siplab - Spatial Individual-Plant Modelling
A platform for computing competition indices and experimenting with spatially explicit individual-based vegetation models.
Last updated 3 years ago
plant-ecologyplant-growthsimulation
4.97 score 3 stars 31 scripts 345 downloadsresde - Estimation in Reducible Stochastic Differential Equations
Maximum likelihood estimation for univariate reducible stochastic differential equation models. Discrete, possibly noisy observations, not necessarily evenly spaced in time. Can fit multiple individuals/units with global and local parameters, by fixed-effects or mixed-effects methods. Ref.: Garcia, O. (2019) "Estimating reducible stochastic differential equations by conversion to a least-squares problem", Computational Statistics 34(1): 23-46, <doi:10.1007/s00180-018-0837-4>.
Last updated 2 years ago
estimationstochastic-differential-equations
4.00 score 2 stars 2 scripts 193 downloadsdyntaper - Dynamic Stem Profile Models, AKA Tree Taper Equations
Performs calculations with tree taper (or stem profile) equations, including model fitting. The package implements the methods from García, O. (2015) "Dynamic modelling of tree form" <http://mcfns.net/index.php/Journal/article/view/MCFNS7.1_2>. The models are parsimonious, describe well the tree bole shape over its full length, and are consistent with wood formation mechanisms through time.
Last updated 3 years ago
forestrytrees
4.00 score 2 stars 2 scripts 220 downloads