How to add axis limits to imagesc plot?

2017 11 16
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更新时间：2017 11 16
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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?

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Rik
Rik 2017-11-16

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

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imaging_tech
imaging_tech 2017-11-16
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
Rik 2017-11-16
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
imaging_tech 2017-11-16
Thanks for the help. I was able to fix by going through the documentation.
Rik
Rik 2017-11-16
You're welcome.
If my answer helped you, please mark it as accepted answer. If not, feel free to leave a comment

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