Demonstrates how to add Error Bars to an iOS Line or Scatter Chart.

There are two Error Bar Series Types in SciChart iOS: The SCIFastErrorBarsRenderableSeries requires an SCIHlcDataSeries as data source. The High, Low values are used to set the high and low position of the errors, while the Close (Y-value) is the center of the error bar.

A second error bar type is the SCIFixedErrorBarsRenderableSeries. This requires only a SCIXyDataSeries with X,Y values. Error values are fixed and specified by the properties errorHigh and errorLow. The errorType property specifies whether the error is Relative or Absolute.

Tip!

Do you need to change the width of the Error Bars? Try the dataPointWidth property. This alters how much space the bar takes up.

// ErrorBarsChartView.m

//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2018. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// ErrorBarsChartView.m is part of the SCICHART® Examples. Permission is hereby granted
// to modify, create derivative works, distribute and publish any part of this source
// code whether for commercial, private or personal use.
//
// The SCICHART® examples are distributed in the hope that they will be useful, but
// without any warranty. It is provided "AS IS" without warranty of any kind, either
// expressed or implied.
//******************************************************************************

#import "ErrorBarsChartView.h"
#import "DataManager.h"

@implementation ErrorBarsChartView

- (void)initExample {
    id<SCIAxis2DProtocol> xAxis = [SCINumericAxis new];
    id<SCIAxis2DProtocol> yAxis = [SCINumericAxis new];
    
    SCIHlDataSeries * dataSeries0 = [[SCIHlDataSeries alloc] initWithXType:SCIDataType_Double YType:SCIDataType_Double];
    SCIHlDataSeries * dataSeries1 = [[SCIHlDataSeries alloc] initWithXType:SCIDataType_Double YType:SCIDataType_Double];
    
    DoubleSeries * data = [DataManager getFourierSeriesWithAmplitude:1.0 phaseShift:0.1 xStart:5.0 xEnd:5.15 count:5000];
    
    [self fillSeries:dataSeries0 sourceData:data scale:1.0];
    [self fillSeries:dataSeries1 sourceData:data scale:1.3];

    uint color = 0xFFC6E6FF;
    SCIFastErrorBarsRenderableSeries * errorBars0 = [SCIFastErrorBarsRenderableSeries new];
    errorBars0.strokeStyle = [[SCISolidPenStyle alloc] initWithColorCode:color withThickness:1.f];
    errorBars0.dataSeries = dataSeries0;
    
    SCIEllipsePointMarker * pMarker = [SCIEllipsePointMarker new];
    pMarker.width = 5;
    pMarker.height = 5;
    pMarker.fillStyle = [[SCISolidBrushStyle alloc]initWithColorCode:color];
    
    SCIFastLineRenderableSeries * lineSeries = [SCIFastLineRenderableSeries new];
    lineSeries.strokeStyle = [[SCISolidPenStyle alloc] initWithColorCode:color withThickness:1.f];
    lineSeries.dataSeries = dataSeries0;
    lineSeries.pointMarker = pMarker;
    
    SCIFastErrorBarsRenderableSeries * errorBars1 = [SCIFastErrorBarsRenderableSeries new];
    errorBars1.strokeStyle = [[SCISolidPenStyle alloc] initWithColorCode:color withThickness:1.f];
    errorBars1.dataSeries = dataSeries1;
    [errorBars1 setDataPointWidth:0.7];
    
    SCIEllipsePointMarker * sMarker = [[SCIEllipsePointMarker alloc]init];
    sMarker.width = 7;
    sMarker.height = 7;
    sMarker.fillStyle = [[SCISolidBrushStyle alloc]initWithColorCode:0x00FFFFFF];
    
    SCIXyScatterRenderableSeries * scatterSeries = [SCIXyScatterRenderableSeries new];
    scatterSeries.dataSeries = dataSeries1;
    scatterSeries.pointMarker = sMarker;
    
    [SCIUpdateSuspender usingWithSuspendable:self.surface withBlock:^{
        [self.surface.xAxes add:xAxis];
        [self.surface.yAxes add:yAxis];
        [self.surface.renderableSeries add:lineSeries];
        [self.surface.renderableSeries add:scatterSeries];
        [self.surface.renderableSeries add:errorBars0];
        [self.surface.renderableSeries add:errorBars1];
        self.surface.chartModifiers = [[SCIChartModifierCollection alloc] initWithChildModifiers:@[[SCIPinchZoomModifier new], [SCIZoomPanModifier new], [SCIZoomExtentsModifier new]]];
        
        [errorBars0 addAnimation:[[SCIScaleRenderableSeriesAnimation alloc] initWithDuration:3 curveAnimation:SCIAnimationCurve_EaseOutElastic]];
        [lineSeries addAnimation:[[SCIScaleRenderableSeriesAnimation alloc] initWithDuration:3 curveAnimation:SCIAnimationCurve_EaseOutElastic]];
        [errorBars1 addAnimation:[[SCIScaleRenderableSeriesAnimation alloc] initWithDuration:3 curveAnimation:SCIAnimationCurve_EaseOutElastic]];
        [scatterSeries addAnimation:[[SCIScaleRenderableSeriesAnimation alloc] initWithDuration:3 curveAnimation:SCIAnimationCurve_EaseOutElastic]];
    }];
}

- (void)fillSeries:(id<SCIHlDataSeriesProtocol>)dataSeries sourceData:(DoubleSeries *)sourceData scale:(double)scale {
    SCIArrayController * xValues = [sourceData getXArray];
    SCIArrayController * yValues = [sourceData getYArray];
    
    for (int i = 0 ; i < xValues.count; i++) {
        double y = SCIGenericDouble([yValues valueAt:i]) * scale;
        [dataSeries appendX:[xValues valueAt:i] Y:SCIGeneric(y) High:SCIGeneric(randf(0.0, 1.0) * 0.2) Low:SCIGeneric(randf(0.0, 1.0) * 0.2)];
    }
}

@end

// ErrorBarsChartView.swift

//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2018. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales:   sales@scichart.com
//
// ErrorBarsChartView.swift is part of the SCICHART® Examples. Permission is hereby granted
// to modify, create derivative works, distribute and publish any part of this source
// code whether for commercial, private or personal use.
//
// The SCICHART® examples are distributed in the hope that they will be useful, but
// without any warranty. It is provided "AS IS" without warranty of any kind, either
// expressed or implied.
//******************************************************************************

class ErrorBarsChartView: SingleChartLayout {
    
    override func initExample() {
        let xAxis = SCINumericAxis()
        let yAxis = SCINumericAxis()
        
        let dataSeries0 = SCIHlDataSeries(xType: .double, yType: .double)
        let dataSeries1 = SCIHlDataSeries(xType: .double, yType: .double)
        
        let data: DoubleSeries = DataManager.getFourierSeries(withAmplitude: 1.0, phaseShift: 0.1, xStart: 5.0, xEnd: 5.15, count: 5000)
        
        fillSeries(dataSeries: dataSeries0, sourceData: data, scale: 1.0)
        fillSeries(dataSeries: dataSeries1, sourceData: data, scale: 1.3)
        
        let color: uint = 0xFFC6E6FF
        let errorBars0 = SCIFastErrorBarsRenderableSeries()
        errorBars0.strokeStyle = SCISolidPenStyle(colorCode: color, withThickness: 1.0)
        errorBars0.dataSeries = dataSeries0

        let pMarker = SCIEllipsePointMarker()
        pMarker.width = 5
        pMarker.height = 5
        pMarker.fillStyle = SCISolidBrushStyle(colorCode: color)

        let lineSeries = SCIFastLineRenderableSeries()
        lineSeries.strokeStyle = SCISolidPenStyle(colorCode: 0xFFC6E6FF, withThickness: 1.0)
        lineSeries.dataSeries = dataSeries0
        lineSeries.style.pointMarker = pMarker
        
        let errorBars1 = SCIFastErrorBarsRenderableSeries()
        errorBars1.strokeStyle = SCISolidPenStyle(colorCode: 0xFFC6E6FF, withThickness: 1.0)
        errorBars1.dataSeries = dataSeries1
        errorBars1.dataPointWidth = 0.7;
        
        let sMarker = SCIEllipsePointMarker()
        sMarker.width = 7
        sMarker.height = 7
        sMarker.fillStyle = SCISolidBrushStyle(colorCode:0x00FFFFFF)
        
        let scatterSeries = SCIXyScatterRenderableSeries()
        scatterSeries.dataSeries = dataSeries1
        scatterSeries.style.pointMarker = sMarker
        
        surface.renderableSeries.add(scatterSeries)
        SCIUpdateSuspender.usingWithSuspendable(surface) {
            self.surface.xAxes.add(xAxis)
            self.surface.yAxes.add(yAxis)
            self.surface.renderableSeries.add(lineSeries)
            self.surface.renderableSeries.add(scatterSeries)
            self.surface.renderableSeries.add(errorBars0)
            self.surface.renderableSeries.add(errorBars1)
            self.surface.chartModifiers = SCIChartModifierCollection(childModifiers: [SCIPinchZoomModifier(), SCIZoomExtentsModifier(), SCIZoomPanModifier()])
            
            errorBars0.addAnimation(SCIScaleRenderableSeriesAnimation(duration: 3, curveAnimation: .easeOutElastic))
            lineSeries.addAnimation(SCIScaleRenderableSeriesAnimation(duration: 3, curveAnimation: .easeOutElastic))
            errorBars1.addAnimation(SCIScaleRenderableSeriesAnimation(duration: 3, curveAnimation: .easeOutElastic))
            scatterSeries.addAnimation(SCIScaleRenderableSeriesAnimation(duration: 3, curveAnimation: .easeOutElastic))
        }
    }
    
    fileprivate func fillSeries(dataSeries: SCIHlDataSeriesProtocol, sourceData: DoubleSeries, scale: Double) {
        let xValues: SCIArrayController = sourceData.getXArray()
        let yValues: SCIArrayController = sourceData.getYArray()
        
        for i in 0..
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