MATLAB: How to plot histogram

Question

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

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