MATLAB Switch Statement

MATLAB Conditional Statements

The switch block conditionally executes a group of statements from multiple choices, each included in a case statement.

The switch module will test each case until one of them is valid.

• For numberseq(case_expression,switch_expression).

• For stringsstrcmp(case_expression,switch_expression).

• For supported objectseq(case_expression,switch_expression).

• For the cell case_expression, at least one element of the cell matches the switch_expression, as defined above for numbers, strings, and objects.

When the case is true, MATLAB executes the corresponding statements and then exits the switch block.

otherwiseBlocks are optional and are executed only when no cases exist.

Syntax

The syntax of the switch statement in MATLAB is-

switch <switch_expression>
　　　case <case_expression>
　　　　　　<statements>
　　　case <case_expression>
　　　　　　<statements>
　　　　　　...
　　　　　　...
　　　otherwise
　　　　　　<statements>
end

Online Example

Create a script file and enter the following code-

grade = 'B';
　　　switch(grade)
　　　case 'A'　
　　　　　　fprintf('Excellent!\n');
　　　case 'B'　
　　　　　　fprintf('Well done\n');
　　　case 'C'　
　　　　　　fprintf('Well done\n');
　　　case 'D'
　　　　　　fprintf('You passed\n');
　　　case 'F'　
　　　　　　fprintf('Better try again\n');
　　　otherwise
　　　　　　fprintf('Invalid grade\n');
　　　end

Well done

MATLAB Conditional Statements