Description Usage Arguments Details Value Author(s) References See Also Examples
Creates a leaf angle distribution object. Other functions in the LeafAngle package use this type of object quite conveniently. Nearly all distributions summarized in Wang et al. (2007) are implemented.
1 | angledist(distribution, distpars = NA)
|
distribution |
One of the distributions. Currently included are 'ellipsoid', 'rotatedell', 'twoparbeta', 'spherical', 'planophile', 'extremophile', 'erectophile', 'uniform', and 'plagiophile'. |
distpars |
A vector of parameters for the distribution. See Details. |
Only three of the distributions take a parameter, these are 'ellipsoid' and 'rotatedell', and 'twoparbeta'. For the first two, the parameter X needs to be provided, for the 'twoparbeta' the parameters alphamean and tvar (see Wang et al. 2007).
An object of class AngleDist
. Simply a list of components, in this useage only two are set:
distribution and distpars. Other components are set when fitting a distribution to data, see fitdistribution
.
Remko Duursma
Wang W.M., Li Z.L. & Su H.B. (2007). Comparison of leaf angle distribution functions: Effects on extinction coefficient and fraction of sunlit foliage. Agricultural and Forest Meteorology, 143, 106-122.
fitdistribution
, fitalldistributions
1 2 |
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