How to add axis limits to imagesc plot?

I have created a 13xN matrix where N = ~300K+ columns. The matrix has been formed by 13 different vectors each of which has been processed separately and then normalized individually between 0 & 1. A simple imagesc (see fig1.jpg) plot of the matrix shows me the colour distribution but now I want to add some axis labels and ticks and when I attempt to do that by using the axis command, I get solid colorbars (see fig2.jpg) instead of the distributed colours as I would see in the default imagesc implementation.

How do I add axis ticks and limits while still maintaining the imagesc plot?

Answer 1

[Rik]

You overlooked the exponent. The x-axis stretches to 3e5, not just 30.

[imaging_tech]

I understand. The current x axis represents about 300k+ columns and I would like to instead display time on the axis from 0 to 30 seconds. What could I do to achieve that?

[Rik]

You can hack it by setting the xticklabels manually to specified xticks.

If this page doesn't help, just let me know and I'll provide some code.

[imaging_tech]

Thanks for the help. I was able to fix by going through the documentation.

[Rik]

You're welcome.

If my answer helped you, please mark it as accepted answer. If not, feel free to leave a comment