2.2.4.48.2 XYRange::GetDatasetNames

Contents

Description

Get dataset names of XYRange

Syntax

BOOL GetDatasetNames( string & strY, string & strX = NULL, string & strYErr = NULL, int nIndex = 0 )

Parameters

strY
[output]Dependent dataset name
strX
[output]Independent dataset name
strYErr
[output]YErr dataset name if exists
nIndex
[input]The data index

Return

Examples

EX1 

//Do Subtraction between XYRange yi and XYRange yi2, then output the result to XYRange yo.
bool XYRange_GetDatasetNames_Prepare(const XYRange& yi, const XYRange& yi2, XYRange& yo)
{
    string strX, strY;
    if(!yi.GetDatasetNames(strY, strX))
        return error_report("failed getting 1st XY input");
 
    Curve cy1(strX, strY);
 
    if(!yi2.GetDatasetNames(strY, strX))
        return error_report("failed getting 2nd XY input");
    Curve cy2(strX, strY);
 
    if(!yo.GetDatasetNames(strY, strX))
        return error_report("failed getting XY output");
    Curve cyo(strX, strY);
 
    if(cy1 && cy2 && cyo)
    {
        cyo = cy1 - cy2;
    }
    else
        return error_report("not all curves constructed successfully.");
 
    return true;
}

//Assume there is Book1, Book1 have three sheets, each sheet has two columns.
//Output XY Range dr3 to sheet3.
void XYRange_GetDatasetNames_ex1()
{
	WorksheetPage wksPage("Book1");
	Worksheet wks1 = wksPage.Layers(0);
	//Contruct 3 XY Ranges.
	XYRange dr1;
	dr1.Add(wks1, 0, "X");
	dr1.Add(wks1, 1, "Y");
	
	Worksheet wks2 = wksPage.Layers(1);
	XYRange dr2;
	dr2.Add(wks2, 0, "X");
	dr2.Add(wks2, 1, "Y");
	
	Worksheet wks3 = wksPage.Layers(2);
	XYRange dr3;
	dr3.Add(wks3, 0, "X");
	dr3.Add(wks3, 1, "Y");
	
	//Do subtraction
	XYRange_GetDatasetNames_Prepare(dr1, dr2, dr3);
		
}

Remark

See Also

XYRange::GetDescription

Header to Include

origin.h