Why is nothing is being plotted when I run this?

r = randn(1000, 1);
r_DCT = dct(r);
plot(r_DCT, 'o-')

[Torsten]

Here it works:

r = randn(1000, 1);
r_DCT = dct(r);
plot(r_DCT, 'o-')

[Liam]

Do you know why it doesnt plot on MATLAB itself?

[Torsten]

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".

Answer 1

[Karanjot]

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.