Programmer Guide/Command Reference/EVAL/wsum: Difference between revisions
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Revision as of 17:31, 18 November 2010
Contents
wsum
A weighted summation.
Usage:
wsum(xv,yv,w,s,r)
Parameters:
- xv
- A scalar vector.
- yv
- A function vector (
yi=f(xi)) with the same length as x.
- w
- The weighting function: a rectangle (
0), a triangle (1), a Hanning window (2) or a Hamming window (3).
- s
- Normalize the results (
0|1). If1-> scale with "1 / sum-of-weights".
- r
- The summation extent. r can be one, two or three arguments (see sum for details). Note, however, that the extent is given in values on the x-scale, not in indices.
Result:
A scalar or vector depending on the parameters.
