log10 Function

The log10 function returns the base 10 logarithm of x.

Syntax

log10(<x>) as <field>

Examples

Compute the base-10 log of a literal value

* | log10(2) as v

Apply base-10 log scaling to a response size field

Use log10 to scale response sizes across orders of magnitude:

_sourceCategory=Apache/Access
| parse "size=*" as size
| num(size)
| log10(size) as log_size
| timeslice 5m
| avg(log_size) by _timeslice