Calculate unbiased pooled estimates of central moments and their powers and products up to specified order.
vector of the same length as
highest order of the estimates to calclulate. Estimates of lower orders will be included.
Pooled estimates up to the 6th order can be calculated. Second and third orders contain estimates of the variance and third central moment, fourth order includes estimates of fourth moment and squared variance (μ^2), fifth order - of fifth moment and a product of second and third moments (μ μ), sixth order - of sixth moment, a product of second and fourth moments (μ μ), squared third moment (μ^2), and cubed variance (μ^3).
A named vector of estimates of central moments and their powers and
products up to
order. The highest order available is 6th. The names
of the elements are
"M2", "M3", "M4", "M5", "M6" for corresponding
"M2M3", "M2M4" for products of the moments (second
and third, second and fourth), and
"M2pow2", "M2pow3", "M3pow2" for
powers of the moments - corresponding to estimates of squared variance,
cubed variance, and squared third moment.
uM for one-sample unbiased estimates.
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