How to fit a normal distribution curve to a bar graph?

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parslee
parslee 2022-12-26
编辑： Matt J 2022-12-26
I have a bar plot and I tried fitting a Gaussian distribution curve using normpdf, but it's not working. What am I doing wrong?
lx = linspace(1,32,32);
figure(1)
hold on
bar(diftn)
plot(lx,normpdf(diftn))
  1 个评论
parslee
parslee 2022-12-26
编辑：parslee 2022-12-26
diftn =
0.0401
0.0422
0.0755
0.0914
0.1044
0.1358
0.1955
0.2271
0.2311
0.2337
0.3979
0.3490
0.4389
0.4626
0.7340
1.0000
1.0000
0.7340
0.4626
0.4389
0.3490
0.3979
0.2337
0.2311
0.2271
0.1955
0.1358
0.1044
0.0914
0.0755
0.0422
0.0401

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采纳的回答

Matt J
Matt J 2022-12-26
编辑：Matt J 2022-12-26
Ran in:
One way,
load diftn
x=(1:numel(diftn))';
fobj=fit(x,diftn,'gauss1');
plot(fobj,x,diftn)

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