otp.math.ln# ln(value)[source]# Compute the natural logarithm of the value. Parameters value (int, float, Operation, Column) – Return type Operation Examples >>> data = otp.Tick(A=1) >>> data['LN'] = otp.math.ln(2.718282) >>> data.to_df() Time A LN 0 2003-12-01 1 1.0 See also onetick.py.math.exp