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How to make two coordinate X axes in single plot

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Hello, I would like to have a single plot with 2 linked X axes with different scales. Currently, I have plot with 2 axes (first in time, second in samples) with significantly different scales, however with same number of points - see attached plot.
I want both axes to zoom simultaneously and proportionally, if I use linkaxes it changes scale on one of the axes, which is problem given the difference in scales. Can you recommend me any solution? Thanks

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Accepted Answer

Martin Hrabina
Martin Hrabina on 17 Mar 2016
Edited: Martin Hrabina on 17 Mar 2016
Okay, my problem was solved by creating quite simple auxiliary function. Detailed description can be found on
part Customizing the Zoom

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Dima Khaykin
Dima Khaykin on 21 Jul 2020
Can you please share your solution?
And another question, how to make plot show double axis with all the points?

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More Answers (1)

Walter Roberson
Walter Roberson on 16 Mar 2016
plotxx() ?

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Martin Hrabina
Martin Hrabina on 16 Mar 2016
Thanks for quick response! However I don't see this as a solution, since this, just like my original solution (without linkaxes) zooms only one X axis, the other stays as it was. I would like to see, when zoomed, sample range and time range at the same time.

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