{"id":1877,"date":"2019-06-21T22:42:11","date_gmt":"2019-06-21T13:42:11","guid":{"rendered":"https:\/\/tnishimaki.com\/?p=1877"},"modified":"2025-06-12T19:36:30","modified_gmt":"2025-06-12T10:36:30","slug":"python%e3%81%ab%e3%82%88%e3%82%8b%e5%a4%9a%e3%82%af%e3%83%a9%e3%82%b9%e6%b7%b7%e5%90%8c%e8%a1%8c%e5%88%97%e3%81%ae%e4%bd%9c%e6%88%90%e3%81%a8%e8%a9%95%e4%be%a1%e6%8c%87%e6%a8%99%e3%81%ae%e8%a8%88","status":"publish","type":"post","link":"https:\/\/analysis-navi.com\/?p=1877","title":{"rendered":"Python\u306b\u3088\u308b\u591a\u30af\u30e9\u30b9\u6df7\u540c\u884c\u5217\u306e\u4f5c\u6210\u3068\u8a55\u4fa1\u6307\u6a19\u306e\u8a08\u7b97"},"content":{"rendered":"\n<p>Python\u3092\u4f7f\u3063\u3066\u591a\u30af\u30e9\u30b9\u6df7\u540c\u884c\u5217\u3092\u4f5c\u308a\u3001\u8a55\u4fa1\u6307\u6a19\u3092\u8a08\u7b97\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u6df7\u540c\u884c\u5217\u306f<strong>sklearn.metrics<\/strong>\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u4f7f\u3046\u3068\u975e\u5e38\u306b\u7c21\u5358\u306b\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u306e\u3067\u3001Excel\u3067\u8a08\u7b97\u3055\u305b\u308b\u3088\u308a\u3082\u30d1\u30c3\u3068Python\u3067\u3084\u3063\u3066\u3057\u307e\u3044\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u6df7\u540c\u884c\u5217\u306b\u3064\u3044\u3066\u306f<a href=\"https:\/\/analysis-navi.com\/?p=553\">\u3053\u3061\u3089<\/a>\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/analysis-navi.com\/?p=553\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u6df7\u540c\u884c\u5217\u3092\u4f5c\u6210\u3059\u308b<\/h2>\n\n\n\n<p>\u3053\u3053\u3067\u306f\u4e00\u4f8b\u3068\u3057\u3066\u3001<strong><span style=\"background-color: #87cefa;\">\u3058\u3083\u3093\u3051\u3093\u306e\u624b\u306e\u753b\u50cf\u3092\u898b\u305b\u3066\u3001\u305d\u308c\u304c\u300c\u30b0\u30fc\u300d\u300c\u30c1\u30e7\u30ad\u300d\u300c\u30d1\u30fc\u300d\u306e\u3044\u305a\u308c\u306a\u306e\u304b\u3092\u5224\u65ad\u3055\u305b\u308bAI<\/span><\/strong>\u3092\u8003\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305a\u3001\u6df7\u540c\u884c\u5217\u3092\u66f8\u304f\u3068\u3044\u3046\u4e8b\u306f\u3001\u300c\u6b63\u89e3\u30c7\u30fc\u30bf\u300d\u3068\u300c\u63a8\u6e2c\u30c7\u30fc\u30bf\u300d\u304c\u5b58\u5728\u3057\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u3002<br>\u305d\u308c\u3067\u306f\u6b63\u89e3\u30c7\u30fc\u30bf10\u679a\u306b\u5bfe\u3057\u3066\u3001AI\u306e\u63a8\u8ad6\u7d50\u679c\u306f\u4ee5\u4e0b\u306b\u306a\u3063\u305f\u3068\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table table03\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u6b63\u89e3<\/strong><\/td><td><strong>\u63a8\u8ad6<\/strong><\/td><\/tr><tr><td>\u30b0\u30fc<\/td><td>\u30b0\u30fc<\/td><\/tr><tr><td>\u30c1\u30e7\u30ad<\/td><td>\u30c1\u30e7\u30ad<\/td><\/tr><tr><td>\u30d1\u30fc<\/td><td>\u30d1\u30fc<\/td><\/tr><tr><td>\u30d1\u30fc<\/td><td>\u30c1\u30e7\u30ad<\/td><\/tr><tr><td>\u30d1\u30fc<\/td><td>\u30c1\u30e7\u30ad<\/td><\/tr><tr><td>\u30d1\u30fc<\/td><td>\u30c1\u30e7\u30ad<\/td><\/tr><tr><td>\u30b0\u30fc<\/td><td>\u30b0\u30fc<\/td><\/tr><tr><td>\u30c1\u30e7\u30ad<\/td><td>\u30d1\u30fc<\/td><\/tr><tr><td>\u30d1\u30fc<\/td><td>\u30b0\u30fc<\/td><\/tr><tr><td>\u30b0\u30fc<\/td><td>\u30b0\u30fc<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u3053\u306e\u60c5\u5831\u3092\u30ea\u30b9\u30c8\u5316\u3057\u3066\u3001confusion_matrix\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3068\u3002\u3002\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">train = [\"\u30b0\u30fc\",\"\u30c1\u30e7\u30ad\",\"\u30d1\u30fc\",\"\u30d1\u30fc\",\"\u30d1\u30fc\",\"\u30d1\u30fc\",\"\u30b0\u30fc\",\"\u30c1\u30e7\u30ad\",\"\u30d1\u30fc\",\"\u30b0\u30fc\"]\npred = [\"\u30b0\u30fc\",\"\u30c1\u30e7\u30ad\",\"\u30d1\u30fc\",\"\u30c1\u30e7\u30ad\",\"\u30c1\u30e7\u30ad\",\"\u30c1\u30e7\u30ad\",\"\u30b0\u30fc\",\"\u30d1\u30fc\",\"\u30b0\u30fc\",\"\u30b0\u30fc\"]\nname = [\"\u30b0\u30fc\",\"\u30c1\u30e7\u30ad\",\"\u30d1\u30fc\"]\n\nfrom sklearn.metrics import confusion_matrix\nval_mat = confusion_matrix(train, pred, labels=name)<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">[[3 0 0]\n [0 1 1]\n [1 3 1]]<\/pre>\n\n\n\n<p>\u3042\u3063\u3068\u3044\u3046\u9593\u306b\u6df7\u540c\u884c\u5217\u304c\u51fa\u3066\u304d\u307e\u3057\u305f\u3002<br>\u3061\u306a\u307f\u306b\u3001confusion_matrix\u306e<strong><span style=\"background-color: #87cefa;\">\u5f15\u6570\u306elabels\u306b\u9806\u756a\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001\u6df7\u540c\u884c\u5217\u306e\u5217\u3068\u884c\u304c\u305d\u306e\u9806\u756a\u306b\u4e26\u3073\u307e\u3059\u3002<\/span><\/strong><\/p>\n\n\n\n<p>\u307e\u305f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3059\u308c\u3070\u7d50\u679c\u3092Excel\u306b\u5410\u304d\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">conf_mat = pd.DataFrame(val_mat,index=name,columns=name)\nconf_mat.to_csv(\"result.csv\")<\/pre>\n\n\n\n<p>\u4eca\u56de\u306f3\u00d73\u306a\u306e\u3067\u826f\u3044\u3067\u3059\u304c\u3001100\u00d7100\u304f\u3089\u3044\u306b\u306a\u3063\u3066\u304f\u308b\u3068\u51fa\u6765\u4e0a\u304c\u3063\u305f\u8868\u306fExcel\u3067\u898b\u305f\u307b\u3046\u304c\u5206\u304b\u308a\u3084\u3059\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8a55\u4fa1\u6307\u6a19\u3092\u8a08\u7b97\u3059\u308b<\/h2>\n\n\n\n<p>\u3055\u3066\u3001\u304a\u6b21\u306f\u6df7\u540c\u884c\u5217\u306b\u304a\u3051\u308b\u8a55\u4fa1\u6307\u6a19\u306e\u3046\u3061\u3001<strong>\u300c\u6b63\u89e3\u7387\u300d\u300c\u518d\u73fe\u7387\u300d\u300c\u9069\u5408\u7387\u300d\u300cF\u5024\u300d<\/strong>\u3092\u51fa\u3057\u3066\u307f\u307e\u3059\u3002<br>\u3053\u3061\u3089\u3082\u3001\u305d\u308c\u305e\u308c1\u884c\u3067\u8a08\u7b97\u3067\u304d\u308b\u4fbf\u5229\u30e1\u30bd\u30c3\u30c9\u304c\u6e96\u5099\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6b63\u89e3\u7387(Accuracy)<\/h3>\n\n\n\n<p>\u6b63\u89e3\u7387\u306f\u6df7\u540c\u884c\u5217\u5168\u4f53\u306b\u5bfe\u3057\u30661\u3064\u3060\u3051\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">from sklearn.metrics import accuracy_score\nacc_score = accuracy_score(train, pred)\nprint(acc_score)<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">0.5<\/pre>\n\n\n\n<p>\u6b63\u89e3\u7387\u306f0.5\u3068\u8a08\u7b97\u3055\u308c\u307e\u3057\u305f\u3002<br>10\u500b\u4e2d\u30015\u500b\u6b63\u89e3\u3057\u3066\u3044\u308b\u306e\u3067\u6b63\u3057\u3044\u7b54\u3048\u306e\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u518d\u73fe\u7387(Recall)<\/h3>\n\n\n\n<p>\u518d\u73fe\u7387\u306f\u30af\u30e9\u30b9\u3054\u3068\u306b\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">from sklearn.metrics import recall_score\nrec_score = recall_score(train, pred, average=None)\nprint(rec_score)<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">[1.  0.5 0.2]<\/pre>\n\n\n\n<p>\u300c\u30b0\u30fc\u300d\u306e\u518d\u73fe\u7387\u306f1.0\u3001\u300c\u30c1\u30e7\u30ad\u300d\u306e\u518d\u73fe\u7387\u306f0.25\u3001\u300c\u30d1\u30fc\u300d\u306e\u518d\u73fe\u7387\u306f0.5\u3060\u3068\u5206\u304b\u308a\u307e\u3057\u305f\u3002<br>\u3061\u306a\u307f\u306b\u3001<strong><span style=\"background-color: #87cefa;\">\u5168\u3066\u306e\u518d\u73fe\u7387\u3092\u5e73\u5747\u3057\u305f\u5024\u3092\u77e5\u308a\u305f\u3051\u308c\u3070\u3001\u5f15\u6570average=&#8221;macro&#8221;\u3092\u6307\u5b9a<\/span><\/strong>\u3059\u308c\u3070OK\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u9069\u5408\u7387(Precision)<\/h3>\n\n\n\n<p>\u9069\u5408\u7387\u306f\u30af\u30e9\u30b9\u3054\u3068\u306b\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">from sklearn.metrics import precision_score\npre_score = precision_score(train, pred, average=None)\nprint(pre_score)<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">[0.75 0.25 0.5 ]<\/pre>\n\n\n\n<p>\u300c\u30b0\u30fc\u300d\u306e\u9069\u5408\u7387\u306f0.75\u3001\u300c\u30c1\u30e7\u30ad\u300d\u306e\u9069\u5408\u7387\u306f0.25\u3001\u300c\u30d1\u30fc\u300d\u306e\u9069\u5408\u7387\u306f0.5\u3060\u3068\u5206\u304b\u308a\u307e\u3057\u305f\u3002<br>\u3053\u3061\u3089\u3082\u5f15\u6570average=&#8221;macro&#8221;\u3068\u3059\u308c\u3070\u5e73\u5747\u5024\u304c\u51fa\u305b\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">F\u5024<\/h3>\n\n\n\n<p>F\u5024\u3082\u30af\u30e9\u30b9\u3054\u3068\u306b\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">from sklearn.metrics import f1_score\nf1_score = f1_score(train, pred, average=None)\nprint(f1_score)<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\">[0.85714286 0.33333333 0.28571429]<\/pre>\n\n\n\n<p>\u300c\u30b0\u30fc\u300d\u306eF\u5024\u306f\u7d040.86\u3001\u300c\u30c1\u30e7\u30ad\u300d\u306eF\u5024\u306f0.33\u3001\u300c\u30d1\u30fc\u300d\u306eF\u5024\u306f0.29\u3060\u3068\u5206\u304b\u308a\u307e\u3057\u305f\u3002<br>\u3053\u3061\u3089\u3082\u5f15\u6570average=&#8221;macro&#8221;\u3068\u3059\u308c\u3070\u5e73\u5747\u5024\u304c\u51fa\u305b\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u3053\u308c\u3067\u3001Python\u3067\u6df7\u540c\u884c\u5217\u3068\u305d\u306e\u8a55\u4fa1\u6307\u6a19\u304c\u8a08\u7b97\u3067\u304d\u307e\u3057\u305f\u3002<br>\u307b\u3093\u306e\u6570\u884c\u3067\u8a08\u7b97\u3067\u304d\u307e\u3059\u306e\u3067\u3001\u662f\u975e\u6d3b\u7528\u3057\u3066\u9802\u3051\u308c\u3070\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Python\u3092\u4f7f\u3063\u3066\u591a\u30af\u30e9\u30b9\u6df7\u540c\u884c\u5217\u3092\u4f5c\u308a\u3001\u8a55\u4fa1\u6307\u6a19\u3092\u8a08\u7b97\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002 \u6df7\u540c\u884c\u5217\u306fsklearn.metrics\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u4f7f\u3046\u3068\u975e\u5e38\u306b\u7c21\u5358\u306b\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u306e\u3067\u3001Excel\u3067\u8a08\u7b97\u3055\u305b\u308b\u3088\u308a\u3082\u30d1\u30c3\u3068Python [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5115,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"swell_btn_cv_data":"","vkexunit_cta_each_option":"","footnotes":""},"categories":[129],"tags":[101,134,135],"class_list":["post-1877","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-study","tag-ml","tag-python","tag-135"],"_links":{"self":[{"href":"https:\/\/analysis-navi.com\/index.php?rest_route=\/wp\/v2\/posts\/1877","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/analysis-navi.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/analysis-navi.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/analysis-navi.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/analysis-navi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1877"}],"version-history":[{"count":23,"href":"https:\/\/analysis-navi.com\/index.php?rest_route=\/wp\/v2\/posts\/1877\/revisions"}],"predecessor-version":[{"id":5166,"href":"https:\/\/analysis-navi.com\/index.php?rest_route=\/wp\/v2\/posts\/1877\/revisions\/5166"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/analysis-navi.com\/index.php?rest_route=\/wp\/v2\/media\/5115"}],"wp:attachment":[{"href":"https:\/\/analysis-navi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/analysis-navi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/analysis-navi.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}