cmoment

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 — sum of array elements
• median — median (row median, column median,...) of vector/matrix/array entries
• stdev — standard deviation (row orcolumn-wise) of vector/matrix entries
• mean — mean (row mean, column mean) of vector/matrix entries
• 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 — standard deviation (row orcolumn-wise) of vector/matrix entries
• stdevf — standard deviation
• variance — variance (and mean) of a vector or matrix (or hypermatrix) of real or complex numbers
• variancef — variance (and mean) of a vector or matrix of frequency-weighted real or complex numbers
• nanstdev — standard deviation (ignoring the NANs).