How can I plot histogram?

I nedd help to scale the y-axis of Gaussian pdf

for example:

x = linspace(-20,20);

plot(x,normpdf(x,4,4))

How can I plot the histogram of this example?

Answer 1

[Walter Roberson]

x = linspace(-20,20);
y = normpdf(x, 4, 4);
plot(x,y) 

histogram(y, 10)

[Amer Al-Maashani]

Is it possible to add the histogram plot to the nomral normpdf? like both in the same plot.

[Walter Roberson]

Sure.

x = linspace(-20,20);
y = normpdf(x, 4, 4);
plot(x,y)
hold on
histogram(y, 10)
hold off

Not very useful, though.

[Walter Roberson]

I suspect that you are looking for something like the following, but notice that it is exactly opposite to what you asked for.

https://www.mathworks.com/help/stats/histfit.html

r = normrnd(10,1,100,1);
histfit(r)

Answer 2

[Daniel Pollard]

Simply googling "matlab histogram" would have answered your question.

That link is for the documentation for histogram.

histogram(normpdf(x,4,4))

will do what you want.