matlab画频率分布直方图

Generate 10,000 random numbers and create a histogram. The histogramfunction automatically chooses 
an appropriate number of bins to cover the range of values in x and show the shape of the 
underlying distribution.

x = randn(10000,1);
h = histogram(x)

randn(100001)产生10 000个均值0，标准差1的正态分布随机数。

原文：https://www.cnblogs.com/yibeimingyue/p/13416042.html