Full Screen Figures in Matlab

Matlab's native figure command does not give you an option to make your figure full screen in 1 step. Instead first you have to find the screen resolution and then give your figure command the size of the screen.

First thing you want to do is:

screen_size = get(0, 'ScreenSize');

This will return a 4 element array: (left, bottom, width, height);
The ones we are interested are the "width" and "height".

Now we have the size of the screen, we can make our figure full screen:

f1 = figure(1);
set(f1, 'Position', [0 0 screen_size(3) screen_size(4) ] );

Now you should have a figure that is full screen.

Export figures in Matlab without displaying them

Assuming you have a lot of figures to plot, but you do not want to wait and see them in Matlab's figure window. There is a way you can export all of your figures without displaying them. This might also save you some time, since you are drawing them on the screen.

Here is how :

% Create a figure with visibility off
f = figure('Visible','off');
% Then do your plot
plot
% Finally export the plot as an image
print('-dpng', 'test.png');

You can also make this in a loop (Which is very probable if you have too many figures).
Do this

for i:1, n
f = figure('Visible','off');
plot
filename = sprintf('plot-%d',i);
print('-dpng', filename);
end

This will give you 'n' png images with your plots in it.

Replacing certain values in matlab vectors

In Matlab if you need to replace certain values with a single value you can simple do this,

>u(find(isnan(u))) = [];

Using this will find and remove all the NaN (Not a Number) values.

If you want to remove any value you can simple use find again,

>u(find(u=9999)) = [];

This will remove all the values of u = 9999.

Be aware that applying this will make your vector shorter if there is any value removed.