{"id":1081,"date":"2019-10-05T22:34:27","date_gmt":"2019-10-05T14:34:27","guid":{"rendered":"https:\/\/www.ku88.xyz\/?p=1081"},"modified":"2021-07-07T23:11:09","modified_gmt":"2021-07-07T15:11:09","slug":"python-numpy-random-seed-%e5%bf%83%e5%be%97%e5%88%86%e4%ba%ab","status":"publish","type":"post","link":"https:\/\/www.ku88.xyz\/?p=1081","title":{"rendered":"Python &#8211; numpy.random.seed() \u5fc3\u5f97\u5206\u4eab"},"content":{"rendered":"\n<p>\u6700\u8fd1\u5728\u5de5\u4f5c\u4e0a\u9700\u8981\u7528\u5230\u96a8\u6a5f\u6311\u9078\u7684\u529f\u80fd\uff0c\u5f88\u81ea\u7136\u5c31\u60f3\u5230numpy\u88e1\u7684random\u6a21\u7d44\u3002\u53c8\u56e0\u70ba\u9700\u8981\u6bcf\u6b21\u7684\u96a8\u6a5f\u53ef\u4ee5\u91cd\u73fe\uff08\u62ff\u4f86\u505a\u9a57\u7b97\u3001\u4f5c\u5716\u3001\u6bd4\u8f03\uff09\uff0c\u6240\u4ee5\u5fc5\u9808\u5230\u7528seed\u7684\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p>\u61f6\u5f97\u770b\u5b98\u65b9\u6587\u4ef6\uff0c\u6240\u4ee5\u76f4\u63a5google\u300cnumpy random seed\u300d\uff0c\u537b\u767c\u73fe\u6bd4\u8f03\u5c11\u7e41\u9ad4\u53f0\u7063\u7684\u6587\u7ae0\uff0c\u800c\u4e14\u6392\u5728\u524d\u9762\u7684\u6587\u7ae0\u4e5f\u5beb\u7684\u5bb9\u6613\u8b93\u4eba\u9020\u6210\u8aa4\u6703\uff08\u81f3\u5c11\u6211\u662f\u8aa4\u6703\u4e86\uff09\u3002\u7a0d\u5fae\u7814\u7a76\u4e00\u4e0b\u6a21\u7d44\u5f8c\uff0c\u5beb\u500b\u7e41\u4e2d\u7248\uff0c\u7d66\u81ea\u5df1\u53c3\u8003\u4e5f\u5206\u4eab\u7d66\u5927\u5bb6\u3002<\/p>\n\n\n\n<p>seed\u7684\u7528\u6cd5\u5c31\u662f\u7d66\u5b9a\u4e00\u500b\u503c\u53bb\u6c7a\u5b9a\u4e4b\u5f8c\u4e82\u6578\u7684\u7522\u751f\u3002\u901a\u5e38\u6703\u7528\u5728\u6211\u5011\u5e0c\u671b\u6574\u500b\u4e82\u6578\u7522\u751f\u7684\u904e\u7a0b\u662f\u96a8\u6a5f\u7684\uff0c\u4f46\u5728\u5f8c\u7e8c\u7684\u7814\u7a76\u8207\u5206\u6790\u6642\u5247\u5e0c\u671b\u7528\u5230\u540c\u4e00\u7b46\u96a8\u6a5f\u7522\u751f\u7684\u4e82\u6578\u3002\u4e5f\u5c31\u662f\u8aaa\uff0c\u82e5\u4f60\u4e8b\u5148\u770b\u904e\u6839\u64da\u67d0\u500bseed\u7684\u503c\u6240\u7522\u751f\u7684\u96a8\u6a5f\u5e8f\u5217\uff0c\u90a3\u5176\u5be6\u5c0d\u4f60\u4f86\u8aaa\u5c31\u300c\u4e00\u9ede\u4e5f\u4e0d\u96a8\u6a5f\u4e86\u300d\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u8209\u4e00\u500b\u7c21\u55ae\u7684python code\uff0c\u96a8\u6a5f\u7522\u751f\u4e00\u500b\u300c\u4e4b\u5f8c\u53ef\u4ee5\u638c\u63e1\u7684\u96a8\u6a5f\u6578\u5217\u300d\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&gt;&gt;&gt; import numpy as np\n&gt;&gt;&gt; np.random.seed(88)\n&gt;&gt;&gt; np.random.rand(10)\narray(&#91;0.64755105, 0.50714969, 0.52834138, 0.8962852 , 0.69999119,\n       0.7142971 , 0.71733838, 0.22281946, 0.17515452, 0.45684149])\n&gt;&gt;&gt; np.random.seed(88)\n&gt;&gt;&gt; np.random.rand(10)\narray(&#91;0.64755105, 0.50714969, 0.52834138, 0.8962852 , 0.69999119,\n       0.7142971 , 0.71733838, 0.22281946, 0.17515452, 0.45684149])<\/code><\/pre>\n\n\n\n<p>\u6211\u5011\u8b93random.rand\u4ee5\u300c88\u300d\u70ba\u57fa\u6e96\u53bb\u7522\u751f10\u500b\u96a8\u6a5f\u8b8a\u6578\u7684\u503c\uff0c\u4e26\u518d\u4e00\u6b21\u7684\u7d66\u5b9a\u300c88\u300d\u8b93random.rand\u7522\u751f10\u500b\u96a8\u6a5f\u6578\u5217\u7684\u503c\uff0c\u4f60\u6703\u767c\u73fe\u7522\u751f\u7684\u6578\u5217\u503c\u5f88\u96a8\u6a5f\u5730\u4ecb\u57280\uff5e1\u4e4b\u9593\uff0c\u4f46\u5169\u6b21\u96a8\u6a5f\u7522\u751f\u7684\u6578\u503c\u537b\u662f\u4e00\u6a21\u4e00\u6a23\u7684\u3002<\/p>\n\n\n\n<p>\u9019\u6a23\u7684\u7279\u6027\u8b93\u6211\u5011\u53ef\u4ee5\u91cd\u8986\u7522\u751f\u76f8\u540c\u7684\u96a8\u6a5f\u6578\u5217\uff0c\u4e26\u5c0d\u7d50\u679c\u9032\u884c\u8a0e\u8ad6\u8207\u4fee\u6b63\u3002\u89ba\u5f97\u602a\u7684\u8a71\uff0c\u4e5f\u53ef\u4ee5\u628aseed\u6578\u503c\u60f3\u6210\u662f\u67d0\u500b\u6848\u4f8b\u5427\uff08Case\u7b2c88\u865f\u4e4b\u985e\u7684\uff09\u3002<\/p>\n\n\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5de5\u4f5c\u4e0a\u9700\u8981\u7528\u5230\u96a8\u6a5f\u6311\u9078\u7684\u529f\u80fd\uff0c\u5f88\u81ea\u7136\u5c31\u60f3\u5230numpy\u88e1\u7684random\u6a21\u7d44\u3002\u53c8\u56e0\u70ba\u9700\u8981\u6bcf\u6b21\u7684\u96a8\u6a5f\u53ef\u4ee5\u91cd\u73fe\uff08\u62ff\u4f86\u505a\u9a57\u7b97\u3001\u4f5c\u5716\u3001\u6bd4\u8f03\uff09\uff0c\u6240\u4ee5\u5fc5\u9808\u5230\u7528seed\u7684\u65b9\u6cd5\u3002 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