Bar chart is plotting for empty value and Line chart is not appeared in CombinedChartView

[muthusabarinathan]

What did you do?

I would like to create a chart for stocks price and volume. So I chooses combinedChartView. I would like to show date in xAxis. I tried it with charts-swift demo code.

What did you expect to happen?

My expectation is to show price value as LineChart and Volume value as Bar chart like below mentioned Image.

What happened instead?

But when i tried the demo chart using my values, I got bar chart alone instead of combine the line chart.

And also am passing only 5 values. But chart shows 7 values, Jun 9 and Jun 10 is also plotting with no bar(I don't pass Jun 9 and Jun 10).

Herewith I attached my demo project file:

CombinedChartViewController.swift.zip

Charts Environment

Charts version/Branch/Commit Number: 3.1.1
Xcode version: 9.2
Swift version: 3.2
Platform(s) running Charts: iOS
macOS version running Xcode: 10.13.1

Please help me to achieve this.

[thierryH91200]

you are confusing date and interval

change

extension ChartXAxisFormatter: IAxisValueFormatter {
    func stringForValue(_ value: Double, axis: AxisBase?) -> String {
        var date: [String]! = ["2018-06-12","2018-06-11","2018-06-08","2018-06-07","2018-06-06"]
        
        public func stringForValue(_ value: Double, axis: AxisBase?) -> String
        {
            return date[ Int(value) ]
        }
    }
}

and
date -> i

       for i in 0 ..< dateArr.count {
            let date = dateFormatter.date(from: dateArr[i])
            let yValue1: Double = Double(priceArr[i])
            let yValue2: Double = Double(volumeArr[i])
            let dataPoints = DataPointsValue(_xDate: i, _value1: yValue1, _value2: yValue2)
            chartData.append(dataPoints)
        }

[muthusabarinathan]

@thierryH91200 - Thank you so much. It perfectly works. Can you have any idea to draw bar chart in bottom like my expectation image.

[thierryH91200]

I did not understand the question sorry

[muthusabarinathan]

Nothing. I fixed it. Thanks for your valuable solutions.