plot normal distribution plot on histogram of residuals

Question

Tania 2014-7-24

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/143159-plot-normal-distribution-plot-on-histogram-of-residuals

评论： Svenja Jetzinger 2024-4-24，9:16

采纳的回答： Wayne King

Does anyone know how to do that? Would be great if it could look like that:

Thank you!!!

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Answer 1

Wayne King 2014-7-24

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https://ww2.mathworks.cn/matlabcentral/answers/143159-plot-normal-distribution-plot-on-histogram-of-residuals#answer_146247

在 MATLAB Online 中打开

Here is one way, I'll use Data as the residuals

Data = randn(1000,1); %just making up some junk data
binWidth = 0.7; %This is the bin width, you have to decide what makes sense
% for you
binCtrs = -3:0.7:3; %Bin centers, same thing, it depends on your data
n=length(Data);
counts = hist(Data,binCtrs);
prob = counts / (n * binWidth);
H = bar(binCtrs,prob,'hist');
set(H,'facecolor',[0.5 0.5 0.5]);
% get the N(0,1) pdf on a finer grid
hold on;
x = -3:.1:3;
y = normpdf(x,0,1); %requires Statistics toolbox
plot(x,y,'k','linewidth',2);