Quote Originally Posted by Abdulrahman
I noted one point on both of planetary index and bradley index as well, that is, when the indicator is applied to chart, it keeps fixed with the same shape no matter how forward or backward the time is drawn by the user. What is the reason behind this?
If I understood you correctly, a Bradley graph is the same no matter what its screen start date is.
To make things clear, set invisible all other graphs like price and planetary lines and then click toolbar Forward/Backward blue buttons with arrows and compare the graphs.

That's what I've got:



What do you see in the case?