18 February 2019
A Line chart is a graph displaying information as a series of data points connected by line segments. It shows the trend of a measure or a variable over time, essentially, how the data changes over time.
Though the Line chart is a basic data visualisation tool, it is important and widely used for:
Every leader needs to track how their business processes change over time to drive efficiency and save costs. As a result, the Line chart remains a hero in data visualisation!
Fun fact: The Line Graph was invented in the late 1700s by William Playfair, a Scottish engineer and political economist. Playfair served as a secret agent (ironically) during the war with France.
Line charts demonstrate data trends clearly and concisely. This makes it easy for decision-makers to analyse information quickly and draw business insights when they need them.
In the Healthcare industry, line graphs could take the form of control charts. They are vital for measuring how a process changes over time. Healthcare professionals may also use Line charts to track patient satisfaction levels.
Taking a glimpse into the Finance sector, line graphs display metrics like working capital ratio, return on equity or debt-equity ratio.
Customer metrics are fundamental in Retail. Line charts help retailers monitor the total number of customers visiting their store or keep a close eye on how their stock is moving.
The Manufacturing sector focuses on maximising production levels. Line charts are a great way to measure production volume. They’re also key in managing product quality by tracking the number of defect products or to optimise costs by reflecting maintenance costs over time.
Tracking cost savings is vital in the Energy and Utilities sector. Line charts can help companies measure and visualise metrics like total consumption or total sales over time.
The success of Communication companies hinges on their customers. Their executives often use Line charts to measure the level of customer satisfaction through their Net Promoter Score. Line charts also help them visualise costs like cost- per-lead-over-time.
In the Tech sector, Line charts can show decision-makers uptime vs. downtime within service delivery or track costs like spend vs. budget.
Public sector institutes, like governments, measure economic metrics such as national debt levels or government spending with Line charts. In schools, they may use Line charts to track enrollment figures over time.
In Life Sciences, accurate scientific information is their lifeblood. These institutes display crucial data with Line charts, like costs-over-time, for developing life-saving drugs.
Companies that produce and sell Consumer Products use Line charts to monitor trends over time like sales or metrics on their specific products. They also use Line charts to evaluate data relationships like sales and distribution to gain data-driven insights.
The Vizlib Line Chart is a fully customisable Multi-Line chart, adding an array of user-friendly design elements and detail-oriented features to the native Qlik Sense Object.
Data storytellers benefit from the extension’s features including:
Here are a few tips to create highly-customised Line charts with the Vizlib Line Chart:
You have the freedom to design your Line chart the way you want to with the Vizlib Line Chart extension. Let this data visualisation object communicate the trends that drive valuable insights.
Learn more on the Vizlib Line Chart here.
Here are a few examples of customised Line charts created with the Vizlib Line Chart:
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