MATLAB Programming

Debugging
Function
whos
size
keyboard
return
warning
error
lasterr
lasterror
lastwarn
Description
List variables in the workspace.
Show array dimensions.
Interrupt program execution and allow input from
keyboard.
Resume execution following a keyboard
interruption.
Display specified warning message.
Display specified error message.
Return error message that was last issued.
Return last error message and related information.
Return warning message that was last issued.
The MATLAB Graphical Debugger
Learn to use the MATLAB graphical debugger. You can view the function
and its calling functions as you debug, set and clear breakpoints, single-step
through the program, step into or over called functions, control visibility into
all workspaces, and find and replace strings in your files.
Start out by opening the file you want to debug using File > Open or the
open function. Use the debugging functions available on the toolbar and
pull-down menus to set breakpoints, run or step through the program, and
examine variables.
For more information: See Debugging M-Files and Using Debugging
Features in the MATLAB Desktop Tools and Development Environment
documentation.
AQuickWaytoExamineVariables
To see the value of a variable from the Editor/Debugger window, hold the
mousecursoroverthevariablenameforasecondortwo. Youwillseethe
value of the selected variable displayed.
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