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## Re: Taking a mean of a fixed length number of points

**From**: |
Francesco Potortì |

**Subject**: |
Re: Taking a mean of a fixed length number of points |

**Date**: |
Tue, 03 Dec 2019 10:55:21 +0100 |

>*I need to calculate the columnar average of each k points out of an array of*
>*x(n,m) elements, resulting in a new array x_avg (floor (n/k) , m) elements.*
>
>*I use:*
>* tmp = reshape(x,k,[],m); (1)*
>* x_avg = reshape(mean(tmp),[],m); (2)*
I think that what you use is the simpler and most efficient way. Rather
than resorting to 3-d arrays, I'd go columnar, by removing the fourth
argument in (1), which is cleaner to my eyes.
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**Re: Taking a mean of a fixed length number of points**,
*Francesco Potortì* **<=**