From: John Gar on
Ok, regarding the plot it's like a normal function and it's possible to use the normal plot function.
My doubt is about the axis of the dct. As I understand from the matlab help and so on, it supposed to be Frequency - Amplitude (X - Y).
But when I plot it it appear like Samples - Amplitude, how can I display it as Frequency x axis???

I'm really get confused..

Tanxs