Fast moving average

Versione 1.2.0.0 (2,29 KB) da Christian Kothe
A fast implementation of the moving average filter for long kernels.
5.0
(6)
1K download
Aggiornato 19 gen 2012

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In terms of behavior, this is an alternative to filter() for a moving-average kernel. The running time does not grow with filter length beyond N=500.

The code uses a variant of the cumsum-trick, although not the "garden variety" but in a way that does not run into numerical issues for long data arrays.

The function is suitable for incremental (online) processing.

Cita come

Christian Kothe (2024). Fast moving average (https://www.mathworks.com/matlabcentral/fileexchange/34567-fast-moving-average), MATLAB Central File Exchange. Recuperato .

Compatibilità della release di MATLAB
Creato con R2011b
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Scopri di più su Signal Processing Toolbox in Help Center e MATLAB Answers
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Ispirato: downsample_ts

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Versione Pubblicato Note della release
1.2.0.0

The N<500 case is now correctly implemented... (had a dumb error before)
1.1.0.0

Fixed an issue pointed out by Jan Simon (failed to determine along which dimension to filter when the signal was a scalar) and updated the docs.
1.0.0.0