iOS Charts Remove Decimal from Yvalues

iOS Charts remove decimal from yValues

Thanks for every one who tried to help, here was the fix, adding the below code

    let formatter = NumberFormatter()
    formatter.numberStyle = .none
    formatter.maximumFractionDigits = 0
    formatter.multiplier = 1.0
    chartData.valueFormatter = DefaultValueFormatter(formatter: formatter)

to the setBarChartData func

func setBarChartData(xValues: [String], yValues: [Double], label: String) {

    var dataEntries: [BarChartDataEntry] = []

    for i in 0..<yValues.count {
        let dataEntry = BarChartDataEntry(x: Double(i), y: yValues[i])
        dataEntries.append(dataEntry)
    }

    let chartDataSet = BarChartDataSet(values: dataEntries, label: label)
    let chartData = BarChartData(dataSet: chartDataSet)

    let formatter = NumberFormatter()
    formatter.numberStyle = .none
    formatter.maximumFractionDigits = 0
    formatter.multiplier = 1.0
    chartData.valueFormatter = DefaultValueFormatter(formatter: formatter)

    let chartFormatter = BarChartFormatter(labels: xValues)
    let xAxis = XAxis()
    xAxis.valueFormatter = chartFormatter
    self.xAxis.valueFormatter = xAxis.valueFormatter

    self.data = chartData
}

iOS Charts ValueFormatter

Almost there, just need to add the following class:

class ChartValueFormatter: NSObject, IValueFormatter {
    fileprivate var numberFormatter: NumberFormatter?

    convenience init(numberFormatter: NumberFormatter) {
        self.init()
        self.numberFormatter = numberFormatter
    }

    func stringForValue(_ value: Double, entry: ChartDataEntry, dataSetIndex: Int, viewPortHandler: ViewPortHandler?) -> String {
        guard let numberFormatter = numberFormatter
            else {
                return ""
        }
        return numberFormatter.string(for: value)!
    }
}

Now use this as the number formatter:

let numberFormatter = NumberFormatter()
numberFormatter.numberStyle = .decimal
numberFormatter.locale = Locale.current
let valuesNumberFormatter = ChartValueFormatter(numberFormatter: numberFormatter)
lineChartDataSet.valueFormatter = valuesNumberFormatter
lineChartDataSet.valueFont = lineChartDataSet.valueFont.withSize(chartFontPointSize)

remove zero line from ios charts

If you just want to hide the xAxis, then I see two ways:

You could disable the xAxis xAxis.enabled = false

Or set the xAxis line color to transparent xAxis.axisLineColor = UIColor.clear

Charts 3.0 - Can not show decimal in BarChart - iOS Swift

I get the answer:

let format = NumberFormatter()
format.numberStyle = .decimal
let formatter = DefaultValueFormatter(formatter: format)
chartData.setValueFormatter(formatter)

Y-axis is repeating values - iOS Charts

you could also try:

/// When true, axis labels are controlled by the `granularity` property.
/// When false, axis values could possibly be repeated.
/// This could happen if two adjacent axis values are rounded to same value.
/// If using granularity this could be avoided by having fewer axis values visible.
public var granularityEnabled = false

and set yAxis.granularity = some value

How can I hide 0 values on ios-chart?

I made it happen on a PieChart in one of my apps just like that :

    ...
    let dataSet = PieChartDataSet(yVals: yVals, label: nil)

    // This is where the magic happen
    // You set a NSNumberFormatter with an empty zero Symbol
    let noZeroFormatter = NumberFormatter()
    noZeroFormatter.zeroSymbol = ""
    dataSet.valueFormatter = ChartDefaultValueFormatter(formatter: noZeroFormatter)

    let chartData = PieChartData(xVals: xVals, dataSet: dataSet)
    ...

How can I convert these doubles to integers on this iOS Bar Chart?

Give the chartDataSet its own valueFormatter:

This Q&A shows how to create the valueFormatter you need. Then set the valueFormatter of charDataSet to:

chartDataSet.valueFormatter = DigitValueFormatter()

X Axis values being repeated rather than replaced iOS Charts

I fixed the issue myself by adding

   chartContainer.xAxis.granularityEnabled = true
   chartContainer.xAxis.granularity = 1.0

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