Plot and scale very small numbers

Hi all,

I am interested in ploting the following y-axis (from 10^-16 to 10^-11) in Matlab:

I use the following codes, but I did not get the nicely spaced y-axis as above. What changes should I amend to the codes to get the above y-axis for my y-data?

figure
plot(x,y,'o','r')
ylim([10^-17 10^-10])
yticks([10^-16 10^-15 10^-14 10^-13 10^-12 10^-11])

Thank you for your suggestions.

Answer 1

[Adam Danz]

You need to make the yscale log.

figure; 
h = axes; 
h.YScale = 'log';    % <------- or set(h, 'YScale', 'log')
ylim([10^-17 10^-10])
yticks([10^-16 10^-15 10^-14 10^-13 10^-12 10^-11]) % (not needed)

[madhan ravi]

learn4fun's answer moved here for consistency

Hi Adam,

Thank you for your suggestion :)

[Swati Sarangi]

Hi Adam ,

I am unable to implement your code in my machine. Is there any alternative to it?

[Rik]

Why are you unable to implement this? What release are you using?

[Steven Lord]

Another way to get a linear X axis and a logarithmic Y axis is to use semilogy.

x = 1:6;
y = 10.^-(10+x);
semilogy(x, y)