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25 lines
919 B
Markdown
25 lines
919 B
Markdown
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node-red-node-smooth
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====================
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A <a href="http://nodered.org" target="_new">Node-RED</a> node that provides several simple smoothing algorithms for incoming data values.
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Install
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-------
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Run the following command in the root directory of your Node-RED install
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npm install node-red-node-smooth
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Usage
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-----
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A simple node to provide various functions across several previous values, including max, min, mean, high and low pass filters.
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Max, Min and Mean work over a specified number of previous values.
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The High and Low pass filters use a smoothing factor. The higher the number the more the smoothing. E.g. a value of 10 is similar to an α of 0.1. It is analogous to an RC time constant - but there is no time component to this as the code is based on events arriving.
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**Note:** This only operates on **numbers**. Anything else will try to be made into a number and rejected if that fails.
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