func generateBarData()

in ChartsDemo-macOS/PlaygroundChart.playground/Pages/CombinedChart.xcplaygroundpage/Contents.swift [59:102]

• 28 lines of code
• 2 McCabe index (conditional complexity)

func generateBarData() -> BarChartData
{
//: ### BarChartDataEntry
    var entries1 = [BarChartDataEntry]()
    var entries2 = [BarChartDataEntry]()
    
    for _ in 0..<ITEM_COUNT
    {
        entries1.append(BarChartDataEntry(x: 0.0, y: (Double(arc4random_uniform(25) + 25))))
/*:
- Note: stacked
*/
        entries2.append(BarChartDataEntry(x: 0.0, yValues: [Double(arc4random_uniform(13) + 12), Double(arc4random_uniform(13) + 12)]))
    }
//: ### BarChartDataSet
    let set1            = BarChartDataSet(values: entries1, label: "Bar 1")
    set1.colors         = [#colorLiteral(red: 0.235294117647059, green: 0.862745098039216, blue: 0.305882352941176, alpha: 1.0)]
    set1.valueTextColor = #colorLiteral(red: 0.235294117647059, green: 0.862745098039216, blue: 0.305882352941176, alpha: 1.0)
    set1.valueFont      = NSUIFont.systemFont(ofSize: CGFloat(10.0))
    set1.axisDependency = .left
    
    let set2            = BarChartDataSet(values: entries2, label: "Bar 2")
    set2.stackLabels    = ["Stack 1", "Stack 2"]
    set2.colors         = [#colorLiteral(red: 0.23921568627451, green: 0.647058823529412, blue: 1.0, alpha: 1.0),  #colorLiteral(red: 0.090196078431373, green: 0.772549019607843, blue: 1.0, alpha: 1.0)]
    set2.valueTextColor = #colorLiteral(red: 0.23921568627451, green: 0.647058823529412, blue: 1.0, alpha: 1.0)
    set2.valueFont      = NSUIFont.systemFont(ofSize: CGFloat(10.0))
    set2.axisDependency = .left
//: ### BarChartData
    let groupSpace = 0.06
    let barSpace = 0.02
    let barWidth = 0.45
    
/*: 
- Note:  x2 dataset
(0.45 + 0.02) * 2 + 0.06 = 1.00 -> interval per "group"
 */
    let data = BarChartData(dataSets: [set1, set2])
    data.barWidth = barWidth
/*:
- Note: make this BarData object grouped
*/
    data.groupBars(fromX: 0.0, groupSpace: groupSpace, barSpace: barSpace)     // start at x = 0
    return data
}