Adaptive Relative Strength shows a line of relative strength with a moving period in relative to Nifty 500 for Indian Market, by default its 45 days but you can change as per your need or change relative symbol as per your need.
What code you have given is not adoptive relative strength. ARS means calculation of RS from user defined date. Can you please post the code with calculation of RS from user defined date. In case data is not available from user defined date then consider first available bar as ARS date. Normally this is required in case of newly listed stocks. Thanks in advance for your efforts.