Here’s a question from Alice:
I am working on a dashboard which includes a stacked bar chart. Need to add a constant line that runs horizontally starting the ;eft hand side of the y axis and is based on a measure in the data model. Any ideas on how to proceed?
Step 1: Create your Power BI chart
- At the bottom of the Power BI Report View hit the + icon to add a new Page to your report.
- From the Visualizations pane, drag a new visual. In this example we will use a Stacked column chart.
- Drag the relevant fields into your chart. In this example we will use the Month name field for the X axis. the Amount Sum for the Y-Axis and the Course Name for the legend.
Step 2: Insert a constant horizontal line
To add an horizontal reference line parallel to the X – Axis, proceed as following:
- Select your visual.
- From the Visualizations pane, hit the magnifying glass (add analyses to your visual).
- Under Constant Line. hit the Add Line link.
- Name your horizontal line – in this case the selected name will be Profitability.
- Type a Value – in our case, we selected 13000.
- Set the Line style and Position.
Here’s the chart
Here’s our chart – note the dashed line running in parallel to the x-Axis line.
Note: Make sure to adjust the Transparency setting in case that your constant line is not showing up.
Step 3: Insert an horizontal line based on measure
Another option is to base the reference line on the value of a measure:
- First, off let’s define a measure in our data model. In our case we’ll define a measure representing the Average Sales Amount.
- We will then hit the Add further Analyses to your visual button.
- Under Value, hit the function button.
- Pick the Measure from the data model.
- Hit OK.
- The horizontal line data label and position values will be updated as shown below: