{"id":3045,"date":"2022-02-20T22:10:57","date_gmt":"2022-02-20T14:10:57","guid":{"rendered":"https:\/\/egonlin.com\/?p=3045"},"modified":"2022-02-20T22:10:57","modified_gmt":"2022-02-20T14:10:57","slug":"%e7%ac%ac%e4%ba%94%e8%8a%82%ef%bc%9akd%e6%a0%91%e9%b8%a2%e5%b0%be%e8%8a%b1%e5%88%86%e7%b1%bb","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=3045","title":{"rendered":"\u7b2c\u4e94\u8282\uff1akd\u6811(\u9e22\u5c3e\u82b1\u5206\u7c7b)"},"content":{"rendered":"<h1>kd\u6811(\u9e22\u5c3e\u82b1\u5206\u7c7b)<\/h1>\n<h1>\u5bfc\u5165\u6a21\u5757<\/h1>\n<pre><code class=\"language-python\">import numpy as np\nimport matplotlib.pyplot as plt![\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0](https:\/\/img-blog.csdnimg.cn\/20200227200456746.png?x-oss-process=image\/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NjAzMjM1MQ==,size_16,color_FFFFFF,t_70)\nfrom matplotlib.colors import ListedColormap\nfrom matplotlib.font_manager import FontProperties\nfrom sklearn import datasets\nfrom sklearn.neighbors import KDTree\n%matplotlib inline\nfont = FontProperties(fname=&#039;\/Library\/Fonts\/Heiti.ttc&#039;)<\/code><\/pre>\n<h1>\u83b7\u53d6\u6570\u636e<\/h1>\n<pre><code class=\"language-python\">iris_data = datasets.load_iris()\nX = iris_data.data[:, [2, 3]]\ny = iris_data.target\nlabel_list = [&#039;\u5c71\u9e22\u5c3e&#039;, &#039;\u6742\u8272\u9e22\u5c3e&#039;, &#039;\u7ef4\u5409\u5c3c\u4e9a\u9e22\u5c3e&#039;]<\/code><\/pre>\n<h1>\u6784\u5efa\u51b3\u7b56\u8fb9\u754c<\/h1>\n<p><\/p><div id=\"rml_readmorelogin_placeholder\" style=\"position:relative;\"><div id=\"rml_fade_content\" style=\"position: absolute;\r\ntop:-10em;\r\nwidth:100%;\r\nheight:10em;\r\nbackground: -webkit-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: -moz-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: -o-linear-gradient(rgba(255, 255, 255, 0) 0%,#ffffff 100%);\r\nbackground-image: 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value=\"ARU_ReadMoreLogin\\ReadMoreLoginController\" type=\"hidden\"\/><input name=\"_proxy_controller\" value=\"ARU_ReadMoreLogin\\ReadMoreLoginController\" type=\"hidden\"\/><input name=\"_view\" value=\"ARU_ReadMoreLogin\\ReadMoreLoginView\" type=\"hidden\"\/><table class=\"wpf-table-placeholder\"><tbody class=\"wpf-table-placeholder\"><tr class=\"wpf-table-placeholder\"><td class=\"wpf-table-placeholder-input\" width=\"400px\"><table class=\"wpf-table-placeholder\"><tbody class=\"wpf-table-placeholder\"><tr class=\"wpf-table-placeholder\"><th class=\"wpf-table-placeholder-input\"><label class=\"wpf-label\">Username:<\/label><\/th><\/tr><tr class=\"wpf-table-placeholder\"><td class=\"wpf-table-placeholder-input\"><input class=\"regular-text text_input\" name=\"username\" value=\"\" type=\"text\"\/><\/td><\/tr><tr class=\"wpf-table-placeholder\"><th class=\"wpf-table-placeholder-input\"><label class=\"wpf-label\">Password:<\/label><\/th><\/tr><tr class=\"wpf-table-placeholder\"><td 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[&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":3046,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[276,288],"tags":[],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/3045"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3045"}],"version-history":[{"count":0,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/3045\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/media\/3046"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3045"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3045"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3045"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}