cmoment
central moments of all orders
Syntax
mom=cmoment(x,ord) mom=cmoment(x,ord,'r') or mom=cmoment(x,ord,1) mom=cmoment(x,ord,'c') or mom=cmoment(x,ord,2)
Arguments
- x
real or complex vector or matrix
- ord
positive integer
Description
cmoment(x,ord) is the central moment or order ord of
the elements of x.
If a third argument of type string 'r' (or
1) or 'c' (or 2) is used, we get in the
first case, a row vector mom such that
mom(j) contains the central moment of order
ord of the j column of
x. cmoment(x,ord,'c') is used in the same way
for the central moments in the rows.
References
Wonacott, T.H. & Wonacott, R.J.; Introductory Statistics, J.Wiley & Sons, 1990.
Examples
x=[0.2113249 0.0002211 0.6653811; 0.7560439 0.3303271 0.6283918] mom=cmoment(x,3) mom=cmoment(x,2,'r') mom=cmoment(x,3,'c')
See also
- sum — somme des éléments d'un tableau.
- median — médiane des termes d'une matrice
- stdev — écart-type des termes d'une matrice
- mean — mean of all values, or means along a given dimension
- meanf — weighted mean of a vector or a matrix
- moment — non central moments of all orders
- nanmean — mean (ignoring Nan's)
- nanmeanf — mean (ignoring Nan's) with a given frequency.
- stdev — écart-type des termes d'une matrice
- stdevf — standard deviation
- variance — variance d'un vecteur, matrice (voire hypermatrice) de nombres réels ou complexes
- variancef — variance (et moyenne) d'un vecteur ou d'une matrice réelle ou complexe de nombres pondérés en fréquence
- nanstdev — standard deviation (ignoring the NANs).
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