find minimum y-value and x-value

I have attached files

I have made a code that plots the values.

And I need to find a x -value when y-vale is at minimum value.

Also when I ploted, the significant figures in the plotting graph is not long enough that I can not compare the value

for instance, (using data crusor)

for x= 2, y= 0.311(322), for x=4, y= 0.311(433)

the value in bracket is omitted so I can not compare values.

Answer 1

[Walter Roberson]

[miny, minyidx] = min(y);
minx = x(minyidx);

If you want the data cursor to show more digits then you can create a custom data cursor callback.

http://blogs.mathworks.com/videos/2011/02/25/creating-a-custom-data-cursor/

http://www.mathworks.com/matlabcentral/answers/68079-how-to-add-additional-info-to-the-data-cursor

[Nickolaus Hopper]

Thank you so much Mr. Robertson, you have no idea how much of a help your post has been not only for me but for many others as well. Again thank you very much!!