Line chart - What is it, Definition, Meaning, How does that work?

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Line Chart

Are you interested in knowing about the Stock Market but are overwhelmed with the numbers and charts? Here is an insight into line charts—an essential tool to add value in the hands of a potential investor or a knowledge seeker. Line chats make it easy to comprehend market trends and fluctuations. 

What is a Line Chart?

line chart is a visual representation where a straight line links data points. It is a simple and suitable tool to see trends, patterns, or changes occurring over time. In the context of the stock market, line charts are frequently employed to draw the historical prices of stocks, indices, or financial instruments. The points on the line chart are data on assets at a specific moment, and the connecting lines show how the data develops.

The primary parts of a line chart include
 

  • X-axis: Represents the independent variable, which is frequently time. 
  • Y-axis: Represents the dependent variable or the value that is being measured. 
  • Data points: Individual points plotted that signify a particular value of the data series. 
  • Line segments: The straight lines that join all the data points in each data series. 
  • Legends: Labels that identify the distinct data series on the chart. 
  • Title: Labels the subject of the chart. 
  • Axes labels: that state the units or context of the data on the line chart.

Types of Line Charts

Line charts come in various forms, each serving a unique purpose. Let's explore the different types of line charts

  • Simple Line Chart: As the name implies, it is the simplest type; only one line goes on the chart. It is perfect for representing one variable; for example, the chart may display how a particular stock's price has changed over days.
  • Multiple Line Chart: Unlike a simple line chart, multiple line charts have more than one line on the same axes. This is the perfect type of chart when you want to compare various things simultaneously. A multiple-line chart is ideal for comparing similar businesses over the years. For example, the price of multiple houses and the way it fluctuates.
  • Compound Line Chart: Drawing a compound line chart becomes necessary when the information can be divided into two or several kinds of data. In this circumstance, lines are drawn to illustrate the parts of a total. The top line represents the total, while the lines below represent individual parts. 

By reading some examples of a line chart, you can understand this concept quickly. 

Advantages of Line Charts

Line charts offer a range of distinct advantages that contribute to their popularity and effectiveness in visualising data trends:

  1. Simplification of Complex Data: Line charts are excellent for simplifying complex data to make the data sets comprehensible. This can be highly beneficial when you’re dealing with many intricate data patterns and want to make it simpler to understand everything. 
  2. More Visible Trends: The lines throughout line charts immediately create a more informative image. They show how values adjust over time in one slide, which trends are happening and the ultimate outcomes. 
  3. Conveying Compelling Stories: These line charts may help you distinguish patterns and corrections, making them an essential resource for data narration.
  4. Comparative AnalysisLine charts enable you to draw multiple lines on the same chart and quickly determine the correlations, associations, and differences between several variables.
  5. Predictive Insights: Line charts allow analysts to predict future trends based on historical data, providing solid forecasts to guide decision-making.
  6. Interpretability: Line charts are simple and understandable; as such, they can be used by people with little analytical expertise and data specialists, depending on the goals.
  7. Visualising Continuous Data: Line charts are particularly effective in visualising continuous data, such as time-series information.
     

As learning line charts may build confidence and attract you for further investment, check out this guide to learn more about the top 5 best stocks for beginners.

How Does a Line Chart Work?

Line charts plot a series of data points onto a two-dimensional grid. 

  • The gauge or x-axis is the time, and the y-axis is the measured values or quantities. 
  • The points are connected with straight lines, showing whether the data values increase or decrease. 
  • A short upward slope indicates an increase or improvement, while a downward slope indicates a decrease or lessening of data. 
  • The severe slopes demonstrate a sound trend and significant changes, while the less severe slopes indicate lesser changes and do not depict a stable trend. 
  • The line chart can accommodate additional features. For example, a marker represents a point with different colours for different groups, such as dots and squares, representing some data points. Other features can be added as a shaded region to indicate a period of interest or uncertainty during which some interventions occur and affect the trend.
     

Conclusion
 

Line charts simplify extensive data, make the trends more visible, and put you in an advantageous position to make comparisons and sound investment decisions. If you are an experienced player or someone trying to understand the world of finance, line charts will always be a game-changer. 

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  • Can a line chart be visualised for purposes other than the value of some stock or financial instrument?

  • How many lines can be plotted on a single-line chart?

  • Are line charts appropriate for visualising categorical data?

  • How can I emphasise specific points or periods on a line chart?

  • Can I use a line chart in a presentation or report?

  • Is a line chart limited, or does it have cons?

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