MATLAB Answers

What do these different colors of stem plot indicates?

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Vishwaraj Manur
Vishwaraj Manur on 14 Nov 2019
Commented: Vishwaraj Manur on 29 Mar 2020
This is the stem plot for a complex value matrix of size 512x40. What does these different coluors indicates ?
How to unayse this stem diagrams?
What does the spacing of stem lines indicates ?
test.png

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Muhammad Usman
Muhammad Usman on 14 Nov 2019
I hope you can get answers from the given below code.
clear all;close all; clc
fig = figure;
x = linspace(1,3);
y = sin(x);
vectors = [complex(x, y)];
stem(real(vectors),imag(vectors),'Color',[1 0 0])
hold on;

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Answers (1)

Walter Roberson
Walter Roberson on 14 Nov 2019
complex value matrix of size 512x40
stem() applied to real() and imag() of that is going to create 40 different stem plots. The colors of those plots are chosen automatically if you do not use the Color parameter.

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Vishwaraj Manur
Vishwaraj Manur on 29 Mar 2020
What does STEM plot in MATLAB indicates? what does it indicates if stem( FFT(x(t))) of a signal x(t) is drawn ? What is its importance?

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