node-red-node-smooth ==================== A Node-RED node that provides several simple smoothing algorithms for incoming data values. These include - Minimum - Maximum - Mean - Standard Deviation - High Pass Smoothing - Low Pass Smoothing Install ------- Run the following command in your Node-RED user directory - typically `~/.node-red` npm install node-red-node-smooth Usage ----- A simple node to provide various functions across several previous values, including max, min, mean, standard deviation, high and low pass filters. Max, Min, Mean and Standard Deviation work over a rolling window, based on a specified number of previous values. 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. If `msg.reset` is received (with any value), all the counters and intermediate values are reset to an initial state. **Note:** This node only operates on **numbers**. Anything else will try to be made into a number and rejected if that fails.