--- title: Gaussian Filter slug: manufacturing-connect-edge-v2/gaussian-filter docTags: createdAt: 2024-08-08T21:50:04.081Z --- The **Gaussian Filter **processor is a simple Gaussian digital filter. # Gaussian Filter Overview - First, the mean, standard deviation and variance of a window of values is calculated. - Coefficient is calculated by the formula 1/ \{squareRoot(2 \* PI) \* deviations} - Exponential Part is calculated by the formula exp\{ -(1/2) \* (current - mean)^2 / (dev)^2 } - Multiplying those values gives the Gaussian Function, and then filtered value is obtained. - The **timer interval** parameter is useful if the connected input tag is currently not polling, but you still want this KPI to publish a value every few seconds, defined by the aforementioned timer. - If you know your input is going to publish at the expected interval, it is better to disable this timer by entering **0** in the field. # Gaussian Filter Parameters | **Parameters** | **Details** | | ------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Window Size | This parameter specifies the window in which the Gaussian filter calculates its values. The window size represents the number of seconds over which the Gaussian filter operates.
| | Timer Interval | Timer in milliseconds. If no event, use this timer to keep displaying the output continually. Enter zero to disable. | | Pass Through Value | The Pass Through Value parameter enables you to specify how anomalous data should be handled. | ![](https://api.archbee.com/api/optimize/SSUUxKZUk9bFTEPNn_6Zo/bpn_Fe-FEFJQLCNNaomV6_image.png "Gaussian Filter parameters") :::hint{type="info"} **Note: **When creating an analytics flow with *Gaussian Filter *processor, refer the [Use the Gaussian Filter Function](docId:_IyTBEq9uQZiSlvxxP5fh) guide for more details. :::