Pie Chart

Creating pie charts is a standard method for visualizing data distribution in categories. They are useful in displaying the proportional size of categories compared to the whole.

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Pie charts are circular graphs divided into slices to illustrate numerical proportions. Each slice represents a category’s contribution to the total (Eq. 1).

$$ \begin{equation} \% = \frac{x_i}{\sum_{i} x_i} \cdot 100 {\qquad [1] \qquad} \end{equation} $$

where $\%$ is the calculated value indicating what portion of the total each category represents, and $x_i$ is the numerical value or count of the $i$ category visualized in the pie chart.

Use the Pie Chart function by browsing in the top ribbon:

Plot $\rightarrow$ Pie Chart

Input

A data array with the values for each category. Only numerical data values (natural numbers) are accepted.

Configuration

Pie chart title	Type the chart title (optional).
Include/exclude columns	Select manually the columns that are going to be included in the chart: Use the buttons to move columns between the `Included Columns` and `Excluded Columns` list. Single-arrow buttons will move all selected columns and double-arrow buttons will move all columns.

Output

Graphical representation of the data in a pie chart format. The chart displays the proportion of each category visually.

Example

Input

In the left-hand spreadsheet of the tab import the data array that contains the categories [1] and their corresponding values [2].

Configuration

Select Plot $\rightarrow$ Pie Chart.
Type the Pie chart title [1].
Select the columns that are going to be included in the plot by clicking on the arrow buttons [4] and moving columns between the Excluded Columns [2] and Included Columns [3] lists.
Click on the Execute button [5] create the pie chart.

Output

The pie chart will be displayed in a new window.

Save Plot

By browsing the ribbon of the pie chart window, you can either save the pie chart in PNG [1] or JPEG [2] format or print it [3].

File $\rightarrow$ Save as $\rightarrow$ png… or jpeg…

File $\rightarrow$ Print

Format Plot

By browsing the ribbon of the pie chart window, you can also format the plot by clicking on the Tools option and then Properties:

Tools $\rightarrow$ Properties

The options available are for editing the plot title, its appearance as well as other options. A pop-up window is presented to perform the necessary changes.