Issue when removing scientific notation in Matlab plot

I am trying to configure the yticklabels to appear on the graph in a non scientific notation format. My original plot looks like:

In order to remove the scientific notation, I have tried:

set(gca,'YTickLabel',num2str(get(gca,'YTick').'))

a method suggested in the following link: http://uk.mathworks.com/matlabcentral/newsreader/view_thread/279727

and I get the following result:

As it can be seen here, this does not make any sense as the y axis values should increase.

I also tried the following code:

yt=get(gca,'YTick');
set(gca,'YTickLabel',sprintf('%.1f\n',yt))

a method suggested in the following link: http://uk.mathworks.com/matlabcentral/answers/103188-how-do-i-format-tick-labels

and I get the following result:

As it can be seen, this does not make sense either. The top label is missing.

I cannot find the way to get it right. Any help would be appreciated.

[Nikhil Sreekumar]

Which version of MATLAB are you using and can you attach the data used?