Library "on_balance_volume"
on_balance_volume: custom on balance volume
obv_diff(string, simple) obv_diff: custom on balance volume diff version
Parameters:
string: type: the moving average type of on balance volume
simple: int len: the moving average length of on balance volume
Returns: obv_diff: custom on balance volume diff value
obv_diff_norm(string, simple) obv_diff_norm: custom normalized on balance volume diff version
Parameters:
string: type: the moving average type of on balance volume
simple: int len: the moving average length of on balance volume
Returns: obv_diff: custom normalized on balance volume diff value