Debugging and Analysis

Diagnose problems, check syntax and release compatibility

As you work in the Editor and Live Editor, MATLAB^® automatically identifies potential coding problems. Debugging features help you diagnose specific issues. Additionally, you can generate reports that help you update your code when you upgrade to a newer MATLAB release.

Tools

Code Analyzer	Identify and address code issues (Since R2022b)
Code Compatibility Analyzer	Identify and address compatibility issues against current version of MATLAB (Since R2022a)

Functions

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Debugging

`dbclear`	Remove breakpoints
`dbcont`	Resume execution
`dbdown`	Reverse `dbup` workspace shift
`dbquit`	Quit debug mode
`dbstack`	Function call stack
`dbstatus`	List all breakpoints
`dbstep`	Execute next executable line from current breakpoint
`dbstop`	Set breakpoints for debugging
`dbtype`	Display file with line numbers
`dbup`	Shift current workspace to workspace of caller in debug mode
`keyboard`	Give control to keyboard
`echo`	Display statements during function or script execution

Syntax Checking

`codeIssues`	Identify code issues in files (Since R2022b)
`fix`	Fix code issues (Since R2023a)
`export`	Write code issues to file (Since R2023b)
`checkcode`	Check MATLAB code files for possible problems
`mlintrpt`	Run `checkcode` for file or folder

Release Compatibility

`codeCompatibilityReport`	Create code compatibility report
`analyzeCodeCompatibility`	Create code compatibility analysis results

Code Analyzer Configuration

`matlab.codeanalysis.validateConfiguration`	Validate Code Analyzer configuration file (Since R2023a)
`matlab.codeanalysis.refreshConfiguration`	Refresh cached Code Analyzer configuration (Since R2023a)

Topics

Debugging

Debug MATLAB Code Files

Diagnose problems in MATLAB code files using different debugging methods.
- Set Breakpoints
- Examine Values While Debugging
Editor/Debugger Preferences
Use Editor/Debugger preferences to customize the Editor.

Syntax Checking

Check Syntax as You Type
Use syntax highlighting, delimiter matching, and code suggestions and completions to write commands faster and avoid syntax errors.
Check Code for Errors and Warnings Using the Code Analyzer
Use the MATLAB Code Analyzer to check your code for coding problems automatically.
MATLAB Code Analyzer Report
Generate a report that identifies potential errors, problems, and opportunities for improvement in your code.
Code Analyzer Preferences
Set Code Analyzer preferences to enable or disable Code Analyzer features and specify message indicator preferences.
Configure Code Analyzer
Configure Code Analyzer messages and add custom checks.
Index of Code Analyzer Checks
This topic contains a listing of built-in MATLAB Code Analyzer checks which you can modify to meet your own custom coding standards.

Release Compatibility

MATLAB Code Compatibility Analyzer
Generate a report to identify potential compatibility issues in your code when you upgrade to a newer MATLAB release.

Code Generation

Code Generation Readiness Tool
The code generation readiness tool screens MATLAB code for features and functions that code generation does not support.

Related Information

Programming: Structuring Code (MathWorks Teaching Resources)