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

18 次查看（过去 30 天）
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

请先登录，再进行评论。

请先登录，再回答此问题。

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)

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 2-D and 3-D Plots 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by