@racksync/node-red-contrib-moving-average/flows/moving-average.json

Computes the moving average of incoming message payloads using a window size defined.

{
    "id": "3e85e6a5f3bc71b9",
    "type": "subflow",
    "name": "Moving Average",
    "info": "Computes the moving average of incoming message payloads using a window size defined.",
    "category": "RACKSYNC",
    "id": "637727819e8b21c6",
    "type": "subflow",
    "name": "Moving Average",
    "info": "This script computes the moving average of incoming message payloads using a window size defined. It stores the recent values up to define size in context and updates the message payload with the computed average.",
    "category": "RACKSYNC",
    "in": [
        {
            "x": 320,
            "y": 200,
            "wires": [
                {
                    "id": "745e5df815da0cdd"
                },
                {
                    "id": "6d2bc2dd8e4c1fa2"
                }
            ]
        }
    ],
    "out": [
        {
            "x": 740,
            "y": 120,
            "wires": [
                {
                    "id": "745e5df815da0cdd",
                    "port": 0
                }
            ]
        },
        {
            "x": 710,
            "y": 320,
            "wires": [
                {
                    "id": "6d2bc2dd8e4c1fa2",
                    "port": 0
                }
            ]
        }
    ],
    "env": [
        {
            "name": "SIZE",
            "type": "num",
            "value": "20",
            "ui": {
                "icon": "font-awesome/fa-line-chart",
                "label": {
                    "en-US": "Size"
                },
                "type": "input",
                "opts": {
                    "types": [
                        "num"
                    ]
                }
            }
        }
    ],
    "meta": {
        "module": "node-red-contrib-moving-average",
        "version": "0.0.5",
        "author": "racksync <jack@racksync.com>",
        "desc": "Computes the moving average of incoming message payloads using a window size defined.",
        "keywords": "Moving Average, Node-RED, Filter, RACKSYNC",
        "license": "MIT"
    },
    "color": "#befc03",
    "inputLabels": [
        "Input Payload"
    ],
    "outputLabels": [
        "Computed Data",
        "Size"
    ],
    "icon": "font-awesome/fa-ellipsis-h",
    "status": {
        "x": 420,
        "y": 120,
        "wires": [
            {
                "id": "637727819e8b21c6",
                "port": 0
            }
        ]
    },
  

"flow":[

    {
        "id": "745e5df815da0cdd",
        "type": "function",
        "z": "637727819e8b21c6",
        "name": "moving average functions",
        "func": "let size = env.get(\"SIZE\");\n\nconst MAX_SIZE = size;  // We want the moving average of the last 30 messages\n\n// Get the existing values or initialize an empty array if it doesn't exist yet\nlet values = context.get('values') || [];\n\n// Push the new value onto the array\nvalues.push(msg.payload);\n\n// If we have more than MAX_SIZE values, remove the oldest value\nwhile (values.length > MAX_SIZE) {\n    values.shift();\n}\n\n// Compute the moving average\nlet sum = values.reduce((acc, val) => acc + val, 0);\nlet average = sum / values.length;\n\n// Store the updated values array for future use\ncontext.set('values', values);\n\nmsg.payload = average;  // Send the average as the new payload\nreturn msg;\n",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 510,
        "y": 200,
        "wires": [
            []
        ]
    },
    {
        "id": "6d2bc2dd8e4c1fa2",
        "type": "function",
        "z": "637727819e8b21c6",
        "name": "size debug",
        "func": "let size = env.get(\"SIZE\");\n\n\nmsg.payload = { \"Size\": size };\n\nreturn msg;",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 470,
        "y": 260,
        "wires": [
            []
        ]
    },
    {
        "id": "63337b400338d9c2",
        "type": "subflow:637727819e8b21c6",
        "z": "8e07a14948ef83fa",
        "name": "",
        "env": [
            {
                "name": "SIZE",
                "value": "35.6",
                "type": "num"
            }
        ],
        "x": 660,
        "y": 360,
        "wires": [
            [
                "f8741352f0fd3428"
            ],
            [
                "bf408eca6eb4a132"
            ]
        ]
    }

  
] 
}