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Lesson 05 random 亂數函數

https://docs.scipy.org/doc/numpy/reference/generated/numpy.random.rand.html Lesson 5.1 rand(d0, d1, ..., dn) 亂數
rand(d0, d1, ..., dn): Random values in a given shape, range[0,1). 產生n個維度[0-1)的亂數
Lesson 5.2 randint(l, m, n]) random integers function. 整數亂數函數
randint(l, m, n]) generate n integers, the values of the integers between l and m, range[l,m), 產生m個介於l跟m的整數亂數

Lesson 5.1 rand(d0, d1, ..., dn) 亂數

rand(d0, d1, ..., dn): Random values in a given shape. 產生n個維度0-1的亂數

Example Code

import numpy as np;

data1 = np.random.rand(1);

data2 = np.random.rand(1,3);

data3 = np.random.rand(1,2);

print("np.random.rand(1) = ", data1);

print("np.random.rand(1,3) = ", data2);

print("np.random.rand(1,2) = ", data3);

print("np.random.rand(2,3) = ", np.random.rand(2,3));

Note and Comments

np.random.rand(m) 產生m個0到1的隨機數

np.random.rand(n,m) 產生n組隨機數,每組有m個隨機數

result

Lesson 5.2 randint(l, m, n]) random integers function. 整數亂數函數

randint(l, m, n]) generate n integers, the values of the integers between l and m, 產生m個介於l跟m的整數亂數

Example Code

import numpy as np;

dprint( "np.random.randint(0, 3) = ", np.random.randint(0, 3) );

print( "np.random.ranint(0, 3, 10) = ", np.random.randint(0, 3, 10) );

Note and Comments

np.random.randint(l,m) 產生l到m的隨機整數

np.random.randint(l,m,n) 產生n組隨機整數,整數介於l,m之間.

result