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plot gaussian and standard deviation on my histogram

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Hi everyone,
I have this code and have plotted the histogram and now want to have gaussian and standard deviation.
can anyone help me please?
figure('Name','A3{1}.BMd_Img_o_part1')
edges= linspace(0,255,21);
histogram(image1, 'BinEdges',edges,'normalization','pdf')

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Accepted Answer

Star Strider
Star Strider on 8 Sep 2020
I would use normfit and normpdf, although there are also other options:
image1 = 42*randn(1,1000)+42*3; % Create Data
figure('Name','A3{1}.BMd_Img_o_part1')
edges= linspace(0,255,21);
[muHat,sgHat] = normfit(image1);
pdfplot = normpdf(edges, muHat, sgHat);
figure
histogram(image1, 'BinEdges',edges,'normalization','pdf')
hold on
plot(edges, pdfplot, '-r', 'LineWidth',2)
hold off
.

  14 Comments

Star Strider
Star Strider on 9 Sep 2020
I do not understand what threw the error.
Please use the code I already wrote to plot the normal distribution on the histogram.
Fatemeh Shomal Zadeh
Fatemeh Shomal Zadeh on 9 Sep 2020
Thank you so much , I do really appreciate you efforts.

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