Avg KPI: To get average of array object property

 {"payload":[

{"name": "product1", "price": 100},

{"name": "product2", "price": 25},

{"name": "product1", "price": 50},

{"name": "product2", "price": 75},

{"name": "product3", "price": 25}

]}

payload{name:$average(price)} ~> $each(function($v, $n) {{

'name': $n,

'avg': $v

}}) ^(avg) //this is for ascending/descending order