====== MATLAB helpful hacks ======


==== Index Non-Empty Cells in Cell Array ====
  

http://www.mathworks.com/matlabcentral/answers/42283-index-non-empty-cells-in-cell-array 

<code matlab>
x = {1,[],[],[]}; find(~cellfun(@isempty,x)) </code>


==== Exiting loop (for / while -> pause) gracefully ====
(i.e., without "ctrl-C" abort)

For example, when paging thru trials:
<code matlab>
figure('Name','Plot trial','CurrentChar',' ');
for k = 1:length(trial),
...
	drawnow; pause;		
	if get(gcf,'CurrentChar')=='q', % pressing "q" will exist the loop, make sure focus is on the figure!
		break;
	end
	clf;
end
</code>


==== Finding indices between two vectors of start and end indices, using arrayfun ====

Assume we have two vectors, repeated_segments_start_idx, and repeated_segments_end_idx, and we want to find all indices between each pair. 

<code matlab>
idx = [repeated_segments_start_idx(segments2remove_idx):repeated_segments_end_idx(segments2remove_idx)] % DOES NOT WORK, OF COURSE!

idx = cell2mat(arrayfun(@colon,repeated_segments_start_idx,repeated_segments_end_idx,'UniformOutput',false)); % WORKS!

</code>


==== Maximize figure window ====
<code matlab>set(gcf,'units','normalized','outerposition',[0 0 1 1]);</code>



==== Plot an ''imagesc'' with transparent NaNs ====

<code matlab>
h = imagesc(X,Y,C);
set(h,'alphadata',~isnan(C));
</code>


==== Shifting colormaps ====
Sometimes the colormap plots are shifted after printing. To fix this:
- in Adobe Illustrator, click on the colormap, release clipping mask, and go to "Object", "Rasterize", in the "Resolution" part click on the "Use Document Raster Effects Resolution".

You have to do it for each of the colormaps.

==== Close all windows in Editor ====
<code matlab>closeNoPrompt(matlab.desktop.editor.getAll);</code>