regr_avgx

Returns the mean of the independent variable.

regr_avgx

Introduced in: v26.9.0

Returns the mean of the independent variable.

It is taken around a value from the data rather than around zero, so for an integer column past 2^53 it can be closer to the exact mean than avg, which divides a Float64 sum.

Syntax

regr_avgx(y, x)

Aliases: regrAvgX

Arguments

• y — Dependent variable. (U)Int* or Float*
• x — Independent variable. (U)Int* or Float*

Returned value

Returns the mean of x. Float64

Examples

Basic usage

Query

SELECT regr_avgx(y, x)
FROM VALUES('x Float64, y Float64', (1, 2), (2, 4), (3, 6), (4, 8))

Response

┌─regr_avgx(y, x)─┐
│             2.5 │
└─────────────────┘