sad {meteR} | R Documentation |
sad.mete
returns the species abundance distribution
predicted by METE (\Phi(n)
)
sad(x)
## S3 method for class 'meteESF'
sad(x)
x |
an object of class mete. |
See Examples.
An object of class meteDist
. The object contains a list with the following elements.
The data used to construct the prediction
density funciton
cumulative density function
quantile funtion
random number generator
Vector of Lagrange multipliers
State variables used to constrain entropy maximization
Specifies the type of distribution is 'sad'
Andy Rominger <ajrominger@gmail.com>, Cory Merow
Harte, J. 2011. Maximum entropy and ecology: a theory of abundance, distribution, and energetics. Oxford University Press.
metePhi
data(arth)
esf1 <- meteESF(spp=arth$spp,
abund=arth$count,
power=arth$mass^(.75),
minE=min(arth$mass^(.75)))
sad1 <- sad(esf1)
sad1
sad1$r(20)
sad1$q(seq(0,1,length=10))