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Chad,
I am wondering why my charts on IRT do not match my esignal charts exact.
I have attached two pics . The curser is right at 8:40 on both charts and you will notice that the candles are not the same as far a range, open, and close. Both charts are exactly the same interval tick charts and they are both set to 24 hours. Should the candels not be exactly the same?
By the way they are both getting data from the same source so I dont think that's it. |
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It's hard to tell specifically what's causing the difference in this case, as I don't know the logic & details behind the other program/chart, but there can be a few reasons. Since both charts are being fed by the same data feed, that rules out the fact that some data feeds package multiple trades together into one tick, while others don't.
With tick-based (tikcbars), volume-based (volume bars), or price range-based (range bars) periodicities, the formation of the bars is highly on the date/time where the bars begin. Investor/RT has an option for "Continuous Tick & Volume Bars" in setup: prefs: charts: general window. When checked, tickbars can cross session boundaries. When unchecked, tickbars will begin fresh at the beginning of each session. If using the former, the view period of the chart determines where the bars begin. If using the later, the bars always begin at the start of session. And in turn, you can setup your charts on the day session (sess 2) or the globex sess (sess 2).
Regardless, the underlying data is the same, but when you change the starting point of when you begin packaging that data into groups of ticks....then the bars will form differently. Hope that makes sense.