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1. What is a Line Chart?
A line chart is also known as a line graph is a type of chart used to visualize the value of something over time. For example, a finance department may plot the change in the amount of revenue the company makes over time or Human Resources may use it to track employee satisfaction.
A line chart consists of a horizontal x-axis and a vertical y-axis.
Most line graphs only deal with positive number values, so these axes typically intersect near the bottom of the y-axis and the left end of the x-axis. The point at which the axes intersect is always (0, 0). Each axis is labelled with a data type. For example, the x-axis could be days, weeks, quarters, or years, while the y-axis shows revenue in euros
Data points are plotted and connected by a line in a “dot-to-dot” fashion.
The line graph is a powerful visual tool for marketing, finance, and other areas. It can be used in any function involving a correlation between two numerical values. If two or more lines are on the chart, it can be used as a comparison between them.
2. How to add and configure a line chart.
The following steps explain the data configuration of the bar chart:
- Drag and drop the line chart icon from the toolbox into the design panel.
- Resize the widget as required.
- Select your chart and in the properties section, you can name the chart and change any settings you wish.
- You can then select assign data and select your data source.
Please note that before adding a Grid component you will need to define a data source.
- Drag and drop the relevant columns into the value, column and row section.
3. Properties menu options
It is recommended that you check out the properties menu options to format your line chart in the way that best suits the data you are depicting.
The following screenshots show the various properties menu options based on the column chart section.
Naming the Component
Title – This allows you to set a name for the component
Subtitle – This allows you to set a subtitle for the component.
Description – This allows you to show additional information in the form of a tooltip. It’s beneficial as it gives the user additional information without affecting the visualization.
Icon – Sintel Forms and Sintel BI both have Font Awesome embedded. This enables you to add icons to the components.
Title alignment – This determines the appearance and orientation of the component’s title. You can choose to align your text left, centre or right.
Look & Feel
Elevated Border – You can switch the elevated border on and off of your component depending on what you like best.
Background Colour – You can change the background colour of the component to any colour you like. If you have specific brand guidelines you are adhering to you can paste in the HEX code directly.
Show legend – A legend is an area of a chart describing each of the parts of the chart. You can switch on and off the visibility of the legend.
Legend position – You can choose the position in which the legend appears in relation to the chart. The options are Auto, Top, Left, Bottom and Right.
Legend shape – You can choose the shape of the bullet points of the legend. Your options are SeriesType (Which mimics the kind of chart you have added), Circle, Pentagon, Triangle and Rectangle,
Show value labels – You can switch on and off the visibility of the value labels for each individual column.
If you choose for the labels to become visible you can also choose the colour of those labels.
You can also decide the rotation of these labels: -90, -45, 0, 45, 90
Show empty values – You can choose whether or not to show empty values.
Show zero values – You can choose whether or not to show 0 values on your table.
Invert axes – Shows the X & Y axes in reverse
Show value axis – You can choose to show or hide the value axis on your chart
Value axis title – You can add a title to the value axis for example: ‘Number of Calls’.
Value axis min – You can set a minimum value at which you would like to start displaying data on a chart. For example, you might just want to display the weeks in which you had over 16 abandoned calls to your helpline.
Value axis max – Similarly you can set a maximum value at which you would like to display data on a chart.
Axis type – You can set your axis to be: double, logarithmic or category.
If you set it to double you also have the option to enable Smart labels which when enabled abbreviate the numeric axis labels.
You can also choose to show or hide the category axis.
If you set your axis type to be logarithmic or category you have the option to show or hide the category axis.
Show tooltip – The tooltip will appear when you hover over one of the columns and it will show you the value for that column. You can choose to show or hide this column.
Within the series section, you can change the title that appears at the bottom of your chart, you can change the colour of your chart and you can also change the chart type.
Once you have added your line chart component and assigned data to it, make sure you save your work.
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