Printing to screen with fprintf. Reclaim back the printed result after clearing the screen.

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Giorgos Papakonstantinou 2013-8-12

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Suppose I use the fprintf as follows:

name='John';
height=1.8;
age=27;
fprintf('Name.............%s\n\n', name);
fprintf('Height...........%.2f m\n',height);
fprintf('Age..............%d \n',age);

Is there any way to reclaim the printed result after clearing the screen with:

clc

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Cedric 2013-8-12

在 MATLAB Online 中打开

Type

doc diary

in the command window. However, why would you reclaim printed results? The diary is usually used as a logging mechanism I would say, and not for reclaiming previous output to command window on a regular basis. What we need in general is keeping data, which are not erased when you execute CLC.

Giorgos Papakonstantinou 2013-8-12

Well If the printed results have the form of a report I find it useful to print the results whenever you want. In my case I have a function inside which I use fprint to build a "report". So when I call this function apart from the computational part it also makes report that is printed in the command window.

If find it useful if I can reclaim the printed results after clearing the screen, provided that the data still exist in the workspace

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Answer 1

Walter Roberson 2013-8-13

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The results of fprintf() to the screen do not exist in the workspace, and are not obtainable through normal graphics routines.

However, I have not researched the advanced editor and command line capabilities that were added a couple of releases ago, so I hesitate to give a blanket "no". Maybe there would be a way to request a copy of what is in the command window just before you issue the clc(), and then re-output it after you issue the clc(). I'd be relatively sure you could not have this happen automatically whenever a clc() was issued (not without overriding the normal clc)

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Giorgos Papakonstantinou 2013-8-13

I was also wondering if there is a compromising solution. Maybe if I print to text file.Then viewing the file from within the command line. Can this be implemented?

Walter Roberson 2013-8-13

Yes, you could probably build a function for that. You might also want to consider writing the output to a scrollable GUI element such as uicontrol('style', 'edit', 'enable', 'disable') (notice that is not 'enable', 'off')

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