Data Distribution

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developer
developer 2011-9-29
Hello, I have some data and i want to see it in plot that how it is distributed all over, like getting some plot , but the plot command donot give me smooth curve or response i want to see it in curve.Or u can say like gaussian distribution of my historgram like this one
http://www.chemicool.com/definition/gaussian_distribution.html
Thanks in advance

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回答（2 个）

Walter Roberson
Walter Roberson 2011-9-29
Perhaps you want to use hist() to draw a histogram of the data?
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developer
developer 2011-9-29
but i want to see the curve plotting on to that histogram

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Wayne King
Wayne King 2011-9-29
Then perhaps, you would like to try histfit() with some specified distribution.
histfit(randn(1e3,1),20,'normal')
or use ksdensity()
x = [randn(30,1); 5+randn(30,1)];
[f,xi] = ksdensity(x);
plot(xi,f);
The Wavelet Toolbox also has 1-D density estimation capability.

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