Fast moving average

A fast implementation of the moving average filter for long kernels.

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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.

Citar como

Christian Kothe (2026). Fast moving average (https://la.mathworks.com/matlabcentral/fileexchange/34567-fast-moving-average), MATLAB Central File Exchange. Recuperado .

Agradecimientos

Inspiración para: downsample_ts

Categorías

Más información sobre Signal Processing Toolbox en Help Center y MATLAB Answers.

Información general

Compatibilidad con la versión de MATLAB

  • Compatible con cualquier versión

Compatibilidad con las plataformas

  • Windows
  • macOS
  • Linux
Versión Publicado Notas de la versión Action
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