SC programming help. Newbie question.

November 19th, 2015, 12:27 PM

Hi all!

I'm trying to create a simple (I thought it would be simple!) study using sc.GetStudyArrayUsingID() to overlay onto my volume by price study. Maybe I shouldn't be using this function?

I am wanting to draw a horizontal line based on a calculation involving either the high or low of the day and the POC.

I would like to add the POC to the low of the day value if the POC is above the mid point of the day (another line that I have on the chart)

or

If the POC is below the mid point of the day I would like the POC subtracted from the high of the day.

I hope this makes sense!

Any help greatly appreciated.

Thanks Gordon

November 19th, 2015, 01:21 PM

busy trading, but this code shows examples of how to reference other studies to perform secondary work on them

Code

// The top of every source code file must include this line
// SM_CCI_Alerts.cpp

#include "sierrachart.h"
#include <math.h>


/*****************************************************************************

	For reference, you want to look at the Advanced Custom Study Interface
	and Language documentation on the Sierra Chart website. 
	
*****************************************************************************/


// This line is required.
// Change the text within the quote marks to what you want to name
// your group of custom studies. 

SCDLLName("SM_CCI_Alerts DLL") 

//This is an empty study function.  Auto looping is enabled. 
SCSFExport scsf_CCI_Alerts_SM(SCStudyGraphRef sc)
{

	// Section 1 - Set the configuration variables     
	
	if (sc.SetDefaults)  // This section only run once upon adding an instance of the study to a chart
	{
		// Set the configuration and defaults
		
		sc.GraphName = "SM_CCI_Alerts";
		
		sc.StudyDescription = "CCI Alerts";
		
		sc.AutoLoop = 1;  // true
		
		sc.GraphRegion = 0;  // On main price chart.
		
		//sc.AlertOnlyOncePerBar = 1;
		
		// Uncomment the following line when you're done with your
		// development.  This makes calling your function faster.
		sc.FreeDLL = 0;  // Production setting
		//sc.FreeDLL = 1;  // Development setting
				
		return;
		
	}
		
	
	// Everything below here is run on every chart update or when the chart is
	// reloaded.
	
		sc.CCI(
			sc.BaseDataIn[SC_HLC],  // This is the input array or source data -- this is using the Last or Close from each bar
			sc.Subgraph[0],  // This designates your output array (subgraph/plot) -- this is using Subgraph 1
			sc.Index,  // This parameter is always sc.CurrentIndex
			5, 0.015);  // This is the length for the CCI and float multiplier, which is from Input 0
			
		sc.CCI(
			sc.BaseDataIn[SC_HLC],  // This is the input array or source data -- this is using the Last or Close from each bar
			sc.Subgraph[1],  // This designates your output array (subgraph/plot) -- this is using Subgraph 1
			sc.Index,  // This parameter is always sc.CurrentIndex
			20, 0.015);  // This is the length for the CCI and float multiplier, which is from Input 0
			
		sc.CCI(
			sc.BaseDataIn[SC_HLC],  // This is the input array or source data -- this is using the Last or Close from each bar
			sc.Subgraph[2],  // This designates your output array (subgraph/plot) -- this is using Subgraph 1
			sc.Index,  // This parameter is always sc.CurrentIndex
			50, 0.015);  // This is the length for the CCI and float multiplier, which is from Input 0
	

		
		//  This section is checking for CCI locations/values  //
	
		if (sc.Subgraph[0][sc.Index] >= 100)
			if (sc.Subgraph[1][sc.Index] >= 100)
				if (sc.Subgraph[2][sc.Index] >= 100)
					sc.SetAlert(7);   // all CCI's in pos. zoom
					
		if (sc.Subgraph[0][sc.Index] <= -100)
			if (sc.Subgraph[1][sc.Index] <= -100)
				if (sc.Subgraph[2][sc.Index] <= -100)
					sc.SetAlert(8);	  // all CCI's in neg. zoom
			
		float CCIdiff = abs(sc.Subgraph[0][sc.Index] - sc.Subgraph[2][sc.Index]);
		
		if (sc.Subgraph[0][sc.Index] > sc.Subgraph[2][sc.Index])
			if (CCIdiff >= 150)
				sc.SetAlert(9);  // snap back down
				
		if (sc.Subgraph[0][sc.Index] < sc.Subgraph[2][sc.Index])
			if (CCIdiff >= 150)
				sc.SetAlert(10);  // snap back UP
		
	
}

November 19th, 2015, 02:31 PM

Thanks hobart,

Appreciate the reply during the trading day.
I still have a fair bit of study to do because that is still making very little sense to me! lol

Gordon

November 23rd, 2015, 07:07 AM

Code

sc.CCI(
			sc.BaseDataIn[SC_HLC],  // This is the input array or source data -- this is using the Last or Close from each bar
			sc.Subgraph[2],  // This designates your output array (subgraph/plot) -- this is using Subgraph 1
			sc.Index,  // This parameter is always sc.CurrentIndex
			50, 0.015);  // This is the length for the CCI and float multiplier, which is from Input 0
	

		
				if (sc.Subgraph[2][sc.Index] >= 100)
					sc.SetAlert(7);   // all CCI's in pos. zoom

In this snippit, i call the built in study CCI, store the result in sc.Subgraph[2], then reference if its current bar value (sc.index) is greater than 100.

November 23rd, 2015, 04:23 PM

Great, Thanks again for the information Hobart.

I am slowly getting there, and all of this helps.

Gordon

SC programming help. Newbie question.

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SC programming help. Newbie question.