Typo in the nufft (R2024a) documentation?

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Ana Egatz-Gomez 2024-3-10

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评论： Ana Egatz-Gomez 2024-3-10

The Mathlab documentation is so well developed, instructive and helpful. I am trying to learn and use the nufft, reproducing the documentation examples one by one.

Is there a typo in the section "Nonuniform Sample Points With Time and Frequency Scaling"?

Should the graph following the text on the documentation show X(t) instead of S(t)?

S = 2*sin(2*pi*0.4*t) + sin(2*pi*2*t); % Signal with peak frequencies at 0.4 Hz and 2 Hz

X = S + rand(size(t));

plot(t,S)

xlabel("t (seconds)")

ylabel("X(t)")

Ref:https://www.mathworks.com/help/matlab/ref/double.nufft.html#mw_4af840be-4ac1-4dbe-9083-5ba2d9021e53

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Answer 1

Paul 2024-3-10

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Hi Ana,

Yes, either the plot command was intended for X or the ylabel is wrong. In the context of that example, I suspect they meant to have

plot(t,X)

But, having said that, the previous example on that page also plots S (without any labels), so maybe the mean to always plot the uncorrupted signal.

If you click on a star a the bottom of the page under "How useful was this information?" I'm pretty sure you'll get a pop-up box in which you can provide further feedback about that doc page.