All You Need to Know About Line Graph

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What is A Line Graph?

A line graph uses lines to connect data points that show quantitative values over a specified period. They indicate positive benefits on the horizontal x-axis and a vertical y-axis. Generally, a grid is formed by intersecting perpendicular lines formed by both the axes, using a line. They display shorter changes and are better than bar graphs for the aspect.

A line graph is especially helpful in showing recurring data to facilitate comparison. For instance, repeated experiments in the field of science or other subjects, tables used are not intuitive enough to analyze. Thus, line graphs are useful to better indicate the data changes over time in the form of easy to read interface.

line graph

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What Are the Advantages of A Line Graph?

Look at some benefits of having line graphs.

  • You can easily show the data changes over time over a line graph.

  • It is also helpful to show small changes that are difficult to measure in other graphs.

  • A relationship between 2 or more variables get identified.

  • It presents a good impression of trends and changes.

  • Both negative, as well as positive values, are indicated.


What Are the Disadvantages of A Line Graph?

Here are some limitations of using line graphs.

  • Plotting too many lines over the graph makes it cluttered and confusing to read.
  • A wide range of data is challenging to plot over a line graph.
  • They are only ideal for representing data made of total figures such as values of total rainfall in a month.


Line Graph VS. Line Plot

Line Graphs and Line Plots are similar as well as different in some aspects. Let’s see how in the tables given below.







What Are the Components of A Line Graph?

You need several components required to draw a line graph as follows.

  • Data

Data is the most significant part of making a line graph. So, before you go to make a line graph, collect and add substantial data. It is usually contained in a two-column table corresponding to y and x-axes. You can even add a label if you want to attract attention to a specific set of data.

  • Plot

Then, you need a plot or graph paper or graph segment to indicate all those values. If you are a concerned business professional or tech-savvy guy, you will use the online tool to create a line graph.

  • Labeling each axis

Each axis needs a different label. You need to select which data set to present on which axis. Commonly, the data related to the money plot on the y-axis. And, each section requires labeling such as Time, Days, and Revenue, etc.

  • Legend

The legend is useful to add more than one set of data on a line. It represents the information about tracked data to help viewers understand and read the graph.

  • Title

A title is a must to create an identity for your chart. It should not be just the repeated labels, but specific information should be added to indicate what the data accurately represents.


Line Graph Examples

Here are some Line Graph examples.

Example 1:  Income of two companies A & B.

The data is shown in units if lakh rupees for presenting the income of two plastic manufacturing companies. Y-axis is represented as income in lakh rupees, whereas the x-axis is used to show the different years in which the companies earn income. Two lines are used with varying symbols over them to differentiate each other. In this example, profit is taken as a % of expenditure to make further analysis.

line graph example

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Example 2:  Weight

In this single line graph, Sam's weight is the weight (kg) on the y-axis and month on the x-axis. It is a simple form of a diagram drawn to show how the weight of Sam has changed over different months from January to May. The chart shows that the weight of Sam is continually increasing each month.

line graph example

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Example 3:  Number of satellites launched by different countries

In this Line Graph example, four different countries are shown to represent the satellites launched by them over many years. The four countries presented are USA, India, China, and Japan. You can analyze this data further in finding ratios of satellites launched by different countries. So, a line graph is handy to find out other information related to the aspect.

line graph example

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How to Draw a Line Graph with EdrawMax?

EdrawMax Online is one such precise diagramming tool to create a line graph if you are finding one at an online platform. Its online version is much easy to use and equipped with specific diagramming tools. We want to suggest EdrawMax Online version to create different diagrams with ready-made templates.

Factors to be considered before drawing a line graph are.

  • You need to know which set of data you are going to plot on the graph.
  • Give a title to your line graph.
  • Think of specific data you are going to set on each axis.
  • Select from different types of plotting from available templates.
  • Repeat the process in case of multiple data set representation.


Step 1:  Open EdrawMax

Open an online version of EdrawMax and sign up. The creation of an account is mandatory to access the free templates up to the creation of three projects.

EdrawMax online


Step 2:  Open Line Graphs

Find the Library pane on the left side of the interface, then tap and hold on a block shape. Carefully drag and drop it onto the canvas displayed on the right side of the screen. To adjust the shape’s size, use the green selection handles.

line graph EdrawMax online


Step 3:  Open Line

Click Line and select from different free templates given below. They are freely provided up to the creation of three projects. After that, you can shift to a premium version to access more great templates with added facilities.

line graph EdrawMax online


Tips on Reading and Creating Line Charts

Several tips on reading line charts successfully.

  • Look at the title
  • See the labeling of axes
  • Check out the emerging patterns to understand the trend
  • See the data values to get exact figures

Several tips on creating line charts.

  • Choose the specific title showing exact information
  • Take variable values in short terms to easily understand
  • Do not mess with too many lines over the graph. The maximum should be four lines to facilitate comparisons.


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