Base 2 logarithm for financial time series object
log2 is not recommended. Use timetable instead. For more information, see Convert Financial Time Series Objects fints to Timetables.
newfts = log2(tsobj)
newfts = log2(tsobj) calculates the base 2 logarithm of the data
series in a financial time series object tsobj. It returns another
time series object newfts containing the logarithms.