center [analysis]
CENTER removes the mean

[z,mu] = center(x,DIM,W)
removes mean x along dimension DIM

x	input data
DIM	dimension
1: column
2: row
default or []: first DIMENSION, with more than 1 element
W	weights to computed weighted mean (default: [], all weights = 1)
numel(W) must be equal to size(x,DIM)

features:
- can deal with NaN's (missing values)
- weighting of data
- dimension argument
- compatible to Matlab and Octave

see also: SUMSKIPNAN, MEAN, STD, DETREND, ZSCORE

REFERENCE(S):