the x axis label is not in the right position when I used groupBarChart

[ganjmeng]

I try to create multiple bar chart in objective-c. I look into the example project. But some how, the x axis label is not in the right position.

You can see at the image above. The position of the label and the grouped bar is not in the same position. How I can fix this problem?

[liuxuan30]

be sure to follow what's in multiple bar chart:

        let groupSpace = 0.08
        let barSpace = 0.03
        let barWidth = 0.2
        // (0.2 + 0.03) * 4 + 0.08 = 1.00 -> interval per "group"

I'm not sure if your value sum to 1.0.

[ganjmeng]

I'm sure

[liuxuan30]

post your calculation of this.