{"id":616,"date":"2020-09-20T12:16:33","date_gmt":"2020-09-20T03:16:33","guid":{"rendered":"https:\/\/technologyagency.net\/wordpress\/?p=616"},"modified":"2020-11-25T11:00:25","modified_gmt":"2020-11-25T02:00:25","slug":"%e5%88%86%e9%a1%9e%e5%95%8f%e9%a1%8c%e3%82%92%e6%a9%9f%e6%a2%b0%e5%ad%a6%e7%bf%92%e3%81%a7%e8%a7%a3%e3%81%8f","status":"publish","type":"post","link":"https:\/\/technologyagency.net\/wordpress\/2020\/09\/20\/%e5%88%86%e9%a1%9e%e5%95%8f%e9%a1%8c%e3%82%92%e6%a9%9f%e6%a2%b0%e5%ad%a6%e7%bf%92%e3%81%a7%e8%a7%a3%e3%81%8f\/","title":{"rendered":"\u5206\u985e\u554f\u984c\u3092\u6a5f\u68b0\u5b66\u7fd2\u3067\u89e3\u304f"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">\u4eca\u56de\u306e\u76ee\u7684<\/h3>\n\n\n\n<p>\u7406\u8ad6\u3068\u304b\u7d30\u304b\u3044\u3053\u3068\u306f\u5f8c\u56de\u3057\u3001\u53d6\u308a\u6562\u3048\u305a\u5b9f\u884c\u3057\u3066\u307f\u3066\u3001\u6a5f\u68b0\u5b66\u7fd2\u304c\u3069\u306e\u3088\u3046\u306a\u3082\u306e\u304b\u611f\u3058\u3092\u3064\u304b\u3080\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5206\u985e\u554f\u984c\u3068\u306f<\/h3>\n\n\n\n<p>\u30c7\u30fc\u30bf\u3092\u8907\u6570\u306e\u30af\u30e9\u30b9\u306b\u5206\u985e\u3059\u308b\u3053\u3068\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306f\u3001\u6a5f\u68b0\u5b66\u7fd2\u306e\u624b\u6cd5\u306e\u4e00\u3064\u3067\u3042\u308b\u6559\u5e2b\u3042\u308a\u5b66\u7fd2\u3092\u4f7f\u3063\u3066\u5206\u985e\u3059\u308b\u3002\u6559\u5e2b\u3042\u308a\u5b66\u7fd2\u3068\u306f\u3001\u4e88\u3081\u7528\u610f\u3055\u308c\u305f\u554f\u984c\u3068\u6b63\u89e3\u306e\u50be\u5411\u3092\u5b66\u7fd2\u3059\u308b\u3053\u3068\u3067\u3001\u672a\u77e5\u306e\u554f\u984c\u306b\u5bfe\u3059\u308b\u6b63\u89e3\u3092\u63a8\u6e2c\u3059\u308b\u624b\u6cd5\u3092\u3044\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5fc5\u8981\u306a\u3082\u306e<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8<\/li><li>\u5206\u985e\u5668\u3000\uff08\u30c7\u30fc\u30bf\u3092\u5206\u985e\u3059\u308b\u6a5f\u68b0\u5b66\u7fd2\u30e2\u30c7\u30eb\uff09<ul><li>k-\u8fd1\u508d\u6cd5\uff08k-NN\uff09<\/li><li>\u6c7a\u5b9a\u6728<\/li><li>\u30b5\u30dd\u30fc\u30c8\u30d9\u30af\u30bf\u30fc\u30de\u30b7\u30f3\uff08SVM\uff09<\/li><li>\u30ed\u30b8\u30b9\u30c6\u30a3\u30c3\u30af\u56de\u5e30\u306a\u3069<\/li><\/ul><\/li><\/ul>\n\n\n\n<p>\u30c7\u30fc\u30bf\u306e\u50be\u5411\u3092\u5b66\u7fd2\u3055\u305b\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001\u76ee\u7684\u306b\u5408\u308f\u305b\u305f\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3092\u4e8b\u524d\u306b\u7528\u610f\u3059\u308b\u3002\u5206\u985e\u5668\u306f\u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u3057\u3066\u65e2\u306b\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u3092\u5229\u7528\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u6a5f\u68b0\u5b66\u7fd2\u3092\u8a66\u3059\u3068\u304d\u3001\u307e\u305a\u306f\u30c7\u30fc\u30bf\u3092\u6e96\u5099\u3059\u308b\u3053\u3068\u304c\u4e00\u3064\u306e\u30cf\u30fc\u30c9\u30eb\u306b\u306a\u308b\u304c\u3001<a href=\"https:\/\/scikit-learn.org\/stable\/\">scikit-learn<\/a>\u306b\u306f\u3044\u304f\u3064\u304b\u306e\u6a19\u6e96\u7684\u306a\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u304c\u4ed8\u5c5e\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u81ea\u5206\u3067\u7528\u610f\u3057\u306a\u304f\u3066\u3082\u8a66\u3059\u3053\u3068\u304c\u51fa\u6765\u308b\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306fsklearn.datasets\u306eload_iris\uff08\u30a2\u30e4\u30e1\u306e\u82b1\u306e\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\uff09\u3092\u4f7f\u7528\u3059\u308b\u3002\u304c\u304f\u3084\u82b1\u3073\u3089\u306e\u5927\u304d\u3055\u3068\u30a2\u30e4\u30e1\u306e\u7a2e\u985e\u304c\u30c7\u30fc\u30bf\u306b\u542b\u307e\u308c\u3066\u3044\u3066\u3001\u304c\u304f\u3084\u82b1\u3073\u3089\u306e\u5927\u304d\u3055\u304b\u3089\u30a2\u30e4\u30e1\u306e\u7a2e\u985e\u3092\u4e88\u6e2c\u3059\u308b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Python\u3067\u5b9f\u88c5<\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nfrom sklearn.datasets import load_iris\n\niris = load_iris()\n# \u30c7\u30fc\u30bf\u306e\u5185\u5bb9\u3092\u78ba\u8a8d\u3059\u308b\niris\n<\/pre><\/div>\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\n{&#039;DESCR&#039;: &#039;\uff08\u30c7\u30fc\u30bf\u306e\u8aac\u660e\u306f\u7701\u7565\uff09&#039;,\n &#039;data&#039;: array(&#x5B;&#x5B;5.1, 3.5, 1.4, 0.2],\n        &#x5B;4.9, 3. , 1.4, 0.2],\n        &#x5B;4.7, 3.2, 1.3, 0.2],\n        &#x5B;4.6, 3.1, 1.5, 0.2],\n        &#x5B;5. , 3.6, 1.4, 0.2],\n        \uff08\u4e2d\u7565\uff09\n        &#x5B;5.9, 3. , 5.1, 1.8]]),\n &#039;feature_names&#039;: &#x5B;&#039;sepal length (cm)&#039;, # \u304c\u304f\u306e\u9577\u3055\n  &#039;sepal width (cm)&#039;,                   # \u304c\u304f\u306e\u5e45\n  &#039;petal length (cm)&#039;,                  # \u82b1\u3073\u3089\u306e\u9577\u3055\n  &#039;petal width (cm)&#039;],                  # \u82b1\u3073\u3089\u306e\u5e45\n &#039;filename&#039;: &#039;\/usr\/local\/lib\/python3.6\/dist-packages\/sklearn\/datasets\/data\/iris.csv&#039;,\n # \u30a2\u30e4\u30e1\u306e\u7a2e\u985e\u30000: &#039;setosa&#039;, 1: &#039;versicolor&#039;, 2: &#039;virginica&#039;\n &#039;target&#039;: array(&#x5B;0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\n        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\n        0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,\n        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,\n        1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,\n        2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,\n        2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]),\n &#039;target_names&#039;: array(&#x5B;&#039;setosa&#039;, &#039;versicolor&#039;, &#039;virginica&#039;], dtype=&#039;&lt;U10&#039;)} \n<\/pre><\/div>\n\n\n<p>\u3053\u306e\u5f8c\u306e\u30c7\u30fc\u30bf\u306e\u89e3\u6790\u3092\u884c\u3044\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u3001<a href=\"https:\/\/pandas.pydata.org\/\">pandas<\/a>\u306eDataFrame\u306b\u5909\u63db\u3059\u308b\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nimport pandas as pd\n\n# DataFrame\u306b\u5909\u63db\u3059\u308b\ndf = pd.DataFrame(iris.data, columns=iris.feature_names)\ndf&#x5B;&#039;target&#039;] = iris.target_names&#x5B;iris.target]\n\n# \u5148\u982d5\u884c\u3092\u8868\u793a\u3059\u308b\ndf.head()\n<\/pre><\/div>\n\n\n<figure class=\"wp-block-table is-style-regular\"><table><thead><tr><th><\/th><th>sepal length (cm)<\/th><th>sepal width (cm)<\/th><th>petal length (cm)<\/th><th>petal width (cm)<\/th><th>target<\/th><\/tr><\/thead><tbody><tr><th>0<\/th><td>5.1<\/td><td>3.5<\/td><td>1.4<\/td><td>0.2<\/td><td>setosa<\/td><\/tr><tr><th>1<\/th><td>4.9<\/td><td>3.0<\/td><td>1.4<\/td><td>0.2<\/td><td>setosa<\/td><\/tr><tr><th>2<\/th><td>4.7<\/td><td>3.2<\/td><td>1.3<\/td><td>0.2<\/td><td>setosa<\/td><\/tr><tr><th>3<\/th><td>4.6<\/td><td>3.1<\/td><td>1.5<\/td><td>0.2<\/td><td>setosa<\/td><\/tr><tr><th>4<\/th><td>5.0<\/td><td>3.6<\/td><td>1.4<\/td><td>0.2<\/td><td>setosa<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u3056\u3063\u3068\u30c7\u30fc\u30bf\u306e\u5185\u5bb9\u3092\u78ba\u8a8d\u3059\u308b\u3002\u6b20\u640d\u5024\u3082\u306a\u3044\u3057\u305d\u306e\u307e\u307e\u4f7f\u3048\u308b\u3088\u3046\u306b\u65e2\u306b\u6574\u3048\u3089\u308c\u3066\u3044\u308b\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\ndf.info()\n\nRangeIndex: 150 entries, 0 to 149\nData columns (total 5 columns):\n #   Column             Non-Null Count  Dtype  \n---  ------             --------------  -----  \n 0   sepal length (cm)  150 non-null    float64\n 1   sepal width (cm)   150 non-null    float64\n 2   petal length (cm)  150 non-null    float64\n 3   petal width (cm)   150 non-null    float64\n 4   target             150 non-null    object \ndtypes: float64(4), object(1)\nmemory usage: 6.0+ KB\n<\/pre><\/div>\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\ndf.describe()\n<\/pre><\/div>\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><\/td><td>sepal length (cm)<\/td><td>sepal width (cm)<\/td><td>petal length (cm)<\/td><td>petal width (cm)<\/td><\/tr><tr><td>count<\/td><td>150<\/td><td>150<\/td><td>150<\/td><td>150<\/td><\/tr><tr><td>mean<\/td><td>5.843333<\/td><td>3.057333<\/td><td>3.758<\/td><td>1.199333<\/td><\/tr><tr><td>std<\/td><td>0.828066<\/td><td>0.435866<\/td><td>1.765298<\/td><td>0.762238<\/td><\/tr><tr><td>min<\/td><td>4.3<\/td><td>2<\/td><td>1<\/td><td>0.1<\/td><\/tr><tr><td>25%<\/td><td>5.1<\/td><td>2.8<\/td><td>1.6<\/td><td>0.3<\/td><\/tr><tr><td>50%<\/td><td>5.8<\/td><td>3<\/td><td>4.35<\/td><td>1.3<\/td><\/tr><tr><td>75%<\/td><td>6.4<\/td><td>3.3<\/td><td>5.1<\/td><td>1.8<\/td><\/tr><tr><td>max<\/td><td>7.9<\/td><td>4.4<\/td><td>6.9<\/td><td>2.5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\ndf&#x5B;&#039;target&#039;].value_counts()\n\nvirginica     50\nsetosa        50\nversicolor    50\nName: target, dtype: int64\n<\/pre><\/div>\n\n\n<p>\u6b21\u306b\u8aac\u660e\u5909\u6570\u3068\u76ee\u7684\u5909\u6570\u306b\u5206\u3051\u308b\u3002<br>\u8aac\u660e\u5909\u6570\u3068\u306f\u76ee\u7684\u5909\u6570\u3092\u8aac\u660e\u3059\u308b\u5909\u6570\u306e\u3053\u3068\u3002\u3053\u308c\u3092\u3082\u3068\u306b\u4e88\u6e2c\u3059\u308b\u3002<br>\u76ee\u7684\u5909\u6570\u3068\u306f\u4e88\u6e2c\u3057\u305f\u3044\u5909\u6570\u306e\u3053\u3068\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\n# \u8aac\u660e\u5909\u6570\nX = df.drop(&#039;target&#039;, axis=1)\n# \u76ee\u7684\u5909\u6570\ny = df&#x5B;&#039;target&#039;]\n<\/pre><\/div>\n\n\n<p>\u3055\u3089\u306b\u3001\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u7528\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3068\u30c6\u30b9\u30c8\u7528\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306b\u5206\u3051\u308b\u3002\u672a\u77e5\u306e\u5024\u306b\u3064\u3044\u3066\u4e88\u6e2c\u3059\u308b\u6027\u80fd\u3092\u30c6\u30b9\u30c8\u3059\u308b\u305f\u3081\u3001\u30c6\u30b9\u30c8\u7528\u306e\u30c7\u30fc\u30bf\u306f\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3067\u4f7f\u7528\u3057\u3066\u306f\u3044\u3051\u306a\u3044\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nfrom sklearn.model_selection import train_test_split\n\nX_train, X_test, y_train, y_test = train_test_split(X, y, random_state=0)\n<\/pre><\/div>\n\n\n<p>\u5206\u985e\u5668\u306b\u306f\u30b5\u30dd\u30fc\u30c8\u30d9\u30af\u30bf\u30fc\u30de\u30b7\u30f3\u3092\u4f7f\u7528\u3059\u308b\u3002<a href=\"https:\/\/scikit-learn.org\/stable\/\">scikit-learn<\/a>\u306b<a href=\"https:\/\/scikit-learn.org\/stable\/modules\/generated\/sklearn.svm.SVC.html\">\u30b5\u30dd\u30fc\u30c8\u30d9\u30af\u30bf\u30fc\u30de\u30b7\u30f3\u3092\u5b9f\u88c5\u3057\u305f\u30e9\u30a4\u30d6\u30e9\u30ea<\/a>\u304c\u3042\u308b\u306e\u3067\u3001\u305d\u308c\u3092\u305d\u306e\u307e\u307e\u4f7f\u7528\u3059\u308b\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nfrom sklearn.svm import SVC\n\nsvc = SVC()\n# \u554f\u984c\u3068\u6b63\u89e3\u306e\u50be\u5411\u3092\u5b66\u7fd2\u3055\u305b\u3001\u5b66\u7fd2\u6e08\u307f\u30e2\u30c7\u30eb\u3092\u4f5c\u6210\u3059\u308b\nsvc.fit(X_train, y_train)\n<\/pre><\/div>\n\n\n<p>\u5b66\u7fd2\u6e08\u307f\u30e2\u30c7\u30eb\u304c\u4f5c\u6210\u51fa\u6765\u305f\u3089\u3001\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\u3092\u4f7f\u3063\u3066\u30a2\u30e4\u30e1\u306e\u7a2e\u985e\u3092\u4e88\u6e2c\u3057\u3066\u307f\u308b\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nsvc.predict(X_test)\n\narray(&#x5B;&#039;virginica&#039;, &#039;versicolor&#039;, &#039;setosa&#039;, &#039;virginica&#039;, &#039;setosa&#039;,\n       &#039;virginica&#039;, &#039;setosa&#039;, &#039;versicolor&#039;, &#039;versicolor&#039;, &#039;versicolor&#039;,\n       &#039;virginica&#039;, &#039;versicolor&#039;, &#039;versicolor&#039;, &#039;versicolor&#039;,\n       &#039;versicolor&#039;, &#039;setosa&#039;, &#039;versicolor&#039;, &#039;versicolor&#039;, &#039;setosa&#039;,\n       &#039;setosa&#039;, &#039;virginica&#039;, &#039;versicolor&#039;, &#039;setosa&#039;, &#039;setosa&#039;,\n       &#039;virginica&#039;, &#039;setosa&#039;, &#039;setosa&#039;, &#039;versicolor&#039;, &#039;versicolor&#039;,\n       &#039;setosa&#039;, &#039;virginica&#039;, &#039;versicolor&#039;, &#039;setosa&#039;, &#039;virginica&#039;,\n       &#039;virginica&#039;, &#039;versicolor&#039;, &#039;setosa&#039;, &#039;virginica&#039;], dtype=object)\n<\/pre><\/div>\n\n\n<p>\u3069\u306e\u304f\u3089\u3044\u6b63\u89e3\u3057\u3066\u3044\u308b\u306e\u304b\u306f\u4e0b\u8a18\u3067\u78ba\u8a8d\u51fa\u6765\u308b\u3002<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: python; title: ; notranslate\" title=\"\">\nsvc.score(X_test, y_test)\n\n0.9736842105263158\n<\/pre><\/div>\n\n\n<p>97\uff05\u6b63\u3057\u3044\u30a2\u30e4\u30e1\u306e\u7a2e\u985e\u3092\u4e88\u6e2c\u51fa\u6765\u3066\u3044\u308b\u3002<\/p>\n\n\n\n<h3 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\u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[51],"class_list":["post-616","post","type-post","status-publish","format-standard","hentry","category-python","tag-51"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u5206\u985e\u554f\u984c\u3092\u6a5f\u68b0\u5b66\u7fd2\u3067\u89e3\u304f - I want to lead an easy life.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/technologyagency.net\/wordpress\/2020\/09\/20\/\u5206\u985e\u554f\u984c\u3092\u6a5f\u68b0\u5b66\u7fd2\u3067\u89e3\u304f\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" 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