RawMoments¶
streaming mode | Statistics category
Inputs¶
array
(vector_real) - the input array
Outputs¶
rawMoments
(vector_real) - the (raw) moments of the input array
Parameters¶
range
(real ∈ (0, ∞), default = 22050) :the range of the input array, used for normalizing the results
Description¶
This algorithm computes the first 5 raw moments of an array. The output array is of size 6 because the zero-ith moment is used for padding so that the first moment corresponds to index 1.
- Note:
This algorithm has a range parameter, which usually represents a frequency (results will range from 0 to range). For a spectral centroid, the range should be equal to samplerate / 2. For an audio centroid, the frequency range should be equal to (audio_size-1) / samplerate.
An exception is thrown if the input array’s size is smaller than 2.
- References:
[1] Raw Moment – from Wolfram MathWorld, http://mathworld.wolfram.com/RawMoment.html
Source code¶
See also¶
RawMoments (standard)