Question

I have the plot shown below:

Now the problem is that I need to make the fonts large at the same time, I need to make them clear (disjoint). I do not care about the ratio of spaces between ticks. one solution is to have the spaces equidistant so that I can read the tick labels carefully. Any Idea how i can do that?

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Following Yoda’s comments I surely do get a better look.
I do not know how to get the aspect ratio but I use the following code

    figure('Units', 'pixels', ...
    'Position', [100 100 500 375]);

The font size is 16 and I set the Axis as:

    axis([-1 1 0 100])

Answer 1

It would be more helpful if you also told us what the aspect ratio is and what font-size you’re using. If I try to reproduce it, I get a reasonable looking plot where the labels are easy to read at a fontsize of 16 or 18.

Now, moving the tick marks around or intentionally labeling in a different position can lead to lot more problems in interpretation (for one, the data point will no longer align with the tick) and I wouldn’t suggest that approach. In your case however, is 0.33 equivalent to 1/3? If so, you could use 1/2 and 1/3 and save some space. You can set it with

set(gca,'xtick',[-1,-0.5,-0.33,0,0.33,0.5,1],...
    'xticklabel',{'-1','-1/2','-1/3','0','1/3','1/2','1'},

and it should look like this: