core plot help to draw two plots together

How开发者_StackOverflow中文版 to draw both bar and scatter plot together? I have created object of both in viewDidLoad and the datasource also read correctly. I add it to the same plotspace. But no use!

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Have you looked at the example programs? Many of them show how to add multiple plots (of the same or different types) to a single graph.

What are you seeing? Does either plot show up, or neither of them?

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Just add multiple plots to graph with graph addPlot

CPTScatterPlot * sPlot = [[CPTScatterPlot alloc] init];
    dataLineStyle = [CPTMutableLineStyle lineStyle];
    sPlot.identifier = @"SomeIdentifier"

    dataLineStyle.lineWidth = 1.0f;
    dataLineStyle.lineColor = [CPTColor redColor];
    sPlot.dataLineStyle = dataLineStyle;
    sPlot.dataSource = self;

    greenCirclePlotSymbol = [CPTPlotSymbol ellipsePlotSymbol];
    greenCirclePlotSymbol.fill = [CPTFill fillWithColor:[CPTColor redColor]];
    greenCirclePlotSymbol.size = CGSizeMake(5.0, 5.0);
    sPlot.plotSymbol = greenCirclePlotSymbol;  

    [graph addPlot:sPlot];