documentationln¶
Description¶
Returns natural logarithm of a numeric expression. The value should be greater than 0.
Return type¶
float64
Domain¶
This is a scalar function (calculates a single output value for a single input row.)
Categories¶
Usage¶
ln(value)
Argument |
Type |
Optional |
Repeatable |
Restrictions |
|---|---|---|---|---|
value |
numeric |
no |
no |
none |
Examples¶
make_col ln_val:ln(@.temperature)
Returns the natural logarithm of column temperature