Scientific notation values to the y axis label based on original data

Hey! I would like to automatically have the y-axis label updated based on the input values for the variable y. In this case I would like the line "-5" in the y-axis label replaced by "10^-5" (with the -5 shown as an exponent).

Thanks in advance for any help!

if true
  % code
x=[1:3];
y=[.00002 .00004 .00006];
figure;
plot(x,y);
ylabexp=floor(log10(y(1)));
ylab = {'\uparrow';'\epsilon /';ylabexp;'M^{-1}'};
yh = ylabel(ylab);
set(yh,'rot',0)
ylabh2 = get(gca,'YLabel');
set(ylabh2,'Position',get(ylabh2,'Position') - [.1 0 0])
end

[Reid]

sorry, I'm new to matlab and not sure how to modify the code into appropriate spacing

[dpb]

Simplest is to insert to blank spaces in front of the first line of code in a new paragraph (ie, with a blank line in front of code)

[Star Strider]

I tried to run your code but couldn’t.

1. PLEASE format your code — use the ‘[{}Code]’ button
2. what is ‘yval’?
3. Y not use semilogy?

[Reid]

Thanks for the help with the code button. I'm still getting "-5" in the y axis label and not "10^-5"

Attached is what i'm seeing when i run the code.

Answer 1

[Star Strider]

Change your ylabexp line to:

ylabexp=sprintf('10^{%d}',floor(log10(y(1))));

If I understand your question correctly, that should do what you want.

Answer 2

[Reid]

Thanks!

[Star Strider]

My pleasure!