Support Board
Date/Time: Tue, 22 Apr 2025 10:32:30 +0000
Incorrect values for export bar data to text file
View Count: 136
| [2025-01-20 20:59:36] |
| User846910 - Posts: 11 |
|
I am using version 2626. I've only found this issue for ZB futures contract. settings: Continuous Futures-Volume Based Rollover, Back adjusted. Default symbol settings for Price Display, Tick Size (1/32, 1/32). Problem: The exported values are wrong and are offset from actual value. ie. price 91 8/32, should be 91.25 but text file shows 91.24956. This also shows up on the chart when using the Chart Value/Crosshairs tool. If Chart Value/Crosshairs tool is showing 91 8/32, the drawn bar itself is just a touch below that value. The value does show correctly as 91 8/32 in the Tool Values Window. I've tried deleting and redownloading all the data files but no change. |
| [2025-01-20 22:37:25] |
| Sierra_Chart Engineering - Posts: 19305 |
|
We cannot help with this. This simply relates to the precision of single precision floating point values.
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, use the Teton service: Sierra Chart Teton Futures Order Routing |
| [2025-01-20 23:01:14] |
| User846910 - Posts: 11 |
|
I thought about that too so I checked ZN, TN (0.5/32 tick size) and ZF (0.25/32 tick size) and they are all completely accurate down to the last decimal place. I check UB, which is also 1/32 tick size and it is off a little bit as well just like ZB which is also 1/32 tick size. Why would 1/32 be off and not 0.5/32? 1/32 can be represented exactly in binary so shouldn't suffer from precision issues? |
| [2025-01-21 01:48:12] |
| Sierra_Chart Engineering - Posts: 19305 |
|
We really cannot help with this. The imprecision is already known and a solution is provided: Data and Trading Communications (DTC) Protocol Server: US Bond Futures Pricing 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, use the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2025-01-21 01:48:42
|
To post a message in this thread, you need to log in with your Sierra Chart account: