{"id":46804,"date":"2024-12-02T14:45:54","date_gmt":"2024-12-02T06:45:54","guid":{"rendered":"https:\/\/fwq.ai\/blog\/46804\/"},"modified":"2024-12-02T14:45:54","modified_gmt":"2024-12-02T06:45:54","slug":"php-%e5%87%bd%e6%95%b0%e4%b8%8e-r-%e5%87%bd%e6%95%b0%e7%9a%84%e6%af%94%e8%be%83","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/46804\/","title":{"rendered":"PHP \u51fd\u6570\u4e0e R \u51fd\u6570\u7684\u6bd4\u8f83"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP \u51fd\u6570\u4e0e R \u51fd\u6570\u7684\u6bd4\u8f83<\/h1>\n<p>\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aPHP \u51fd\u6570\u4e0e R \u51fd\u6570\u7684\u6bd4\u8f83\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p>PHP\u548cR\u662f\u6570\u636e\u5206\u6790\u4e2d\u6d41\u884c\u7684\u8bed\u8a00\u3002PHP\u51fd\u6570\u4f7f\u7528function\u5b9a\u4e49\uff0c\u53c2\u6570\u4ee5\u5f15\u7528\u4f20\u9012\uff0c\u663e\u5f0f\u8fd4\u56de\u3002R\u51fd\u6570\u4f7f\u7528function()\u5b9a\u4e49\uff0c\u53c2\u6570\u9ed8\u8ba4\u503c\u4f20\u9012\uff0c\u9690\u5f0f\u8fd4\u56de\u3002PHP\u51fd\u6570\u901a\u8fc7\u5f15\u7528\u4f20\u9012\u53c2\u6570\uff0c\u800cR\u51fd\u6570\u901a\u8fc7\u503c\u4f20\u9012\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241025\/1729847574671b6116b4096.jpg\" class=\"aligncenter\" title=\"PHP \u51fd\u6570\u4e0e R \u51fd\u6570\u7684\u6bd4\u8f83\u63d2\u56fe\" alt=\"PHP \u51fd\u6570\u4e0e R \u51fd\u6570\u7684\u6bd4\u8f83\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u51fd\u6570\u4e0e R \u51fd\u6570\u7684\u6bd4\u8f83<\/strong><\/p>\n<p>\u5728\u6570\u636e\u5206\u6790\u9886\u57df\uff0cPHP \u548c R \u662f\u6d41\u884c\u7684\u6570\u636e\u5904\u7406\u8bed\u8a00\u3002\u7136\u800c\uff0c\u5728\u51fd\u6570\u751f\u6001\u7cfb\u7edf\u65b9\u9762\uff0c\u5b83\u4eec\u6709\u7740\u4e0d\u540c\u7684\u7279\u6027\u548c\u4f18\u70b9\u3002\u672c\u6587\u5c06\u6bd4\u8f83 PHP \u548c R \u51fd\u6570\uff0c\u5e76\u63d0\u4f9b\u5b9e\u9645\u6848\u4f8b\u6765\u5c55\u793a\u5b83\u4eec\u7684\u5e94\u7528\u3002<\/p>\n<p><strong>\u51fd\u6570\u5b9a\u4e49<\/strong><\/p>\n<ul>\n<li><strong>PHP \u51fd\u6570\uff1a<\/strong>\u4f7f\u7528 <code>function<\/code> \u5173\u952e\u5b57\u5b9a\u4e49\uff0c\u540e\u9762\u8ddf\u51fd\u6570\u540d\u79f0\u3001\u53c2\u6570\u5217\u8868\u548c\u51fd\u6570\u4f53\u3002<\/li>\n<li><strong>R \u51fd\u6570\uff1a<\/strong>\u4f7f\u7528 <code>function()<\/code> \u51fd\u6570\u5b9a\u4e49\uff0c\u5176\u5185\u90e8\u5305\u542b\u51fd\u6570\u540d\u79f0\u3001\u53c2\u6570\u5217\u8868\u548c\u51fd\u6570\u4f53\u3002<\/li>\n<\/ul>\n<p><strong>\u53c2\u6570\u4f20\u9012<\/strong><\/p>\n<ul>\n<li><strong>PHP \u51fd\u6570\uff1a<\/strong>\u53c2\u6570\u4ee5\u5f15\u7528\u4f20\u9012\uff0c\u8fd9\u610f\u5473\u7740\u5728\u51fd\u6570\u5185\u90e8\u5bf9\u53c2\u6570\u7684\u4fee\u6539\u4e5f\u53cd\u6620\u5728\u5916\u90e8\u3002<\/li>\n<li><strong>R \u51fd\u6570\uff1a<\/strong>\u53c2\u6570\u9ed8\u8ba4\u4ee5\u503c\u4f20\u9012\uff0c\u610f\u5473\u7740\u5728\u51fd\u6570\u5185\u90e8\u5bf9\u53c2\u6570\u7684\u4fee\u6539\u4e0d\u4f1a\u5f71\u54cd\u5916\u90e8\u53d8\u91cf\u3002<\/li>\n<\/ul>\n<p><strong>\u51fd\u6570\u8fd4\u56de<\/strong><\/p>\n<ul>\n<li><strong>PHP \u51fd\u6570\uff1a<\/strong>\u4f7f\u7528 <code>return<\/code> \u8bed\u53e5\u8fd4\u56de\u4e00\u4e2a\u503c\uff0c\u5982\u679c\u6ca1\u6709\u660e\u786e\u7684 <code>return<\/code> \u8bed\u53e5\uff0c\u5219\u8fd4\u56de <code>NULL<\/code>\u3002<\/li>\n<li><strong>R \u51fd\u6570\uff1a<\/strong>\u9690\u5f0f\u5730\u8fd4\u56de\u6700\u540e\u4e00\u4e2a\u6c42\u503c\u8868\u8fbe\u5f0f\uff0c\u9664\u975e\u660e\u786e\u5730\u4f7f\u7528 <code>return()<\/code> \u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u503c\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p><strong>\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u4e32\u7684\u76f8\u4f3c\u6027\uff08Levenshtein \u8ddd\u79bb\uff09<\/strong><\/p>\n<pre>&lt;?php\nfunction levenshteinDistance($s1, $s2) {\n    $len1 = strlen($s1);\n    $len2 = strlen($s2);\n    $matrix = array_fill(0, $len1 + 1, array_fill(0, $len2 + 1, 0));\n    for ($i = 0; $i &lt;= $len1; $i++) {\n        $matrix[$i][0] = $i;\n    }\n    for ($j = 0; $j &lt;= $len2; $j++) {\n        $matrix[0][$j] = $j;\n    }\n    for ($i = 1; $i &lt;= $len1; $i++) {\n        for ($j = 1; $j &lt;= $len2; $j++) {\n            if ($s1[$i - 1] === $s2[$j - 1]) {\n                $cost = 0;\n            } else {\n                $cost = 1;\n            }\n            $matrix[$i][$j] = min($matrix[$i - 1][$j] + 1, \/\/ \u5220\n                $matrix[$i][$j - 1] + 1, \/\/ \u52a0\n                $matrix[$i - 1][$j - 1] + $cost); \/\/ \u6362\n        }\n    }\n    return $matrix[$len1][$len2];\n}\n\necho levenshteinDistance(\"hello\", \"world\"); \/\/ \u8f93\u51fa\uff1a6\n?&gt;<\/pre>\n<pre>levenshtein &lt;- function(s1, s2) {\n  len1 &lt;- nchar(s1)\n  len2 &lt;- nchar(s2)\n  matrix &lt;- matrix(0, nrow = len1 + 1, ncol = len2 + 1)\n  for (i in 0:len1) {\n    matrix[i + 1, 1] &lt;- i\n  }\n  for (j in 0:len2) {\n    matrix[1, j + 1] &lt;- j\n  }\n  for (i in 1:len1) {\n    for (j in 1:len2) {\n      if (substr(s1, i, 1) == substr(s2, j, 1)) {\n        cost &lt;- 0\n      } else {\n        cost &lt;- 1\n      }\n      matrix[i + 1, j + 1] &lt;- min(matrix[i, j] + 1,  # \u5220\n                                     matrix[i + 1, j] + 1,  # \u52a0\n                                     matrix[i, j + 1] + cost)  # \u6362\n    }\n  }\n  return(matrix[len1 + 1, len2 + 1])\n}\n\nlevenshtein(\"hello\", \"world\")  # \u8f93\u51fa\uff1a6<\/pre>\n<p><strong>\u8ba1\u7b97\u6570\u636e\u7684\u6807\u51c6\u5dee<\/strong><\/p>\n<pre>&lt;?php\nfunction standardDeviation($data) {\n    $mean = array_sum($data) \/ count($data);\n    $variance = 0;\n    foreach ($data as $value) {\n        $variance += pow($value - $mean, 2);\n    }\n    $variance \/= count($data) - 1;\n    return sqrt($variance);\n}\n\necho standardDeviation([1, 2, 3, 4, 5]); \/\/ \u8f93\u51fa\uff1a1.5811\n?&gt;<\/pre>\n<pre>sd &lt;- function(data) {\n  mean &lt;- mean(data)\n  variance &lt;- sum((data - mean)^2) \/ (length(data) - 1)\n  sqrt(variance)\n}\n\nsd(c(1, 2, 3, 4, 5))  # \u8f93\u51fa\uff1a1.5811<\/pre>\n<p><strong>\u7ed3\u8bba<\/strong><\/p>\n<p>PHP \u548c R \u7684\u51fd\u6570\u90fd\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u6570\u636e\u5904\u7406\u529f\u80fd\uff0c\u4f46\u5b83\u4eec\u5728\u53c2\u6570\u4f20\u9012\u548c\u8fd4\u56de\u673a\u5236\u4e0a\u5b58\u5728\u5dee\u5f02\u3002\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u548c\u504f\u597d\uff0c\u53ef\u4ee5\u9009\u62e9\u6700\u9002\u5408\u7684\u8bed\u8a00\u6765\u5b9e\u73b0\u6570\u636e\u5206\u6790\u4efb\u52a1\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300aPHP \u51fd\u6570\u4e0e R \u51fd\u6570\u7684\u6bd4\u8f83\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8ephp,R\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP \u51fd\u6570\u4e0e R \u51fd\u6570\u7684\u6bd4\u8f83 \u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7\u300aPHP \u51fd\u6570\u4e0e R \u51fd\u6570\u7684\u6bd4\u8f83\u300b\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0\u6587\u7ae0\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01 PHP\u548cR\u662f\u6570\u636e\u5206\u6790\u4e2d\u6d41\u884c\u7684\u8bed\u8a00\u3002PHP\u51fd\u6570\u4f7f\u7528function\u5b9a\u4e49\uff0c\u53c2\u6570\u4ee5\u5f15\u7528\u4f20\u9012\uff0c\u663e\u5f0f\u8fd4\u56de\u3002R\u51fd\u6570\u4f7f\u7528function()\u5b9a\u4e49\uff0c\u53c2\u6570\u9ed8\u8ba4\u503c\u4f20\u9012\uff0c\u9690\u5f0f\u8fd4\u56de\u3002PHP\u51fd\u6570\u901a\u8fc7\u5f15\u7528\u4f20\u9012\u53c2\u6570\uff0c\u800cR\u51fd\u6570\u901a\u8fc7\u503c\u4f20\u9012\u3002 PHP \u51fd\u6570\u4e0e R \u51fd\u6570\u7684\u6bd4\u8f83 \u5728\u6570\u636e\u5206\u6790\u9886\u57df\uff0cPHP \u548c R \u662f\u6d41\u884c\u7684\u6570\u636e\u5904\u7406\u8bed\u8a00\u3002\u7136\u800c\uff0c\u5728\u51fd\u6570\u751f\u6001\u7cfb\u7edf\u65b9\u9762\uff0c\u5b83\u4eec\u6709\u7740\u4e0d\u540c\u7684\u7279\u6027\u548c\u4f18\u70b9\u3002\u672c\u6587\u5c06\u6bd4\u8f83 PHP \u548c R \u51fd\u6570\uff0c\u5e76\u63d0\u4f9b\u5b9e\u9645\u6848\u4f8b\u6765\u5c55\u793a\u5b83\u4eec\u7684\u5e94\u7528\u3002 \u51fd\u6570\u5b9a\u4e49 PHP \u51fd\u6570\uff1a\u4f7f\u7528 function \u5173\u952e\u5b57\u5b9a\u4e49\uff0c\u540e\u9762\u8ddf\u51fd\u6570\u540d\u79f0\u3001\u53c2\u6570\u5217\u8868\u548c\u51fd\u6570\u4f53\u3002 R \u51fd\u6570\uff1a\u4f7f\u7528 function() \u51fd\u6570\u5b9a\u4e49\uff0c\u5176\u5185\u90e8\u5305\u542b\u51fd\u6570\u540d\u79f0\u3001\u53c2\u6570\u5217\u8868\u548c\u51fd\u6570\u4f53\u3002 \u53c2\u6570\u4f20\u9012 PHP \u51fd\u6570\uff1a\u53c2\u6570\u4ee5\u5f15\u7528\u4f20\u9012\uff0c\u8fd9\u610f\u5473\u7740\u5728\u51fd\u6570\u5185\u90e8\u5bf9\u53c2\u6570\u7684\u4fee\u6539\u4e5f\u53cd\u6620\u5728\u5916\u90e8\u3002 R \u51fd\u6570\uff1a\u53c2\u6570\u9ed8\u8ba4\u4ee5\u503c\u4f20\u9012\uff0c\u610f\u5473\u7740\u5728\u51fd\u6570\u5185\u90e8\u5bf9\u53c2\u6570\u7684\u4fee\u6539\u4e0d\u4f1a\u5f71\u54cd\u5916\u90e8\u53d8\u91cf\u3002 \u51fd\u6570\u8fd4\u56de PHP \u51fd\u6570\uff1a\u4f7f\u7528 return \u8bed\u53e5\u8fd4\u56de\u4e00\u4e2a\u503c\uff0c\u5982\u679c\u6ca1\u6709\u660e\u786e\u7684 return \u8bed\u53e5\uff0c\u5219\u8fd4\u56de NULL\u3002 R \u51fd\u6570\uff1a\u9690\u5f0f\u5730\u8fd4\u56de\u6700\u540e\u4e00\u4e2a\u6c42\u503c\u8868\u8fbe\u5f0f\uff0c\u9664\u975e\u660e\u786e\u5730\u4f7f\u7528 return() \u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u503c\u3002 \u5b9e\u6218\u6848\u4f8b \u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u4e32\u7684\u76f8\u4f3c\u6027\uff08Levenshtein \u8ddd\u79bb\uff09 &lt;?php function levenshteinDistance($s1, $s2) { [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-46804","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46804","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=46804"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46804\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=46804"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=46804"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=46804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}