A line chart is a type of graph that shows how something changes over time. Data points in the line chart represent the individual values at specific points in time or in a continuous interval. These data points are then connected with lines to illustrate how the values change or trend over the period.
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How to Proceed?
Step 1Launch power BI desktop app and open the new report page and import the data required.
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Step 2
Add a Line chart by clicking Insert > Line chart on the Home ribbon or select the Line chart visual from the Visualizations pane (or the Build a visual menu if On-object Interaction is enabled).
Step 3
Drag the required fields into the appropriate field wells in the Build visual section (or use Add data if On-object Interaction is enabled).
X axis: Represent categories – Year
Y axis: Shows the Count of medal
Legend:
The Legend identifies the different data series displayed in the chart. In this example, the legend separates the medal categories (Gold, Silver, and Bronze), allowing users to compare their trends over time.
Step 4:
Filters in Power BI allows us to control and shape the data as per our needs. Here we are showing the page level filter where we can display only the data we want to show in reports or dashboards. By slicing and dicing the data we can gain insights from it.
Here, we used filters in medal (Filtered only Gold, Bronze and Silver) and in Region (Top 10 countries by medal count).
Step 5:
Customizing the appearance of Line chart
You can customize the appearance of the visual. You can change Title, Font size, Style, Colors and Data labels.
Click anywhere on the visual and open the Format visual pane to customize properties such as the title, legend, data colors, data labels, axes, background, and other formatting options.
In this visual, I chose background colour as blue and gave 87% transparency which reduces the intensity of the colour.
Give suitable title for the visual and customize the font size, colour and position of the title.
Chose colours for the line to show different categories.
To add data labels to the Line chart, click on the “Data Labels” section under “Visual”. Here you can choose which data to display in the labels and adjust their position, font, and color.
In this visual, to place the position of data labels. Under formatting visuals, click on data labels and choose the desired options.
Here for this visual, we used “Above” option to display the data.
Step 6 Save the visual
Finally, your Line chart is ready. Save the Power BI report to preserve the visual and its formatting.
When to use Line chart?
Line charts are most appropriate when we want to visualize trends, changes over time, and to display continuous data, compare different categories
Pros
- Line charts are generally simple and easy to understand the visual which makes easily accessible to everyone
- It is great in showing changes of data over time and patterns in a clear manner.
- In line chart we can clearly identify when the data goes up or down which helps in spotting important changes
Cons
- Line chart can be used only to show changes over time, it will not be suitable to show other types of data
- With too many data points, the line chart becomes clumsy and difficult to read the data
Conclusion
The Line chart is one of the most commonly used visuals in Power BI for analyzing trends and changes over time. With flexible formatting options, interactive filtering, drill-down capabilities, and integration with other report visuals, it provides an effective way to identify patterns and communicate business insights.
Useful Information
| Tags | Power BI |
| Useful links | https://powerbidocs.com/2020/01/25/power-bi-line-chart-visualization// |
| MS Learn Modules | Line charts in Power BI |
| Test Your Knowledge | Quiz |
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