How to plot a mixed density function?

2020 4 5
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更新时间：2020 4 7
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Hi
So, lets say I get 10000 random numbers:
-5000 from normal distribution with mean = 1 and sigma = 1
-5000 from normal distribution with mean = 4 and sigma = 1
Now I have to plot density function.
I know how to plot single density function, not a mix.
Can you help me?
Thanks,
Lukas

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Jeff Miller
Jeff Miller 2020-4-6

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x=-6:.01:10;
pdf1 = normpdf(x,1,1);
pdf2 = normpdf(x,4,1);
mixpdf = 0.5*pdf1 + 0.5*pdf2;
figure;
plot(x,mixpdf);

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