To apply the methodThe tool supports interface of Foresight Analytics Platform 9 or earlier.
The Natural Logarithm method calculates the natural logarithm of the series: Ln(X[t]). It is a part of a group of arithmetic methods.
NOTE. A natural logarithm can be calculated only for series values within the range (0,∞).
After the method is applied, in the workbook, based on each selected series a calculated series with a name of the Ln(<Series_Name>) type is created, containing the calculation results. For example:
See also:
Working with Calculated Series | Modeling Container: Transformations on Variables or Factors | IModelling.Ln
Arithmetic button on the Calculations ribbon tab.