| tounsorted {symmoments} | R Documentation |
Compute an unsorted central moment object from a sorted object
Description
Produces an unsorted central moment object from a sorted object of class "moment".
Unsorted moments are those with exponents not in numeric order, e.g., m312.
Usage
tounsorted(moment,sorted.moment)Arguments
moment |
unsorted moment to obtain moment is in vector form, eg, c(3,1,2) |
sorted.moment |
sorted moment to use in obtaining unsorted moment |
Details
The unsorted moment is obtained by resorting the rows and columns of the sorted moment sucessively.
Value
A object of class 'moment', which is a list with three components:
moment |
the input moment vector |
representation |
a matrix containing the representation in terms of upper-triangular matrices |
coefficients |
the coefficients corresponding to the rows of the representation |
Author(s)
Kem Phillips <kemphillips@comcast.net>
References
K Phillips, Symbolic Computation of the Central Moments of the Multivariate Normal Distribution, Journal of Statistical Software, 2010.
See Also
multmoments
Examples
# obtain moment m312 from m123
tounsorted(c(3,1,2),callmultmoments(c(1,2,3)))