python中隨機選取元素 random.sample 和 np.random.choice()

時間 2020-12-30

原文原文鏈接

python中random.sample()方法可以隨機地從指定列表中提取出N個不同的元素，但在實踐中發現，當N的值比較大的時候，該方法執行速度很慢，如： numpy random模塊中的choice方法可以有效提升隨機提取的效率：需要注意的是，需要置replace爲False，即抽取的元素不能重複，默認爲True。

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python中 隨機選取元素 random.sample 和 np.random.choice()

python中隨機選取元素 random.sample 和 np.random.choice()