workspace variable

My program stores data in a workspace variable. The variable is visible only when the program is done running. I was wondering if it's possible to see that workspace variable in the workspace window as the pgrogram is running and see it's content grow.

Answer 1

[Doug Hull]

You could put a pause statement or debug. MATLAB is not going to take the time to update the WS viewer. How long does your code take to run?

[Baba]

this one 10 minutes

[Baba]

so can i just pause the execution at any time? and then restart to continue?

[Walter Roberson]

A pause() statement with no argument will wait for keyboard input before resuming.

You can also use keyboard():

KEYBOARD, when placed in an M-file, stops execution of the file

and gives control to the user's keyboard. The special status is

indicated by a K appearing before the prompt. Variables may be

examined or changed - all MATLAB commands are valid. The keyboard

mode is terminated by executing the command RETURN (i.e. typing

the six letters R-E-T-U-R-N and pressing the return key). Control

returns to the invoking M-file.

Answer 2

[Image Analyst]

If your program takes 10 minutes to run, that variable probably gets changed a bazillion times. Maybe you can plot it. You can use a line plot if you keep track of every value that variable takes on, or maybe just use a bar chart or text label if you just want to show the latest value. Make sure you issue the "drawnow" command right after you update your plot or text with the new value(s).