{"id":12308,"date":"2024-10-12T21:05:12","date_gmt":"2024-10-12T12:05:12","guid":{"rendered":"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/?p=12308"},"modified":"2024-10-12T21:05:12","modified_gmt":"2024-10-12T12:05:12","slug":"pysci-on-hot","status":"publish","type":"post","link":"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/2024\/10\/12\/pysci-on-hot\/","title":{"rendered":"\u3010Python\/scikit-learn\u3011on-hot\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306e\u89e3\u8aac\u3068\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u4f8b"},"content":{"rendered":"<p>Scikit-learn\u3067\u306eone-hot\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306f\u30ab\u30c6\u30b4\u30ea\u5909\u6570\u3092\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\u306b\u9069\u3057\u305f\u5f62\u5f0f\u306b\u5909\u63db\u3059\u308b\u305f\u3081\u306b\u7528\u3044\u3089\u308c\u307e\u3059\u3002\u30ab\u30c6\u30b4\u30ea\u30c7\u30fc\u30bf\u3092\u6570\u5024\u306b\u5909\u63db\u3059\u308b\u969b\u3001\u5358\u7d14\u306a\u30e9\u30d9\u30eb\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3067\u306f\u3001\u6570\u5024\u306e\u5927\u5c0f\u306b\u610f\u5473\u304c\u751f\u307e\u308c\u308b\u305f\u3081\u554f\u984c\u304c\u3042\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3053\u3067\u3001\u5404\u30ab\u30c6\u30b4\u30ea\u3092\u30d0\u30a4\u30ca\u30ea\u30d9\u30af\u30c8\u30eb\u3067\u8868\u3059one-hot\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u304c\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>Scikit-learn\u3067\u306fOneHotEncoder\u30af\u30e9\u30b9\u3092\u4f7f\u3063\u3066\u3053\u306e\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"brush: python; title: ; notranslate\" title=\"\">\r\nimport numpy as np\r\nfrom sklearn.preprocessing import OneHotEncoder\r\n\r\n# \u30b5\u30f3\u30d7\u30eb\u306e\u30ab\u30c6\u30b4\u30ea\u30c7\u30fc\u30bf\uff08\u4f8b\u3048\u3070\u52d5\u7269\u306e\u7a2e\u985e\uff09\r\ndata = np.array(&#x5B;&#x5B;'cat'], &#x5B;'dog'], &#x5B;'rabbit'], &#x5B;'cat'], &#x5B;'dog']])\r\n\r\n# OneHotEncoder\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\r\nencoder = OneHotEncoder(sparse_output=False)  # sparse=False\u3067\u5bc6\u306a\u884c\u5217\u3092\u51fa\u529b\r\n\r\n# \u30c7\u30fc\u30bf\u3092\u30a8\u30f3\u30b3\u30fc\u30c9\r\nencoded_data = encoder.fit_transform(data)\r\n\r\nprint(&quot;\u5143\u306e\u30c7\u30fc\u30bf:&quot;)\r\nprint(data)\r\nprint(&quot;\\n&quot;)\r\nprint(&quot;One-Hot\u30a8\u30f3\u30b3\u30fc\u30c9\u5f8c\u306e\u30c7\u30fc\u30bf:&quot;)\r\nprint(encoded_data)\r\n \r\n<\/pre>\n<p>&nbsp;<\/p>\n<p>\u51fa\u529b\u7d50\u679c\u306f\u3053\u3061\u3089\u3002 \u5404\u30ab\u30c6\u30b4\u30ea\uff08\u4f8b: cat, dog, rabbit\uff09\u304c\u305d\u308c\u305e\u308c\u4e00\u610f\u306e\u30d9\u30af\u30c8\u30eb\u3067\u8868\u3055\u308c\u307e\u3059\u3002<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\n\u5143\u306e\u30c7\u30fc\u30bf:\r\n&#x5B;&#x5B;'cat']\r\n &#x5B;'dog']\r\n &#x5B;'rabbit']\r\n &#x5B;'cat']\r\n &#x5B;'dog']]\r\n\r\nOne-Hot\u30a8\u30f3\u30b3\u30fc\u30c9\u5f8c\u306e\u30c7\u30fc\u30bf:\r\n&#x5B;&#x5B;1. 0. 0.]\r\n &#x5B;0. 1. 0.]\r\n &#x5B;0. 0. 1.]\r\n &#x5B;1. 0. 0.]\r\n &#x5B;0. 1. 0.]]\r\n \r\n<\/pre>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Scikit-learn\u3067\u306eone-hot\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306f\u30ab\u30c6\u30b4\u30ea\u5909\u6570\u3092\u6a5f\u68b0\u5b66 &#8230; <\/p>\n","protected":false},"author":1,"featured_media":12307,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37],"tags":[],"class_list":["post-12308","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python"],"aioseo_notices":[],"_links":{"self":[{"href":"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/posts\/12308","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/comments?post=12308"}],"version-history":[{"count":1,"href":"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/posts\/12308\/revisions"}],"predecessor-version":[{"id":12309,"href":"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/posts\/12308\/revisions\/12309"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/media\/12307"}],"wp:attachment":[{"href":"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/media?parent=12308"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/categories?post=12308"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/tags?post=12308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}