can anyone tell why is that for example esignal data creates less bars on 47 tick chart then IB with same chart of 47 tick,what is the reason.

here are the images both the charts are of 47 tick chart one from esignal with ninja and other is of IB with siera chart.

eSignal does not filter data to my knowledge, IB does heavily filter data, so they will never match.

By filter, it means either by time or number of ticks, like IB sends 1 packet burst of ticks for every 10 ticks on the market, and some others do 1 packet burst of all ticks that occurred over a certain time, say 250ms.

Mike

mike thanks for the reply,so which one should we prefer IB or eisgnal for intraday trading.

Which view of the market do you feel is easiest for you to make money with...? I don't think there is a "right" answer. Everything on your chart is a filter of some sort to slice and dice the price data. Take a look. Here is an esignal feed in first picture then a feed from gain which is filtered. In the example I show here I prefer the filtered feed. It provides a clearer view to me.

thanks websouth i also agree with u.

That also means that if we get data from filtered data sources we can have an upper edge in the market such as IB.

Thanks for the idea. This cleared up a couple question I had about the respective data feeds. Its easy to assume that heavy filtering can interfere with some of the analytic's used for trading. I've found however that sometimes we overlook certain aspects that can be tremendously helpful.

As I know eSignal send the real time data tick by tick but IB doesn't. IB just send the data every 0.2 ~ 0.3 sec interval.