Parameters of simple allometric model are evaluated to derive allometric components of organisms from longitudinal variables.
1 
cs 

mp 

un 
NULL, or bidimensional 
The simple allometric model has the form:
a * cs ^ b, with a,b being constants in mp
,
and cs being a sequence of mesures of an organic
component (e.g. the treeradial increments).
Different allometric variables can be computed;
for the case of treeradial increments, mp =
c(1,1)
produces diameters, and mp = c(0.25
* pi,2)
computes basal areas. The argument
mp
can have more than two parameters:
c(a1,b1,a2,b2, ..., an,bn)
, with n
being the number of times that allometric model
will be recursively implemented. Such recursive
evaluation is useful to derive variables which
depend on other allometric covariables: i.e
allometric model would be implemented twice to
recursively compute diameters and tree biomasses
from treering widths. A column of increments of
cs (x) is also computed for further inpackage
modeling of relative organic growth from
cumulative organic growth (see
tdForm
function).
data.frame
of computed allometricorganic components and
their correspondent relative increments.
Wilson Lara <wilarhen@gmail.com>, Felipe Bravo <fbravo@pvs.uva.es>
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