coefficientMatrixSpheroids: Calculate coefficients (spheroids)
Description
Calculate coefficients of discretized integral equationUsage
coefficientMatrixSpheroids(breaks, stype = c("prolate", "oblate"),
check = TRUE, nCores = getOption("par.unfoldr", 1))Arguments
breaks
list of bin vectors
stype
either prolate or oblate
check
logical, whether to run some input checks
nCores
number of cores used to calculate the coefficients
Details
In order to apply the EM algorithm to the stereological
unfolding procedure for the joint size-shape-orientation distribution
one first has to calculate the coefficients of the discretized integral
equation. This step is the most time consuming part of unfolding
the parameters and therefore has been separated in its own function.
Further, the number of classes for size, shape and orientation do not
need to be equal, whereas the same class limits are used for binning spatial and planar values.
This might be changed in future releases.
Using multiple cpu cores is controlled by either setting the option 'par.unfoldr' in the global
R environment or passing the number of cores nCores directly.