pie

Create a pie chart of vector X.

X = [1 3 0.5 2.5 2];
pie(X)

Offset the second and fourth pie slices by setting the corresponding explode elements to 1.

explode = [0 1 0 1 0];
pie(X,explode)

Create a pie chart of vector X and label the slices.

X = 1:3;
labels = {'Taxes','Expenses','Profit'};
pie(X,labels)

Create a labeled pie chart, and then modify the color and font size of the text labels.

X = 1:3;
labels = {'Taxes','Expenses','Profit'};
p = pie(X,labels)

p = 
  1×6 graphics array:

    Patch    Text     Patch    Text     Patch    Text 

Get the text object for the label 'Profit'. Change its color and font size. Use dot notation to set properties.

t = p(6);
t.BackgroundColor = 'cyan';
t.EdgeColor = 'red';
t.FontSize = 14;

Create a pie chart, and specify a format expression to display each label with three digits after the decimal point. To include a percent sign in the labels, specify '%%' at the end of the expression.

X = [1/3 2/3];
pie(X,'%.3f%%')

Create a pie chart of vector X where the sum of the elements is less than 1.

X = [0.19 0.22 0.41];
pie(X)

pie draws a partial pie because the sum of the elements is less than 1.

Create vectors y2010 and y2011, that contain financial data for two years. Then create a cell array containing the labels for the values.

y2010 = [50 0 100 95];
y2011 = [65 22 97 120];
labels = {'Investments','Cash','Operations','Sales'};

Create a 1-by-2 tiled chart layout, and display two pie charts that each have a title. Then display a shared legend in the east tile of the layout. To do this, call the legend function with a return argument to store the legend object. Then move the legend to the east tile by setting the Layout.Tile property to 'east'.

t = tiledlayout(1,2,'TileSpacing','compact');

% Create pie charts
ax1 = nexttile;
pie(ax1,y2010)
title('2010')

ax2 = nexttile;
pie(ax2,y2011)
title('2011')

% Create legend
lgd = legend(labels);
lgd.Layout.Tile = 'east';

Plot a categorical pie chart with offset slices corresponding to categories.

X = categorical({'North','South','North','East','South','West'});
explode = {'North','South'};
pie(X,explode)

Now, use a logical vector to offset the same slices.

explode = [0 1 1 0];
pie(X,explode)

Plot a categorical pie chart without any offset slices and label the slices. When X is of data type categorical you must specify the input argument explode. To specify labels without any offset slices, specify explode as an empty cell array, and labels as the labels.

X = categorical({'North','South','North','East','South','West'});
explode = {};
labels = {'E','N','S','W'};
pie(X,explode,labels)

Now, offset a slice and label all slices.

X = categorical({'North','South','North','East','South','West'});
explode = {'West'};
labels = {'E','N','S','W'};
pie(X,explode,labels)

Define x and create a pie chart.

x = [1 2 3];
pie(x)

Specify the description for each pie slice in the cell array labels. Specify the descriptions in the order that you specified the data in x.

labels = ["Product A","Product B","Product C"];

Display a horizontal legend below the pie chart. Pass the descriptions contained in labels to the legend function. Set the legend's Location property to "southoutside" and its Orientation property to "horizontal".

legend(labels,"Location","southoutside","Orientation","horizontal")