use as much as you can,draw yearly then add monthly,daily and keep those on your chart,for the opening you can add 5 minute to that ,and try to determine when the big orders are done,the market is like a big superball bouncing off walls,try to ride it from one wall to another..even if you don't trade that way,if you are a swingtrading it gives you definition for entry and exit ,te more you play with it ,the more repitition you will see you widen or narrow your view according to market range and momentumQuote from 1a2b3cppp:
How do you know how much data to use? Change the timeframe and the volumes will change = different data = different mean.