math:log2() | Data Analysis 1.143.0-1.153.3

`math:log2()`

Calculates the base 2 logarithm of a double field.

Parameter	Type	Required	Default Value	Description
`as`	string	optional^[a]	`_log2`	The name of the output field.
`field`^[b]	string	required		The name of the input field.
^[a]Optional parameters use their default value unless explicitly set. ^[b]The parameter name `field` can be omitted.

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Omitted Argument Names
The argument name for field can be omitted; the following forms of this function are equivalent:
logscale Syntax
math:log2("value")
and:
logscale Syntax
math:log2(field="value")
These examples show basic structure only.