how to get outputs from normal distribution fitdist to display in my plot title using sprintf

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Kay
Kay 2023-2-13
评论： Kay 2023-2-13
trying to use sprintf to plot the values of mu and sigma in my title for my histogram plot. Mu and sigma are the outputs from the pd=fitdist(data,'normal'). Any suggestions appreciated! Thanks!
this is what I have;
histfit(data,20)
pd = fitdist(data,'normal')
xlabel('Energy in eV')
ylabel('Count Rate')

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Image Analyst
Image Analyst 2023-2-13
编辑：Image Analyst 2023-2-13
Ran in:
Try this:
data = randn(5000, 1);
histfit(data,20)
pd = fitdist(data,'normal')
pd =
NormalDistribution Normal distribution mu = 0.0209271 [-0.00653814, 0.0483923] sigma = 0.990638 [0.971596, 1.01045]
fontSize = 18;
grid on;
caption = sprintf('Mu = %f. Sigma = %f', pd.mu, pd.sigma);
title(caption, 'FontSize', fontSize)
xlabel('Energy in eV', 'FontSize', fontSize)
ylabel('Count Rate', 'FontSize', fontSize)
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Image Analyst
Image Analyst 2023-2-13
You forgot to attach 'data01.txt' so I can't run your code.
Line 9 is
title('X-ray detection events')
and would not throw that error because nothing is being indexed, unless you have called some variable "title" in some other script and it's still hanging around in the base workspace. Try calling
clear all
as the first line of your script to get rid of any prior variables you don't need.
Kay
Kay 2023-2-13
Oh sorry about that! I think i figured it out, I restarted my computer and that seemed to help. I'll remember the clear all for next time. I think I need to do some updates to my computer, matlab has been glitchy for a few days. Thanks again for your help!

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