Chapter 8, Problem 8.1P

To determine

To write:

An expression that would display a random element from a cell array and a function that will receive one cell array as input argument and will display a random element from it.

Answer to Problem 8.1P

Solution:

The file is,

%MATLAB code to create a cell array and perform the operations.

%cell array file.

X = {41,'hiii', 1:4;'matlab', 10, 1:2:9}

%define a cell array.

X{randi(numel(X))}

%define the random element from the cell array.

Z = X'

%get the transpose of the cell array.

Z{randi(numel(Z))}

%define the random element from the above cell array.

%end of cell array file

%The cell array file should be placed in the same folder.

The function file is,

%MATLAB code to create a cell array and get the random element from the cell arary.

%function file.

function A = randomelement(cell)

A = cell{randi(numel(cell))};

end

%end of function file

%The function file should be placed in the same folder

Explanation of Solution

Consider the cell array is,

$\text{ A = {41,'hiii', 1:4;'matlab', 10, 1:2:9}}$

The random element from the above array is,

$\text{ans}=\text{‘hiii’}$

MATLAB Code:

clc

clear all

close all

%MATLAB code to create a cell array and perform the operations.

%cell array file.

X = {41,'hiii', 1:4;'matlab', 10, 1:2:9}

%define a cell array.

X{randi(numel(X))}

%define the random element from the cell array.

Z = X'

%get the transpose of the cell array.

Z{randi(numel(Z))}

%define the random element from the above cell array.

%end of cell array file

%The cell array file should be placed in the same folder.

%MATLAB code to create a cell array and get the random element from the cell arary.

%function file.

function A = randomelement(cell)

A = cell{randi(numel(cell))};

end

%end of function file

%The function file should be placed in the same folder

Save the MATLAB cell array file with name, chapter8_54793_8_1P.m and a function file with the name of randomelement.m in the current folder. Execute the function by typing the function name at the command window to generate output.

Result:

The results are,

Therefore, the results are stated above.