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24 lines
776 B
Plaintext
24 lines
776 B
Plaintext
{
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"name": "stdev",
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"type": "function",
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"groups": ["Aggregates"],
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"description": "Returns the aggregate standard deviation value from a field or expression.",
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"arguments": [{
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"arg": "expression",
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"description": "sub expression of field to aggregate"
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}, {
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"arg": "group_by",
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"optional": true,
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"description": "optional expression to use to group aggregate calculations"
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}, {
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"arg": "filter",
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"optional": true,
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"description": "optional expression to use to filter features used to calculate aggregate"
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}],
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"examples": [{
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"expression": "stdev(\"population\",group_by:=\"state\")",
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"returns": "standard deviation of population value, grouped by state field"
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}],
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"tags": ["deviation", "field", "standard", "aggregate"]
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}
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