simpleLinearRegression

Introduced in: v20.1.0 Performs simple (unidimensional) linear regression. Syntax

simpleLinearRegression(x, y)

Arguments

x — Column with explanatory variable values. Float64
y — Column with dependent variable values. Float64

Returned value Returns constants (k, b) of the resulting line y = k*x + b. Tuple(Float64, Float64) Examples Perfect linear fit

Query

SELECT arrayReduce('simpleLinearRegression', [0, 1, 2, 3], [0, 1, 2, 3]);

Response

┌─arrayReduce('simpleLinearRegression', [0, 1, 2, 3], [0, 1, 2, 3])─┐
│ (1,0)                                                             │
└───────────────────────────────────────────────────────────────────┘

Linear fit with offset

Query

SELECT arrayReduce('simpleLinearRegression', [0, 1, 2, 3], [3, 4, 5, 6]);

Response

┌─arrayReduce('simpleLinearRegression', [0, 1, 2, 3], [3, 4, 5, 6])─┐
│ (1,3)                                                             │
└───────────────────────────────────────────────────────────────────┘

​simpleLinearRegression

simpleLinearRegression