optimal.prob | R Documentation |
Returns a maximum likelihood estimate for the fundamental biodiversity
number \theta
(function optimal.theta()
) or the
probability of mutation (function optimal.prob()
) and optionally
return information about the likely error
optimal.prob(x, interval=NULL, N=NULL, like=NULL, ...)
optimal.theta(x, interval=NULL, N=NULL, like=NULL, ...)
x |
Ecosystem vector or species count table |
interval |
Bracketing interval for probability of mutation to be
passed to the optimization routine (here |
N |
Integer; the number of parametric resampled estimates to
give. Default of |
like |
Units of likelihood to calculate credible interval. Edwards recommends using 2 |
... |
Further arguments passed to |
The fundamental biodiversity parameter \theta
is
2\nu J
, where \nu
is the probability of
mutation (ie, as estimated by optimal.prob()
), and J
is
the size of the ecosystem.
For the general case of dispersal limitation, see functions
etienne()
and optimal.params()
.
Robin K. S. Hankin
etienne
,optimal.params.sloss
,optimal.params.gst
data(butterflies)
optimal.prob(butterflies)
optimal.theta(butterflies)
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