MATLAB。 饼图标签

Question

I have a matrix X. In the first column there are 5 values which are integers from 0 to 4. In the second column there are values that I want to plot in a pie chart. How can I label the values in X(:,2) with the corresponding values from X(:,1) in the pie chart?

Answer 1

From what I understand this might do the trick:

clear all
clc

A = [0 3;1 1;2 5;3 6;4 5]; %// Generate dummy data

Labels = sprintfc('Row%d',A(:,1)+1) %// Generate appropriate labels and store in a cell array

Labels looks like this:

Labels = 

    'Row1'
    'Row2'
    'Row3'
    'Row4'
    'Row5'

and the pie chart:

pie(A(:,2),Labels)

Is this what you meant? You might want to take a look here for more info about pie charts and ways in which to customize labels. For instance sprintf can be used to produce more complex labels. If you would like to know how please ask!