HARMMEAN calculates the harmonic mean of data elements.
The harmonic mean is the inverse of the mean of the inverse elements.
y = harmmean(x [,DIM [,W]]) is the same as
y = mean(x,'H' [,DIM [,W]])
DIM dimension
1 STD of columns
2 STD of rows
default or []: first DIMENSION, with more than 1 element
W weights to compute weighted mean (default: [])
if W=[], all weights are 1.
number of elements in W must match size(x,DIM)
features:
- can deal with NaN's (missing values)
- weighting of data
- dimension argument also in Octave
- compatible to Matlab and Octave
see also: SUMSKIPNAN, MEAN, GEOMEAN