How do I erase something I printed in the command window (to print something else instead)?

Hi,

Doesn't it sometimes bother you to let something run for hours and not see the progress, so that all you've got is to believe the 'busy' status of MATLAB?

Well,then it could be very friendly to display completion percentage. But all that i know is to fprintf something and never erase it. Now if i have many tasks running i'd like to know their status without having to type a list of percentages on the screen. For that i wanna know how to delete characters from the command window.

Thnx!

Answer 1

[Fangjun Jiang]

You could use waitbar(). It's much nicer.

If you really want to erase what you've already printed, use

fprintf('\b')

For example,

fprintf('%%43');fprintf('\b\b\b');fprintf('%%45')

[Daniel]

Thnx for the answer. The waitbar is indeed a nice option :)

Answer 2

[Friedrich]

Hi,

you could use the clc command to clear the whole command window:

http://www.mathworks.com/help/releases/R2011a/techdoc/ref/clc.html

[Daniel]

Alas! But the whole point is to keep the text on screen.

For example:

# Program intro msg

# Main parameters shown

# Process 1 . . . Done. (say we had it throug with process 1)

# Process 2 . . . 43%

without having to print:

1%

2%

3%

.

.

.

N%

Answer 3

[Bjorn Gustavsson]

If you want something at the command-line you could also use:

http://www.mathworks.co.uk/matlabcentral/fileexchange/21887-progress-meter-for-execution-of-tasksloops

It is a nice complement to waitbar.