MATLAB: How to give legend to a plot as a series

legend

Suppose I have multiple graphs on a plot for a parameter varying from -4 to 0.25 with difference of 0.25 between adjacent values (which is about 18 in number)? Can I say like legend y. where y is a variable varying from -4 to 0.25?

Best Answer

Example data:

x = 1:10;
h = plot(x, x'*p)

Create legend:

legend(h, cellstr(num2str(p', '%.2f')));

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MATLAB: Comparing two separate for loops

Use intersect():

Z =[0.0024    0.0019    0.0015    0.0012    0.0010    0.0007    0.0005    0.0003    0.0002]
Y =[0.0031    0.0024    0.0019    0.0015    0.0012    0.0010    0.0007    0.0005    0.0003    0.0002]
X = intersect(Z, Y)

MATLAB: How to separate signals with diffrent frequencies

Add the following lines of code at the bottom of your code (after y=x+randn(size(x)).*sigma;):

ffty = fft(y);
ffty = abs(ffty(1:ceil(length(y)/2)));
ffty(ffty<100)=0;
[~,locs] = findpeaks(ffty);
freqs = (locs-1)/t(end)
signal_1 = sin(2*pi*t*freqs(1))+sin(2*pi*t*freqs(2))+sin(2*pi*t*freqs(3)); % 3-10
signal_2 = sin(2*pi*t*freqs(6))+sin(2*pi*t*freqs(7)); % 50-100
subplot(211), plot(t,signal_1)
subplot(212), plot(t,signal_2)

Best Answer

Related Solutions

MATLAB: Comparing two separate for loops

MATLAB: How to separate signals with diffrent frequencies

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