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{
"name": "range",
"type": "function",
2020-07-02 01:46:48 +01:00
"groups": ["Aggregates"],
"description": "Returns the aggregate range of values (maximum - minimum) from a field or expression.",
"arguments": [
{"arg":"expression", "description":"sub expression of field to aggregate"},
{"arg":"group_by", "optional":true, "description":"optional expression to use to group aggregate calculations"},
{"arg":"filter", "optional":true, "description":"optional expression to use to filter features used to calculate aggregate"}
],
"examples": [
{ "expression":"range(\"population\",group_by:=\"state\")", "returns":"range of population values, grouped by state field"}
]
}