How to create a step graph?

You need to use the line chart field, please take a look in the following documentation:
forum.appian.com/.../SAIL_Components

I have already reviewed the documentation and following it I can't get the desider result. What I am able to achieve it far differnt from what I need. Please see the inteface code here:
=a!lineChartField(
categories: {0, 100, 101, 200, 201, 300, 301, 400, 401, 500},
series: {
a!chartSeries(label: "Discount", data: {2, 2, 4, 4, 6,6, 8,8,10,10})
},
xAxisTitle: "Sales threshold",
yAxisTitle: "Discount %",
showLegend: false
)

Could you send me an example that will present exactly what I sent?

What you want is a bar chart field, and you name each category to represent the range "0-100","101-200" and so on.

Mike, thanks. I know that I can use bar chart but unfortunately it does not give me the result that I need. Actually what I need is "Scatter with Stright Lines" available in Excel.
Any other idea how to achieve this?

Micha?, you will not be able to achieve the same exact replica in Appian. In Excel, the x axis numbers are treated as continuous. In Appian, each category (100, 101, 200, 201, etc.) is discrete from one another and as you probably have noticed, it does not look good.
Moreover, I think that a bar chart is actually better. It achieves the desired result (convey the breakdown of discount levels based on sales) but it also clearly shows the sales numbers per discount level. In your screenshot, without the table on the side, I cannot really tell where the next steps starts (101 or maybe 102?).

Mike,
Thanks for clarification.
The problem is that the x axis size also matters. The example was realy simple just to understand the case. But in real the thresholds are not always the same I would like to present its size (e.g. first step is 0-100, another 101-500, next 501 - 2000).
Given that it's impossible to create such a report, I will have to use bar chart instead. If you will find any workaround, please let me know.