Support Board
Date/Time: Fri, 21 Feb 2025 09:47:46 +0000
[Programming Help] - Historical Data for sc.GetBasicSymbolData
View Count: 79
| [2025-02-19 19:03:38] |
| User763002 - Posts: 30 |
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Hi Support, Is there a way to pull historical data for symbols that are being used with the sc.GetBasicSymbolData function? Thanks |
| [2025-02-19 21:39:12] |
| cmet - Posts: 639 |
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Probably take a few steps. What exactly are you trying to do? |
| [2025-02-20 01:43:07] |
| Sierra_Chart Engineering - Posts: 18503 |
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No this is not supported. You will need a separate chart for those symbols and reference them: Referencing Other Time Frames and Symbols When Using the ACSIL 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: 2025-02-20 01:43:40
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| [2025-02-20 02:16:13] |
| User763002 - Posts: 30 |
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Thank you Engineering, is this something I can put in as a feature request? Cmet, I am attempting to make a custom index using some of the equities, but the weights of the index change fairly frequently so I am trying to avoid using the built-in custom symbol functionality. |
| [2025-02-20 03:34:53] |
| cmet - Posts: 639 |
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Well, there you go. Not too difficult to pull data from separate charts and plot the index. Can manually adjust weights with inputs or, if you have a dynamic way to calc those, you can add an auto update functionality. Quick example if you need it. Add as many symbols/weights as you want as long as it has an open chart. #include "sierrachart.h"
SCDLLName("WeightedIndexStudy") SCSFExport scsf_WeightedIndex(SCStudyInterfaceRef sc) { SCSubgraphRef IndexValue = sc.Subgraph[0]; SCInputRef Chart1 = sc.Input[0]; SCInputRef Chart2 = sc.Input[1]; SCInputRef Chart3 = sc.Input[2]; SCInputRef Weight1 = sc.Input[3]; SCInputRef Weight2 = sc.Input[4]; SCInputRef Weight3 = sc.Input[5]; if (sc.SetDefaults) { sc.GraphName = "Weighted Index"; sc.AutoLoop = 1; IndexValue.Name = "Index Value"; IndexValue.DrawStyle = DRAWSTYLE_LINE; IndexValue.PrimaryColor = RGB(0, 255, 0); IndexValue.LineWidth = 2; Chart1.Name = "Chart Number 1"; Chart1.SetChartNumber(1); Chart2.Name = "Chart Number 2"; Chart2.SetChartNumber(2); Chart3.Name = "Chart Number 3"; Chart3.SetChartNumber(3); Weight1.Name = "Weight 1"; Weight1.SetFloat(0.5f); Weight2.Name = "Weight 2"; Weight2.SetFloat(0.3f); Weight3.Name = "Weight 3"; Weight3.SetFloat(0.2f); return; } SCFloatArray Stock1, Stock2, Stock3; sc.GetChartArray(Chart1.GetChartNumber(), SC_LAST, Stock1); sc.GetChartArray(Chart2.GetChartNumber(), SC_LAST, Stock2); sc.GetChartArray(Chart3.GetChartNumber(), SC_LAST, Stock3); if (Stock1.GetArraySize() > sc.Index && Stock2.GetArraySize() > sc.Index && Stock3.GetArraySize() > sc.Index) { IndexValue[sc.Index] = (Stock1[sc.Index] * Weight1.GetFloat()) + (Stock2[sc.Index] * Weight2.GetFloat()) + (Stock3[sc.Index] * Weight3.GetFloat()); } } Date Time Of Last Edit: 2025-02-20 04:04:18
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| [2025-02-20 13:52:00] |
| User763002 - Posts: 30 |
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Thanks Cmet, much appreciated
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