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999 B
999 B
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avgWeighted
Calculates the weighted arithmetic mean.
Syntax
avgWeighted(x, weight)
Parameters
x— Values. Integer or floating-point.weight— Weights of the values. Integer or floating-point.
Type of x and weight must be the same.
Returned value
- Weighted mean.
NaN. If all the weights are equal to 0.
Type: Float64.
Example
Query:
SELECT avgWeighted(x, w)
FROM values('x Int8, w Int8', (4, 1), (1, 0), (10, 2))
Result:
┌─avgWeighted(x, weight)─┐
│ 8 │
└────────────────────────┘