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how to fit gaussian model and plot it

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michael scheinfeild
michael scheinfeild on 23 Feb 2015
Answered: zepp on 23 Feb 2015
hi i have vector of 1000 numbers i want to fit Gaussian model i use
[n,cent]=hist(x,50)
then
bs = glmfit(cent,n,'normal');
then i want to plot the fit yfit = glmval(bs,cent_s); failed Error using glmval (line 64) At least three arguments are required. i want to plot
plot(cent_s,yfit)

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Accepted Answer

zepp
zepp on 23 Feb 2015
You can do the following:
1) Estimate the mean and standard deviation using normfit
2) Calculate the probability estimates using normpdf
3) Plot the data and the estimates using plot
Example:
[m,s] = normfit(x);
y = normpdf(x,m,s);
plot(x,y,'.');

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