Matlab plot of a program

I want to plot some measured data and my question is why the y-axis is so small and how i could get it bigger so that i can see the data much clearer. ( I don't mean to get a wider range but just that the left side in the same range gets shown in a bigger window ) Thanks in advance.

[Edfred]

Thank you for your answer but now I have already found the mistake i made in the code :)

[Naman Kaushik]

Hi, you can use the 'axis equal' command to make the axes equal in ratio.