# log¶

## Description¶

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.

float64

## Domain¶

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

## Usage¶

log( base, value )


Argument

Type

Required

Multiple

base

numeric

Required

Only one

value

numeric

Required

Only one

## Examples¶

make_col log_val:log(10, @.temperature)


Returns the logarithm of column temperature at base 10