Support Board
Date/Time: Tue, 26 Nov 2024 17:46:19 +0000
How to compare EMA to price?
View Count: 1532
| [2014-05-21 19:38:46] |
| User12676 - Posts: 70 |
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I have done sc.ExponentialMovAvg(sc.BaseDataIn[SC_LAST], sc.Subgraph[0], 20); float ExponentialMovAvg = sc.Subgraph[0][sc.Index]; if (price < ExponentialMovAvg) { do something } <--- but this doesnt work How do you compare price to an ema properly? |
| [2014-05-21 19:46:17] |
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if (price < sc.Subgraph[0][sc.Index]) Refer to: http://www.sierrachart.com/index.php?l=doc/doc_ACS_ArraysAndLooping.html 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 |
| [2014-05-21 20:36:53] |
| User12676 - Posts: 70 |
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I think the problem is that after initialization of the EMA array, I cannot even see it on the chart. Yes i have it defined SCSubgraphRef ExponentialMA = sc.Subgraph[1]; ExponentialMA.Name = "Exponential Moving Average"; ExponentialMA.DrawStyle = DRAWSTYLE_LINE; ExponentialMA.PrimaryColor = RGB(255,0,255); sc.SimpleMovAvg(sc.BaseDataIn[SC_LAST], ExponentialMA, 20); How come I don't see it on the chart? |
| [2014-05-21 20:39:19] |
| User12676 - Posts: 70 |
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Its like the initialization is not working...
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| [2014-05-21 20:40:01] |
| User12676 - Posts: 70 |
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I was switching between simple and exponential to see if there was a bug... hence the mismatch in variable names
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| [2014-05-21 20:41:58] |
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We need to see the complete study function.
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 |
| [2014-05-21 20:56:29] |
| User12676 - Posts: 70 |
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Strange, when I put it in a study file all by itself, it works. When I add if to my study, it doesnt.... I modified the zig zag study and added it there SCSFExport scsf_ZigZagCumulativeVolumeStudy(SCStudyInterfaceRef sc) { SCSubgraphRef ZigZagLine = sc.Subgraph[0]; SCSubgraphRef Accumulated = sc.Subgraph[4]; sc.Subgraph[4].LineWidth = 6; SCSubgraphRef VPM = sc.Subgraph[7]; SCSubgraphRef AccumulatedVolumeOpenClose = sc.Subgraph[6]; SCSubgraphRef ER = sc.Subgraph[8]; AccumulatedVolume = sc.Subgraph[9]; AccumulatedDiffVolume = sc.Subgraph[10]; AccumulatedLegTime = sc.Subgraph[11]; ZA = sc.Subgraph[12]; ZU = sc.Subgraph[13]; ZD = sc.Subgraph[14]; SCSubgraphRef Long = sc.Subgraph[20]; SCSubgraphRef Short = sc.Subgraph[21]; SCSubgraphRef ExponentialMA = sc.Subgraph[99]; SCInputRef VolumeToAccumulate = sc.Input [0]; SCInputRef VersionUpdate = sc.Input[14]; SCInputRef CalculationMode = sc.Input[17]; SCInputRef ReversalAmount = sc.Input[19]; SCInputRef NumberBarsForReversal = sc.Input[20]; SCInputRef RangeRatio = sc.Input[21]; SCInputRef Invert = sc.Input[22]; SCInputRef ShowBidVolumePositive = sc.Input[23]; SCInputRef BlendedVolumePeriod = sc.Input[24]; SCInputRef ActiveMarketHours = sc.Input[25]; //HIDDEN SCInputRef CalcOnBarClose = sc.Input[49]; SCInputRef InputDataHigh = sc.Input[50]; SCInputRef InputDataLow = sc.Input[51]; SCInputRef ReversalPercent = sc.Input[54]; if(sc.SetDefaults) { //During development set this flag to 1, so the DLL can be modified. //When development is completed, set it to 0 to improve performance. sc.FreeDLL = 1; sc.GraphName="MIKE WAVE ALERT"; //Manual looping sc.AutoLoop = 0; sc.ValueFormat= 0; //MIKE sc.GraphRegion = 1; sc.GraphRegion = 0; ZigZagLine.Name = "MIKE WAVE ALERT"; ZigZagLine.DrawStyle = DRAWSTYLE_IGNORE; Accumulated.Name= "Accumulated"; //MIKE Accumulated.DrawStyle = DRAWSTYLE_BAR; Accumulated.DrawStyle = DRAWSTYLE_IGNORE; Accumulated.SecondaryColorUsed = 1; Accumulated.PrimaryColor = RGB(90,150,231); Accumulated.SecondaryColor = RGB(167,48,48); ER.Name= "Effort Reward Bars"; ER.DrawStyle = DRAWSTYLE_COLORBAR; ER.SecondaryColorUsed = 1; ER.PrimaryColor = RGB(0,255,255); ER.SecondaryColor = RGB(255,0,0); VolumeToAccumulate.Name= "Volume To Accumulate"; VolumeToAccumulate.SetCustomInputStrings("Total Volume;Ask Bid Volume Difference;Force Ratio;Cum Momentum + Cum Momentum Diff;Cum Momentum + Per Bar Momentum Diff;Cum Momentum + Per Bar Momentum and Volume Diff;Cum Momentum;Cum Momentum + Per Bar Volume Diff;Blended Volume Diff;Blended Volume Total;Leg Time"); VolumeToAccumulate.SetCustomInputIndex(10); VersionUpdate.SetInt(1); InputDataHigh.Name = "Input Data for High"; InputDataHigh.SetInputDataIndex(SC_LAST); InputDataLow.Name = "Input Data for Low"; InputDataLow.SetInputDataIndex(SC_LAST); CalculationMode.Name = "Mode (1,2,3)"; CalculationMode.SetInt(2); CalculationMode.SetIntLimits(1, 3); ReversalPercent.Name = "Reversal % for Mode 1"; ReversalPercent.SetFloat(.05f); //ORIG ReversalAmount.Name = "Reversal Amount for Mode 2,3"; ReversalAmount.Name = "Reversal Amount"; ReversalAmount.SetFloat(0.5f); NumberBarsForReversal.Name = "Bars Required for Reversal (Mode 2)"; NumberBarsForReversal.SetInt(1); CalcOnBarClose.Name = "Calculate New Values On Bar Close"; CalcOnBarClose.SetYesNo(1); ShowBidVolumePositive.Name = "Show Bid Volume As Positive"; ShowBidVolumePositive.SetYesNo(0); RangeRatio.Name = "Range Ratio (Per bar, not cumulative)"; RangeRatio.SetCustomInputStrings("None;Open / Close;High / Low"); RangeRatio.SetCustomInputIndex(0); Invert.Name = "Invert"; Invert.SetYesNo(0); BlendedVolumePeriod.Name = "Blended Volume Period"; BlendedVolumePeriod.SetInt(10); ActiveMarketHours.Name = "Active Market Hours (For Leg Time)"; ActiveMarketHours.SetString("0630-1115"); // Volume Price Mismatch Bars VPM.Name = "Volume Price Mismatch"; VPM.DrawStyle = DRAWSTYLE_BAR; VPM.DrawZeros = false; VPM.SecondaryColorUsed = 1; VPM.PrimaryColor = RGB(128,128,128); VPM.SecondaryColor = RGB(128,128,128); // Long Color Long.Name = "Long"; Long.DrawStyle = DRAWSTYLE_COLORBAR; Long.PrimaryColor = RGB(90,150,231); Long.DrawZeros = false; // Short Color Short.Name = "Short"; Short.DrawStyle = DRAWSTYLE_COLORBAR; Short.PrimaryColor = RGB(204,88,146); Short.DrawZeros = false; ExponentialMA.Name = "Exponential Moving Average"; ExponentialMA.DrawStyle = DRAWSTYLE_LINE; ExponentialMA.PrimaryColor = RGB(255,0,255); return; } sc.ExponentialMovAvg(sc.Close, ExponentialMA, 20); |
| [2014-05-21 22:57:00] |
| User12676 - Posts: 70 |
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Ok, well i deleted most of the code and have this left and it still doesnt draw the EMA on the chart.... Very wierd // The top of every source code file must include this line #include "sierrachart.h" // This line is required. Change the text within the quote // marks to what you want to name your group of custom studies. SCDLLName("MIKE_WAVE_ALERT") /*==========================================================================*/ SCSFExport scsf_ZigZagCumulativeVolumeStudy(SCStudyInterfaceRef sc) { SCSubgraphRef ExponentialMA = sc.Subgraph[1]; ExponentialMA.Name = "Exponential Moving Average"; ExponentialMA.DrawStyle = DRAWSTYLE_LINE; ExponentialMA.PrimaryColor = RGB(255,0,255); if(sc.SetDefaults) { //During development set this flag to 1, so the DLL can be modified. //When development is completed, set it to 0 to improve performance. sc.FreeDLL = 1; sc.GraphName="MIKE WAVE ALERT"; //Manual looping sc.AutoLoop = 0; sc.GraphRegion = 0; return; } sc.ExponentialMovAvg(sc.BaseDataIn[SC_LAST], ExponentialMA, 20); } |
| [2014-05-21 23:08:44] |
| User12676 - Posts: 70 |
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Well, after figiting it has to do with the autoloop. Please advise how to properly calculate EMA when doing manual loop in the zig zag study
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| [2014-05-21 23:11:16] |
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You need to read the documentation here about this: http://www.sierrachart.com/index.php?l=doc/doc_ACS_ArraysAndLooping.html We will not provide more help than this. 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 |
| [2014-05-21 23:46:25] |
| User12676 - Posts: 70 |
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Thank you. I finally got it working.
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