Most frequent value in a full period ending at the current bar; equal
frequencies choose the smallest value. Warmup is NaN. Missing values
propagate by default; skip collects period finite observations and holds
across gaps. Invalid periods throw RangeError; unknown policies TypeError.
Most frequent value in a full period ending at the current bar; equal frequencies choose the smallest value. Warmup is NaN. Missing values propagate by default;
skipcollects period finite observations and holds across gaps. Invalid periods throw RangeError; unknown policies TypeError.