{"id":886,"date":"2023-12-19T18:56:49","date_gmt":"2022-11-29T07:59:37","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%a6%82%e4%bd%95%e5%9c%a8r%e4%b8%ad%e5%af%b9%e6%95%b0%e6%8d%ae%e8%bf%9b%e8%a1%8c%e6%a0%87%e5%87%86%e5%8c%963%e7%a7%8d%e7%ae%80%e5%8d%95%e6%96%b9%e6%b3%95\/"},"modified":"2025-08-03T15:24:52","modified_gmt":"2025-08-03T07:24:52","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8r%e4%b8%ad%e5%af%b9%e6%95%b0%e6%8d%ae%e8%bf%9b%e8%a1%8c%e6%a0%87%e5%87%86%e5%8c%963%e7%a7%8d%e7%ae%80%e5%8d%95%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8r%e4%b8%ad%e5%af%b9%e6%95%b0%e6%8d%ae%e8%bf%9b%e8%a1%8c%e6%a0%87%e5%87%86%e5%8c%963%e7%a7%8d%e7%ae%80%e5%8d%95%e6%96%b9%e6%b3%95\/","title":{"rendered":"R\u8bed\u8a00\u6570\u636e\u6807\u51c6\u5316\u5b8c\u5168\u6307\u5357\uff1a3\u79cd\u7b80\u5355\u65b9\u6cd5\u4e0e\u5b9e\u4f8b\u89e3\u6790"},"content":{"rendered":"

\u5927\u5bb6\u597d\uff0c\u8bfb\u8005\u4eec\uff01\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u8ba8R\u7f16\u7a0b\u4e2d3\u79cd\u7b80\u5355\u7684\u6570\u636e\u6807\u51c6\u5316\u65b9\u6cd5\u3002<\/p>\n

\u90a3\u4e48\uff0c\u8ba9\u6211\u4eec\u5f00\u59cb\u5427\uff01<\/p>\n

\n

\u4ec0\u4e48\u662f\u6570\u636e\u6807\u51c6\u5316\uff1f<\/h2>\n

\u5728\u6570\u636e\u79d1\u5b66\u4e2d\u89e3\u51b3\u9884\u6d4b\u95ee\u9898\u65f6\uff0c\u7279\u5f81\u7f29\u653e\u662f\u5efa\u6a21\u4e4b\u524d\u7684\u4e00\u4e2a\u91cd\u8981\u6b65\u9aa4\u3002\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u5bf9\u8f83\u5c0f\u548c\u6807\u51c6\u5316\u7684\u6570\u636e\u6548\u679c\u66f4\u597d\u3002<\/p>\n

\u8fd9\u79cd\u60c5\u51b5\u4e0b\u5c31\u9700\u8981\u8fdb\u884c\u6807\u51c6\u5316\u3002\u6807\u51c6\u5316\u6280\u672f\u4f7f\u6211\u4eec\u80fd\u591f\u51cf\u5c0f\u53d8\u91cf\u7684\u89c4\u6a21\uff0c\u4ece\u800c\u79ef\u6781\u5730\u5f71\u54cd\u6570\u636e\u7684\u7edf\u8ba1\u5206\u5e03\u3002<\/p>\n

\u5728\u63a5\u4e0b\u6765\u7684\u90e8\u5206\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u4e00\u4e9b\u5bf9\u6570\u636e\u503c\u8fdb\u884c\u6807\u51c6\u5316\u7684\u6280\u672f\u3002<\/p>\n

\n

\u65b9\u6cd5\u4e00\uff1a\u5bf9\u6570\u8f6c\u6362<\/h3>\n

\u5728\u73b0\u5b9e\u4e16\u754c\u7684\u5e94\u7528\u573a\u666f\u4e2d\uff0c\u4e3a\u4e86\u5904\u7406\u6570\u636e\uff0c\u6211\u4eec\u7ecf\u5e38\u9047\u5230\u6570\u636e\u96c6\u5206\u5e03\u4e0d\u5747\u7684\u60c5\u51b5\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5b83\u4eec\u8981\u4e48\u5b58\u5728\u504f\u5dee\uff0c\u8981\u4e48\u4e0d\u7b26\u5408\u6570\u503c\u7684\u6807\u51c6\u5316\u8981\u6c42\u3002<\/p>\n

\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5c06\u503c\u901a\u8fc7\u6bcf\u4e2a\u5355\u72ec\u7684\u5bf9\u6570\u503c\u8fdb\u884c\u7f29\u653e\u662f\u4f7f\u5176\u9002\u5e94\u9002\u5f53\u6bd4\u4f8b\u7684\u6700\u7b80\u4fbf\u65b9\u6cd5\u3002<\/p>\n

\u5728\u4e0b\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528R\u4e2d\u7684log()\u51fd\u6570\u5bf9\u6570\u636e\u6846”data”\u4e2d\u5b58\u5728\u7684\u8f83\u5927\u6570\u636e\u503c\u8fdb\u884c\u4e86\u7f29\u653e\u3002<\/p>\n

rm(<\/span>list =<\/span> ls(<\/span>)<\/span>)<\/span>\r\n\r\ndata =<\/span> c(<\/span>1200<\/span>,<\/span>34567<\/span>,<\/span>3456<\/span>,<\/span>12<\/span>,<\/span>3456<\/span>,<\/span>0985<\/span>,<\/span>1211<\/span>)<\/span>\r\nsummary(<\/span>data)<\/span>\r\nlog_scale =<\/span> log(<\/span>as.data.frame(<\/span>data)<\/span>)<\/span>\r\n\r\n<\/code><\/pre>\n
\u8f93\u51fa\uff1a<\/p>\n
         data\r\n1<\/span>\t7.090077<\/span>\r\n2<\/span>\t10.450655<\/span>\r\n3<\/span>\t8.147867<\/span>\r\n4<\/span>\t2.484907<\/span>\r\n5<\/span>\t8.147867<\/span>\r\n6<\/span>\t6.892642<\/span>\r\n7<\/span>\t7.099202<\/span>\r\n<\/code><\/pre>\n
\n
\u65b9\u6cd5\u4e8c\uff1a\u6700\u5c0f-\u6700\u5927\u7f29\u653e<\/h3>\n
\u53e6\u4e00\u79cd\u901a\u8fc7\u6700\u5c0f-\u6700\u5927\u7f29\u653e\u65b9\u6cd5\u8fdb\u884c\u6570\u503c\u6807\u51c6\u5316\u7684\u9ad8\u6548\u65b9\u5f0f\u3002<\/p>\n
\u901a\u8fc7\u6700\u5c0f\u6700\u5927\u7f29\u653e\uff0c\u6211\u4eec\u5c06\u6570\u636e\u503c\u7f29\u653e\u52300\u52301\u7684\u8303\u56f4\u5185\u3002\u7531\u4e8e\u8fd9\u4e2a\u539f\u56e0\uff0c\u5f02\u5e38\u503c\u5bf9\u6570\u636e\u7684\u5f71\u54cd\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u88ab\u538b\u5236\u4e86\u3002\u6b64\u5916\uff0c\u5b83\u5e2e\u52a9\u6211\u4eec\u83b7\u5f97\u8f83\u5c0f\u7684\u6807\u51c6\u5dee\u6570\u636e\u5c3a\u5ea6\u3002<\/p>\n
\u5728\u4e0b\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u4e86”caret”\u5305\u6765\u9884\u5904\u7406\u548c\u7f29\u653e\u6570\u636e\u3002preProcess()\u51fd\u6570\u4f7f\u6211\u4eec\u80fd\u591f\u4f7f\u7528method = c(‘range’)\u53c2\u6570\u5c06\u503c\u7f29\u653e\u52300\u52301\u7684\u8303\u56f4\u5185\u3002predict()\u65b9\u6cd5\u5c06preProcess()\u51fd\u6570\u7684\u64cd\u4f5c\u5e94\u7528\u4e8e\u6574\u4e2a\u6570\u636e\u6846\uff0c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
rm(<\/span>list =<\/span> ls(<\/span>)<\/span>)<\/span>\r\n\r\ndata =<\/span> c(<\/span>1200<\/span>,<\/span>34567<\/span>,<\/span>3456<\/span>,<\/span>12<\/span>,<\/span>3456<\/span>,<\/span>0985<\/span>,<\/span>1211<\/span>)<\/span>\r\nsummary(<\/span>data)<\/span>\r\nlibrary(<\/span>caret)<\/span>\r\nprocess <-<\/span> preProcess(<\/span>as.data.frame(<\/span>data)<\/span>,<\/span> method=<\/span>c(<\/span>\"range\"<\/span>)<\/span>)<\/span>\r\n\r\nnorm_scale <-<\/span> predict(<\/span>process,<\/span> as.data.frame(<\/span>data)<\/span>)<\/span>\r\n\r\n<\/code><\/pre>\n
\u8f93\u51fa\uff1a<\/p>\n
           data\r\n1<\/span>\t0.03437997<\/span>\r\n2<\/span>\t1.00000000<\/span>\r\n3<\/span>\t0.09966720<\/span>\r\n4<\/span>\t0.00000000<\/span>\r\n5<\/span>\t0.09966720<\/span>\r\n6<\/span>\t0.02815801<\/span>\r\n7<\/span>\t0.03469831<\/span>\r\n<\/code><\/pre>\n
\n
\u65b9\u6cd5\u4e09\uff1a\u6807\u51c6\u7f29\u653e<\/h3>\n
\u6807\u51c6\u7f29\u653e\u662f\u53e6\u4e00\u79cd\u5e38\u7528\u7684\u6570\u636e\u6807\u51c6\u5316\u65b9\u6cd5\uff0c\u5b83\u5c06\u6570\u636e\u8f6c\u6362\u4e3a\u5747\u503c\u4e3a0\u3001\u6807\u51c6\u5dee\u4e3a1\u7684\u5206\u5e03\u3002<\/p>\n
\u6807\u51c6\u5316\u7f29\u653e\u65b9\u6cd5<\/h2>\n
\u5728\u6807\u51c6\u5316\u7f29\u653e\u4e2d\uff0c\u4e5f\u88ab\u79f0\u4e3a\u503c\u7684\u6807\u51c6\u5316\uff0c\u6211\u4eec\u5bf9\u6570\u636e\u503c\u8fdb\u884c\u7f29\u653e\uff0c\u4ee5\u4f7f\u6bcf\u4e2a\u53d8\u91cf\u7684\u6574\u4f53\u7edf\u8ba1\u6458\u8981\u5177\u6709\u96f6\u5747\u503c\u548c\u5355\u4f4d\u65b9\u5dee\u503c\u3002<\/p>\n
\u4f7f\u7528scale()\u51fd\u6570\u53ef\u4ee5\u5bf9\u6570\u636e\u503c\u8fdb\u884c\u6807\u51c6\u5316\uff0c\u4f7f\u5176\u5c45\u4e2d\u4e14\u7f29\u653e\u3002<\/p>\n
rm(<\/span>list =<\/span> ls(<\/span>)<\/span>)<\/span>\r\n\r\ndata =<\/span> c(<\/span>1200<\/span>,<\/span>34567<\/span>,<\/span>3456<\/span>,<\/span>12<\/span>,<\/span>3456<\/span>,<\/span>0985<\/span>,<\/span>1211<\/span>)<\/span>\r\nsummary(<\/span>data)<\/span>\r\nscale_data <-<\/span> as.data.frame(<\/span>scale(<\/span>data)<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u8f93\u51fa\u7ed3\u679c\uff1a<\/p>\n
\u5982\u4e0b\u6240\u793a\uff0c\u6570\u636e\u5728\u7f29\u653e\u4e4b\u524d\u7684\u5747\u503c\u4e3a6412\u3002\u7136\u800c\uff0c\u5728\u8fdb\u884c\u503c\u7f29\u653e\u540e\uff0c\u5747\u503c\u51cf\u5c11\u4e3a\u96f6\u3002<\/p>\n
 Min. 1<\/span>st Qu.  Median    Mean 3<\/span>rd Qu.    Max. \r\n     12<\/span>    1092<\/span>    1211<\/span>    6412<\/span>    3456<\/span>   34567<\/span>\t\r\n\r\n            V1\r\n1<\/span>\t-<\/span>0.4175944<\/span>\r\n2<\/span>\t2.2556070<\/span>\r\n3<\/span>\t-<\/span>0.2368546<\/span>\r\n4<\/span>\t-<\/span>0.5127711<\/span>\r\n5<\/span>\t-<\/span>0.2368546<\/span>\r\n6<\/span>\t-<\/span>0.4348191<\/span>\r\n7<\/span>\t-<\/span>0.4167131<\/span>\r\n\r\n           V1         \r\n Min.   :<\/span>-<\/span>0.5128<\/span>  \r\n 1<\/span>st Qu.:<\/span>-<\/span>0.4262<\/span>  \r\n Median :<\/span>-<\/span>0.4167<\/span>  \r\n Mean   :<\/span> 0.0000<\/span>  \r\n 3<\/span>rd Qu.:<\/span>-<\/span>0.2369<\/span>  \r\n Max.   :<\/span> 2.2556<\/span>  \r\n<\/code><\/pre>\n
\n
\u7ed3\u8bba<\/h2>\n
\u901a\u8fc7\u672c\u6559\u7a0b\uff0c\u6211\u4eec\u5df2\u7ecf\u5b8c\u6210\u4e86R\u8bed\u8a00\u4e2d\u6570\u636e\u6807\u51c6\u5316\u7684\u5b66\u4e60\u3002\u5982\u679c\u60a8\u5728\u5b9e\u8df5\u8fc7\u7a0b\u4e2d\u9047\u5230\u4efb\u4f55\u95ee\u9898\uff0c\u8bf7\u968f\u65f6\u5728\u8bc4\u8bba\u533a\u7559\u8a00\u3002\u60f3\u8981\u83b7\u53d6\u66f4\u591aR\u7f16\u7a0b\u76f8\u5173\u7684\u6559\u7a0b\uff0c\u8bf7\u7ee7\u7eed\u5173\u6ce8\u6211\u4eec\u7684\u7f51\u7ad9\uff01<\/p>\n
\u795d\u60a8\u5b66\u4e60\u6109\u5feb\uff01 \ud83d\ude42<\/p>\n
\n
\u53c2\u8003\u8d44\u6599<\/h2>\n
    \n
  • R\u8bed\u8a00scale()\u51fd\u6570\u5b98\u65b9\u6587\u6863<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
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