log(base: numeric, value: numeric) -> float64

Returns logarithm of a numeric expression (second argument) with the provided base (first argument).

The base should be greater than 0 and not exactly 1.0 and the value should be greater than 0.

Domain

This is a scalar function (calculates a single output value for a single input row).

Categories

• Numeric

Examples

make_col log_val:log(10, @.temperature)

Returns the logarithm of column temperature at base 10