How to expand a waveform on x-axis?

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Susan on 26 Aug 2022
Commented: Susan on 27 Aug 2022
Hi All,
I want to expand a waveform on the x-axis. Specificlly, in the following fig, I would like to expand a waveform in such a way that the waveform from with X = 0:1 sec is expanded from x = 0:2.5. In other words, I would like to plot the waveform such that the duration from 0 to 1 sec be plotted as five big boxes, i.e., each grided box. Any suggestions would be appreciated.
Susan on 26 Aug 2022
Edited: Susan on 26 Aug 2022
@Walter Roberson Thanks for your response, and sorry if the question was not straightforward. I want to be able to plot the figure with having control over the griding space. In the above Fig, I like to have 25 small boxes from 0:1. In other words, I want to say that 25 small boxes are equal to 1 second and be able to to specify the spacing between grid lines, if it makes sense.

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Accepted Answer

Walter Roberson
Walter Roberson on 26 Aug 2022
MATLAB only gives control over major ticks, with it deciding minor ticks automatically. Grid lines are drawn at the minor tick positions.
So if you want grid lines at specific distance, you can set those positions as major ticks in xticks. Or you can draw the lines yourself.
Your current range is 0 to 5, so 0 to 1 is 1/5 of the space. You want 25 boxes in that space so each will take 1/25 of 1/5 = 1/125 of the width. If your axes is 750 pixels wide that would make the boxes 6 pixels apart. I don't think I see the benefit of drawing boxes that fine.
Susan on 27 Aug 2022
@Walter Roberson Thank you so much for your help. It works perfectly!

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