The Accelerator Oscillator has been developed by Bill Williams as the development of the Awesome Oscillator. It represents the difference between the Awesome Oscillator and the 5-period moving average, and as such it shows the speed of change of the Awesome Oscillator, which can be useful to find trend reversals before the Awesome Oscillator does.
You can change long to short in the Input Settings Please, use it only for learning or paper trading. Do not for real trading