pareto

Creates a pareto plot and returns the handle of the graphics objects.

Syntax

pareto(y)

pareto(y, x)

pareto(hAxes, ...)

h = pareto(...)

Inputs

y
Y values of the dataset. These values are sorted in decreasing order and presented as a bar chart.
Type: double | integer
Dimension: vector | matrix
x
X values of the dataset. If omitted, range 1:length(y) will be used instead.
Type: double | integer | string
Dimension: vector | matrix | cell
hAxes
Axis handle. .
Type: double
Dimension: scalar

Outputs

h
A 2-element vector. The first value is the handle of the bar chart. The second value is the handle of the Cumulative curve.

Examples

Simple pareto example:
clf;
y = [50 100 25 84 55 10];
pareto(y);
Figure 1. Pareto plot


Set x values:
clf;
y = [50 100 25 84 55 10];
x = 10:10:60;
pareto(y, x);
Figure 2. Numeric X values


Set x values as a cell of strings:
clf;
y = [50 120 10 100 50 10];
x = {'A', 'B', 'C', 'D', 'E', 'F'};
pareto(y, x);
Figure 3. String X values


Customize the bar chart and line style:
clf;
y = [5 8 2 7 7 6 15 12 13];
h = pareto(y);
set(h(1), 'barstyle', 3);
set(h(2), 'linestyle', '--');
Figure 4. Change bar and line style


Comments

If there is no axis, one is created first.

The pareto plot consists of a bar chart and a line. The bar chart, plotted on the left vertical axis, shows the frequency of occurencies (y) in descending order. The line, plotted on the right vertical axis, presents the cumulative percentage of the total number of occurances.

Note:

Only the values that contribute up to 95% (cumulative percentage) are shown in the plot.