Quote from wrbtrader:
The problem exist and is very "common". Any one that has two different data sources will know such very well. As I noted, every body is different. Thus, the data may be good but ISP that streams the data to you may not be good for a few seconds or few minutes on any given trading day. On another day its the data vendor fault, on another day its something else.
Anybody expecting every data vendor on this planet to have perfect data or expecting every ISP on this planet to not have missed some data packets or expecting the internet to stream every data packet flawlessly...that person is not being realistic.
Simply, charts are not perfectly the same from one trader to the next trader regardless if its a discretionary trader or automated trader. Thus, in theory, the TA should be different depending upon the type of TA being used as in my example of Japanese Candlestick Analysis I mentioned earlier.
It probably makes sense if you're a very short-term trader or use some really poor data feed like IB (which even has high/low ticks off at times :eek: ), but speaking of more or less "slow" day trading trendlines would still be exactly the same in case of regulated futures markets with centralized price "prints".
