Why is nothing is being plotted when I run this?

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Liam
Liam 2025-3-28
回答： Karanjot 2025-4-9
Ran in:
r = randn(1000, 1);
r_DCT = dct(r);
plot(r_DCT, 'o-')
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Liam
Liam 2025-3-28
Do you know why it doesnt plot on MATLAB itself?
Torsten
Torsten 2025-3-28
编辑：Torsten 2025-3-28
Do you know why it doesnt plot on MATLAB itself?
I can't see how MATLAB is configured on your computer. Don't you get an error message ? Maybe you don't have the Signal Processing Toolbox licenced and/or installed which is necessary for using "dct".

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回答（1 个）

Karanjot
Karanjot 2025-4-9
Hi Liam,
This is the default behaviour for MATLAB scripts or '.m' files. If you want the figure to show up in line with the code, you can consider using a MATLAB live script instead.

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