function: Array Downsampling

A low cost function to down sample a array.
specially useful for pattern recognition algorithms.
Release Notes: fixed a oversight in the algo x_x.
Release Notes: added comments
Release Notes: updated algo, there is a inherited gap at the last data slice, were the leftover values are averaged down.

Open-source script

In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.

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