LOG
About the function
This function is used to find the logarithm of values in a time series or a number.
Briggs logarithms use the base number 10. The logarithm to a number x, is the exponent c, which the base number must be raised with to get the number x.
10c = x -> log x10 = c
The input value must be a positive number larger than 0. If not, the function returns an empty value.
Syntax
- LOG(t|d)
| # | Type | Description |
|---|---|---|
| 1 | t | Time series |
| 1 | d | Number |
Example
Example 1: @LOG(t)
Temperature_hour_VV = @LOG(@t('Temperature_hour_raw'))
Example 2: @LOG(d)
ResultTs = @LOG(1)
Example 2 returns the number 0 for all rows.
