How can I include a superscript in my x-label

I'm having a problem with labeling my x-axis with powers of 10. For example, I have 8 sample collections with concentrations ranging from 10^-3 - 10^-9.

[Adam Danz]

How are you creating your plot? You can manipulate the notation in most of the plots but we need more detail. What kind of tick marks would you like?

[Anthony Arteaga]

x=0:10^-3:10^-4:10^-5:10^-6:10^-7:10^-8:10^-9;

y=[3198.8 2222.8 2798.8 2728.8 3671 4408.5 4303.5 4485.3];

bar(x,y)

This is what I have. Sorry if it sucks I'm brand new to MATLAB.

I get this error message:

Error using bar (line 172)

X must be same length as Y.

Error in bargraph (line 3)

bar(x,y)

[Adam Danz]

Is this your question (about the error message) or is this a different question that your original one above?

[Anthony Arteaga]

No its just extra information I added. I just need help with my x-axis labeling.

[Adam Danz]

This: x=0:10^-3:10^-4:10^-5:10^-6:10^-7:10^-8:10^-9;

is not anything meaningful. It results in x=0.

Is this more like what you're looking for (I doubt it)?

x=[0, 10^-3, 10^-4, 10^-5, 10^-6, 10^-7, 10^-8, 10^-9];
y=[3198.8 2222.8 2798.8 2728.8 3671 4408.5 4303.5 4485.3];
bar(x,y)

ax = gca(); 
ax.XScale = 'log'

"I just need help with my x-axis labeling. "

You haven't explained what you need help with - what's wrong with the labels? How would you like to change them? By "labels" I think you mean X-Tick labels.

Answer 1

[Star Strider]

The easiest approach is likely to use semilogx (or if appropriate, loglog) to plot your data.

EDIT —

I am not sure what tick labels you want.

Try this:

y=[3198.8 2222.8 2798.8 2728.8 3671 4408.5 4303.5 4485.3];

figure
bar(y)
Ax = gca;
xlbl = sprintfc('10^{%2d}', -(3:9));
Ax.XTickLabel = [{'0'} xlbl];
Ax.FontSize = 9;

The tick labels can easily be changed when I understand what you want them to be.