====Example - Detecting Leaks or Discontinuities====

This Agent has two inputs and is designed to spot a sudden drop in value across a sequence.

In this case, we are looking for a difference between the value of a property between an asset and it's neighbour. We can do this with a [[spider attachment|spider]] attachment and a [[differential|differential]] algorithm.

We want to set the //min// property of the differential algorithm to the minimum difference that we would consider 'a problem'.

In this case, let's go with 80kPa.

===Code===

<code>
{
   "name": "Leak",
   "style": "Differential",
   "normalise": "*",
   "data": {
		"min": ">80",
                "abs": "true"
   },
   "inputs": [ 
             { "name": "Target" }, 
             { "name": "Actual" }, 
   ],
   "outputs": [ {
		"name": "Status",
		"style": "boolean",
		"threshold": ">0.85"
	  }
	],
   "binding": {
		"Actual": "{-1}.Pressure - Air"
		"Target": "{0}.Pressure - Air"
	},
	"attachment": [ {
		"style": "spider",		
		"asset": "Air Compressor"
      }
	]
}
</code>