estimated through different empirical relationship. This package includes estimations of parameters of different leaf angle distribution function, plots and evaluates leaf angle distribution functions, calculates extinction coefficients given leaf angle distribution. Reference: Wang(2007)<doi:10.1016/j.agrformet.2006.12.003>.

Authors:Wei-Min Wang <[email protected]>

RLeafAngle_1.0.tar.gz
RLeafAngle_1.0.zip(r-4.5)RLeafAngle_1.0.zip(r-4.4)RLeafAngle_1.0.zip(r-4.3)
RLeafAngle_1.0.tgz(r-4.4-any)RLeafAngle_1.0.tgz(r-4.3-any)
RLeafAngle_1.0.tar.gz(r-4.5-noble)RLeafAngle_1.0.tar.gz(r-4.4-noble)
RLeafAngle_1.0.tgz(r-4.4-emscripten)RLeafAngle_1.0.tgz(r-4.3-emscripten)
RLeafAngle.pdf |RLeafAngle.html✨
RLeafAngle/json (API)

# Install 'RLeafAngle' in R:
install.packages('RLeafAngle', repos = c('https://wangwm2017.r-universe.dev', 'https://cloud.r-project.org'))

Peer review:

Datasets:
  • Falster - Leaf angle distribution measurements provided by D.S. Falster
  • Pisek - Leaf angle distribution measurements provided by Jan Pisek

On CRAN:

This package does not link to any Github/Gitlab/R-forge repository. No issue tracker or development information is available.

1.51 score 32 scripts 100 downloads 29 exports 0 dependencies

Last updated 7 years agofrom:3f7e38c665. Checks:OK: 1 WARNING: 6. Indexed: yes.

TargetResultDate
Doc / VignettesOKNov 03 2024
R-4.5-winWARNINGNov 03 2024
R-4.5-linuxWARNINGNov 03 2024
R-4.4-winWARNINGNov 03 2024
R-4.4-macWARNINGNov 03 2024
R-4.3-winWARNINGNov 03 2024
R-4.3-macWARNINGNov 03 2024

Exports:BetaDiscomputeBetacomputeGcomputeGEllipcomputeLambdacomputeLambdaRcomputeSunlitcomputeTrigellipsoidalDisellipsoidalRDisextremophileDisinterBetainterEllipinterEllipRinterErectophileinterExtremophileinterPlagiophileinterPlanophileinterSphericalinterUniformintervalTrigLADdensityplagiophileDisplanophileDisplotdensityselectClassicsphericalDissysAziDisuniformDis

Dependencies:

Readme and manuals

Help Manual

Help pageTopics
Compute the Beta distribution of leaf zenith angle.BetaDis
Compute the parameter of Beta function given leaf angle distribution mearuements.computeBeta
Compute the mean projection of unit leaf area on the plane perpendicular to beam direction, namely, G parameter.computeG
Compute the G value given lamda (the parameter of ellipsoidal function) and beam direction.computeGEllip
Compute the parameter of ellipsoidal function given leaf angle distribution mearuements.computeLambda
Compute the parameter of rotated-ellipsoidal function given leaf angle distribution mearuements.computeLambdaR
Compute the fraction of sunlit folige given solar position, LAI and G value with the assumption of the symmetric distribution of leaf azimuth angle.computeSunlit
Compute the parameter of Verhoef's leaf angle distribution given leaf angle mearuements.computeTrig
Compute the ellipsoidal distribution of leaf zenith angle.ellipsoidalDis
Compute the rotated ellipsoidal distribution of leaf zenith angle.ellipsoidalRDis
Estimate the parameters of Beta distribution given leaf angle measurements.estBeta
Compute the extremophile distribution of leaf zenith angle.extremophileDis
Leaf angle distribution measurements provided by D.S. FalsterFalster
Compute the fraction leaf area given leaf angle intervals (in degree) and the parameters of Beta function.interBeta
Compute the fraction leaf area given leaf angle intervals (in degree) and the parameters of ellipsoidal function.interEllip
Compute the fraction leaf area for rotated-ellipsoidal function given leaf angle intervals (in degree) and the parameters.interEllipR
Compute the fraction leaf area of Erectophile distribution given leaf angle intervals (in degree).interErectophile
Compute the fraction leaf area of Extremophile distribution given leaf angle intervals (in degree).interExtremophile
Compute the fraction leaf area of Plagiophile distribution given leaf angle intervals (in degree).interPlagiophile
Compute the fraction leaf area of Planophile distribution given leaf angle intervals (in degree).interPlanophile
Compute the fraction leaf area of Spherical function given leaf angle intervals (in degree).interSpherical
Compute the fraction leaf area of Uniform distribution given leaf angle intervals (in degree).interUniform
Compute the fraction leaf area given leaf angle intervals (in degree) and the parameters of Verhoef's leaf angle distribution function.intervalTrig
Retrieve the density of leaf area given leaf angle measurements.LADdensity
Leaf angle distribution measurements provided by Jan PisekPisek
Compute the plagiophile distribution of leaf zenith angle.plagiophileDis
Compute the planophile distribution of leaf zenith angle.planophileDis
Plot the density of leaf area given leaf angle measurements.plotdensity
Retrieve the density of leaf area given leaf angle measurements.selectClassic
Compute the spherical distribution of leaf zenith angle.sphericalDis
Compute the symmetric distribution of leaf azimuth angle.sysAziDis
Compute the uniform distribution of leaf zenith angle.uniformDis