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Date/Time: Thu, 25 Apr 2024 06:03:06 +0000



Accumulated Volume study - updating incorrectly

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[2019-03-20 01:16:34]
User629461 - Posts: 158
Hi, I have been using the Accumulated Volume study (in replay mode on intraday charts) and found that it updates incorrectly as the chart is progressed, requiring manual Recalculation every few bars. Is this a glitch or am I missing a setting somewhere? I have not tried it in live mode but suspect the same.
Thanks
[2019-03-20 01:45:55]
Sierra Chart Engineering - Posts: 104368
There is no study named that in Sierra Chart. It must be a custom study from an outside developer. If it is a built-in study we need the exact name.
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy:
https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation

For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service:
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[2019-03-20 09:33:44]
User629461 - Posts: 158
The study is Zig Zag Cumulative Volume, on the chart header its called Accumulated Volume - don't know why theres a difference.
[2019-03-20 09:33:45]
User629461 - Posts: 158
The study is Zig Zag Cumulative Volume, on the chart header its called Accumulated Volume - don't know why theres a difference.
[2019-03-20 14:47:28]
Sierra Chart Engineering - Posts: 104368
Attach that chart following the instructions here:
Support Board Posting Information: Providing Chartbook with Only a Single Chart
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy:
https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation

For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service:
Sierra Chart Teton Futures Order Routing
[2019-03-20 23:19:23]
User629461 - Posts: 158
See attached chartbook file with Zig Zag Cumulative Volume study included on 3000 tick intraday ES chart. If you start the replay function, you will notice the Zig Zag study updates but does not update correctly and requires Recalculate to update historical zig zag bars based on the new price bars. This should happen automatically without the need to perform manual recalculation.
Date Time Of Last Edit: 2019-03-20 23:22:55
attachmentChartbook_Sierra Support_Zig Zag Vol.Cht - Attached On 2019-03-20 23:19:09 UTC - Size: 30.29 KB - 284 views
[2019-03-21 02:14:34]
Sierra Chart Engineering - Posts: 104368
One definite mistake you are making is that you have these Inputs set to Last:
https://www.sierrachart.com/index.php?page=doc/StudiesReference.php&ID=133&Name=Zig_Zag#Inputs_InputDataForHigh

You cannot do that. They must be set the default of High and Low and we are not going to provide any support by using Last.

And also apparently it is just a characteristic of the particular calculation mode 3, where there is a difference between the real-time periodic calculations and the historical calculations across closed bars. This is not something we are going to spend time analyzing unless you are willing to pay for the analysis. But if we have a chance, we may have a quick look at this. But our time is quite limited. We suggest that you read through the descriptive formulas to understand the behavior exactly and why you see what you do.
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy:
https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation

For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service:
Sierra Chart Teton Futures Order Routing
Date Time Of Last Edit: 2019-03-21 02:21:19
[2019-03-21 02:59:12]
User629461 - Posts: 158
Thanks for the explanation. The Last (closing price) is required as it is really the only valid price point for this type of study for my purpose.
Without dynamic real-time and historical automatic updates, this makes the study virtually useless since it requires continual manual updating, particularly as a critical trading tool, which is why I chose Sierra platform as other platforms don't have similar studies.
Furthermore, for my purposes I believe that using calc Mode 2 with a 'number of bars required' value set to zero or 1 would achieve the same result as calc Mode 3, if this make it easier. Would you consider reviewing this decision?
Date Time Of Last Edit: 2019-03-21 02:59:51
[2019-03-22 05:13:40]
Sierra Chart Engineering - Posts: 104368
Ok we had some time to think about this and the solution is to set the Calculate New Values on Bar Close Input to Yes.

So this way you can set the Input data High/Low Inputs to Last.

This will solve the inconsistencies between historical and real-time updating and we have updated the relevant documentation. As we studied the behavior of this study, we realize that inherently you are going to get inconsistent behavior between a full recalculation real-time updating in some cases.
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy:
https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation

For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service:
Sierra Chart Teton Futures Order Routing
Date Time Of Last Edit: 2019-03-22 05:13:52
[2019-03-23 01:41:43]
User629461 - Posts: 158
Thanks, that does fix the historical updating of the previous zigzags. The problem in this configuration is the current zigzag bar is built as a stand-alone bar irrespective of price change until the next price bar is formed, rather than dynamically adding it to the previous zigzag or creating a new zigzag (depending on price change). Also, its colour is opposite to the previous zigzag colour until the recalculation is made at the completion the the price bar. Is this what you meant in your last sentence? Can this be updated to work as it should as it requires distracting mental processing during live trading.
Thanks
[2019-03-26 02:26:10]
Sierra Chart Engineering - Posts: 104368
Yes the last bar in the chart cannot be used until it is considered complete which is not until there is another new bar after it.
Sierra Chart Support - Engineering Level

Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy:
https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation

For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service:
Sierra Chart Teton Futures Order Routing

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