{"id":45477,"date":"2025-08-14T13:54:57","date_gmt":"2025-08-14T04:54:57","guid":{"rendered":"https:\/\/techgym.jp\/?p=45477"},"modified":"2025-08-14T13:55:01","modified_gmt":"2025-08-14T04:55:01","slug":"numpy-slice","status":"publish","type":"post","link":"https:\/\/techgym.jp\/column\/numpy-slice\/","title":{"rendered":"NumPy\u914d\u5217\u306e\u30b9\u30e9\u30a4\u30b9\u5fb9\u5e95\u89e3\u8aac\uff1a\u90e8\u5206\u914d\u5217\u306e\u9078\u629e\u3068\u52b9\u7387\u7684\u306a\u4ee3\u5165"},"content":{"rendered":"\n<div id=\"model-response-message-contentr_fd56965e2f1f3996\" class=\"markdown markdown-main-panel stronger enable-updated-hr-color\" dir=\"ltr\"><br \/>\n<p>\u00a0<\/p>\n<p>\u30c7\u30fc\u30bf\u30b5\u30a4\u30a8\u30f3\u30b9\u3084\u6a5f\u68b0\u5b66\u7fd2\u306b\u304a\u3044\u3066\u3001<b>NumPy\u914d\u5217\uff08ndarray\uff09<\/b> \u306e\u64cd\u4f5c\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u7279\u306b\u3001\u914d\u5217\u306e\u7279\u5b9a\u306e\u90e8\u5206\u3092\u53d6\u308a\u51fa\u3057\u305f\u308a\u3001\u307e\u3068\u3081\u3066\u5024\u3092\u5909\u66f4\u3057\u305f\u308a\u3059\u308b\u969b\u306b\u306f\u3001<b>\u30b9\u30e9\u30a4\u30b9<\/b>\u304c\u4e0d\u53ef\u6b20\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001NumPy\u914d\u5217\u306b\u304a\u3051\u308b\u30b9\u30e9\u30a4\u30b9\u3092\u7528\u3044\u305f\u90e8\u5206\u914d\u5217\u306e\u9078\u629e\u65b9\u6cd5\u3068\u3001\u52b9\u7387\u7684\u306a\u5024\u306e\u4ee3\u5165\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<hr \/>\n<p>\u00a0<\/p>\n<h2>NumPy\u30b9\u30e9\u30a4\u30b9\u3068\u306f\uff1f<\/h2>\n<p>\u00a0<\/p>\n<p>NumPy\u306e\u30b9\u30e9\u30a4\u30b9\u306f\u3001Python\u306e\u30ea\u30b9\u30c8\u306e\u30b9\u30e9\u30a4\u30b9\u306b\u4f3c\u3066\u3044\u307e\u3059\u304c\u3001\u591a\u6b21\u5143\u914d\u5217\u306b\u9069\u7528\u3067\u304d\u308b\u70b9\u304c\u5927\u304d\u304f\u7570\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u914d\u5217\u304b\u3089\u7279\u5b9a\u306e<b>\u884c\u3001\u5217\u3001\u307e\u305f\u306f\u4efb\u610f\u306e\u77e9\u5f62\u9818\u57df<\/b>\u3092\u67d4\u8edf\u306b\u62bd\u51fa\u3067\u304d\u307e\u3059\u3002\u30b9\u30e9\u30a4\u30b9\u306e\u57fa\u672c\u5f62\u5f0f\u306f <code>[\u958b\u59cb\u30a4\u30f3\u30c7\u30c3\u30af\u30b9:\u7d42\u4e86\u30a4\u30f3\u30c7\u30c3\u30af\u30b9:\u30b9\u30c6\u30c3\u30d7]<\/code> \u3067\u3001\u7d42\u4e86\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u7bc4\u56f2\u306b\u542b\u307e\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u00a0<\/p>\n<h3>\u57fa\u672c\u7684\u306a\u30b9\u30e9\u30a4\u30b9\u306e\u4f7f\u3044\u65b9<\/h3>\n<p>\u00a0<\/p>\n<p>\u307e\u305a\u306f\u4e00\u6b21\u5143\u914d\u5217\u3067\u30b9\u30e9\u30a4\u30b9\u306e\u57fa\u672c\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<div class=\"code-block ng-tns-c2110935761-202 ng-animate-disabled ng-trigger ng-trigger-codeBlockRevealAnimation\">\n<div class=\"code-block-decoration header-formatted gds-title-s ng-tns-c2110935761-202 ng-star-inserted\"><span class=\"ng-tns-c2110935761-202\">Python<\/span>\n<div class=\"buttons ng-tns-c2110935761-202 ng-star-inserted\">\u00a0<\/div>\n<\/div>\n<div class=\"formatted-code-block-internal-container ng-tns-c2110935761-202\">\n<div class=\"animated-opacity ng-tns-c2110935761-202\">\n<pre class=\"ng-tns-c2110935761-202\"><code class=\"code-container formatted ng-tns-c2110935761-202\" role=\"text\" data-test-id=\"code-content\"><span class=\"hljs-keyword\">import<\/span> numpy <span class=\"hljs-keyword\">as<\/span> np\n\narr = np.array([<span class=\"hljs-number\">0<\/span>, <span class=\"hljs-number\">10<\/span>, <span class=\"hljs-number\">20<\/span>, <span class=\"hljs-number\">30<\/span>, <span class=\"hljs-number\">40<\/span>, <span class=\"hljs-number\">50<\/span>, <span class=\"hljs-number\">60<\/span>, <span class=\"hljs-number\">70<\/span>, <span class=\"hljs-number\">80<\/span>, <span class=\"hljs-number\">90<\/span>])\n\n<span class=\"hljs-comment\"># \u30a4\u30f3\u30c7\u30c3\u30af\u30b92\u304b\u30895\u307e\u3067\uff085\u306f\u542b\u307e\u306a\u3044\uff09<\/span>\nsub_arr1 = arr[<span class=\"hljs-number\">2<\/span>:<span class=\"hljs-number\">5<\/span>]\nprint(<span class=\"hljs-string\">f\"2\u304b\u30895\u307e\u3067: <span class=\"hljs-subst\">{sub_arr1}<\/span>\"<\/span>) <span class=\"hljs-comment\"># \u51fa\u529b: [20 30 40]<\/span>\n\n<span class=\"hljs-comment\"># \u6700\u521d\u304b\u3089\u30a4\u30f3\u30c7\u30c3\u30af\u30b94\u307e\u3067<\/span>\nsub_arr2 = arr[:<span class=\"hljs-number\">5<\/span>]\nprint(<span class=\"hljs-string\">f\"\u6700\u521d\u304b\u30895\u307e\u3067: <span class=\"hljs-subst\">{sub_arr2}<\/span>\"<\/span>) <span class=\"hljs-comment\"># \u51fa\u529b: [0 10 20 30 40]<\/span>\n\n<span class=\"hljs-comment\"># \u30a4\u30f3\u30c7\u30c3\u30af\u30b95\u304b\u3089\u6700\u5f8c\u307e\u3067<\/span>\nsub_arr3 = arr[<span class=\"hljs-number\">5<\/span>:]\nprint(<span class=\"hljs-string\">f\"5\u304b\u3089\u6700\u5f8c\u307e\u3067: <span class=\"hljs-subst\">{sub_arr3}<\/span>\"<\/span>) <span class=\"hljs-comment\"># \u51fa\u529b: [50 60 70 80 90]<\/span>\n\n<span class=\"hljs-comment\"># 2\u3064\u98db\u3070\u3057\u3067\u53d6\u5f97<\/span>\nsub_arr4 = arr[::<span class=\"hljs-number\">2<\/span>]\nprint(<span class=\"hljs-string\">f\"2\u3064\u98db\u3070\u3057: <span class=\"hljs-subst\">{sub_arr4}<\/span>\"<\/span>) <span class=\"hljs-comment\"># \u51fa\u529b: [ 0 20 40 60 80]<\/span>\n<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<hr \/>\n<p>\u00a0<\/p>\n<h2>\u591a\u6b21\u5143NumPy\u914d\u5217\u306e\u30b9\u30e9\u30a4\u30b9<\/h2>\n<p>\u00a0<\/p>\n<p>NumPy\u914d\u5217\u306e\u771f\u4fa1\u306f\u3001\u591a\u6b21\u5143\u30c7\u30fc\u30bf\u306b\u5bfe\u3059\u308b\u30b9\u30e9\u30a4\u30b9\u3067\u767a\u63ee\u3055\u308c\u307e\u3059\u3002\u5404\u6b21\u5143\u306b\u5bfe\u3057\u3066\u500b\u5225\u306b\u30b9\u30e9\u30a4\u30b9\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p>\u00a0<\/p>\n<h3>\u7279\u5b9a\u306e\u884c\u30fb\u5217\u306e\u9078\u629e<\/h3>\n<p>\u00a0<\/p>\n<p><code>:<\/code> (\u30b3\u30ed\u30f3) \u3092\u5358\u72ec\u3067\u4f7f\u3046\u3068\u3001\u300c\u305d\u306e\u6b21\u5143\u306e\u3059\u3079\u3066\u300d\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n<div class=\"code-block ng-tns-c2110935761-203 ng-animate-disabled ng-trigger ng-trigger-codeBlockRevealAnimation\">\n<div class=\"code-block-decoration header-formatted gds-title-s ng-tns-c2110935761-203 ng-star-inserted\"><span class=\"ng-tns-c2110935761-203\">Python<\/span>\n<div class=\"buttons ng-tns-c2110935761-203 ng-star-inserted\">\u00a0<\/div>\n<\/div>\n<div class=\"formatted-code-block-internal-container ng-tns-c2110935761-203\">\n<div class=\"animated-opacity ng-tns-c2110935761-203\">\n<pre class=\"ng-tns-c2110935761-203\"><code class=\"code-container formatted ng-tns-c2110935761-203\" role=\"text\" data-test-id=\"code-content\"><span class=\"hljs-keyword\">import<\/span> numpy <span class=\"hljs-keyword\">as<\/span> np\n\narr_2d = np.array([[<span class=\"hljs-number\">10<\/span>, <span class=\"hljs-number\">20<\/span>, <span class=\"hljs-number\">30<\/span>],\n                   [<span class=\"hljs-number\">40<\/span>, <span class=\"hljs-number\">50<\/span>, <span class=\"hljs-number\">60<\/span>],\n                   [<span class=\"hljs-number\">70<\/span>, <span class=\"hljs-number\">80<\/span>, <span class=\"hljs-number\">90<\/span>]])\n\n<span class=\"hljs-comment\"># 1\u884c\u76ee\u5168\u4f53\u3092\u53d6\u5f97 (\u30a4\u30f3\u30c7\u30c3\u30af\u30b90\u304b\u3089\u59cb\u307e\u308b)<\/span>\nrow_1 = arr_2d[<span class=\"hljs-number\">0<\/span>, :]\nprint(<span class=\"hljs-string\">f\"1\u884c\u76ee: <span class=\"hljs-subst\">{row_1}<\/span>\"<\/span>) <span class=\"hljs-comment\"># \u51fa\u529b: [10 20 30]<\/span>\n\n<span class=\"hljs-comment\"># 2\u5217\u76ee\u5168\u4f53\u3092\u53d6\u5f97 (\u30a4\u30f3\u30c7\u30c3\u30af\u30b90\u304b\u3089\u59cb\u307e\u308b)<\/span>\ncol_2 = arr_2d[:, <span class=\"hljs-number\">1<\/span>]\nprint(<span class=\"hljs-string\">f\"2\u5217\u76ee: <span class=\"hljs-subst\">{col_2}<\/span>\"<\/span>) <span class=\"hljs-comment\"># \u51fa\u529b: [20 50 80]<\/span>\n<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<p>\u00a0<\/p>\n<h3>\u90e8\u5206\u914d\u5217\uff08\u30b5\u30d6\u30a2\u30ec\u30a4\uff09\u306e\u9078\u629e<\/h3>\n<p>\u00a0<\/p>\n<p>\u8907\u6570\u306e\u6b21\u5143\u306b\u30b9\u30e9\u30a4\u30b9\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u914d\u5217\u306e\u4efb\u610f\u306e\u77e9\u5f62\u90e8\u5206\u3092\u62bd\u51fa\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"code-block ng-tns-c2110935761-204 ng-animate-disabled ng-trigger ng-trigger-codeBlockRevealAnimation\">\n<div class=\"code-block-decoration header-formatted gds-title-s ng-tns-c2110935761-204 ng-star-inserted\"><span class=\"ng-tns-c2110935761-204\">Python<\/span>\n<div class=\"buttons ng-tns-c2110935761-204 ng-star-inserted\">\u00a0<\/div>\n<\/div>\n<div class=\"formatted-code-block-internal-container ng-tns-c2110935761-204\">\n<div class=\"animated-opacity ng-tns-c2110935761-204\">\n<pre class=\"ng-tns-c2110935761-204\"><code class=\"code-container formatted ng-tns-c2110935761-204\" role=\"text\" data-test-id=\"code-content\"><span class=\"hljs-keyword\">import<\/span> numpy <span class=\"hljs-keyword\">as<\/span> np\n\narr_2d = np.array([[<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">4<\/span>],\n                   [<span class=\"hljs-number\">5<\/span>, <span class=\"hljs-number\">6<\/span>, <span class=\"hljs-number\">7<\/span>, <span class=\"hljs-number\">8<\/span>],\n                   [<span class=\"hljs-number\">9<\/span>, <span class=\"hljs-number\">10<\/span>, <span class=\"hljs-number\">11<\/span>, <span class=\"hljs-number\">12<\/span>]])\n\n<span class=\"hljs-comment\"># 1\u884c\u76ee\u304b\u30892\u884c\u76ee\u3001\u304b\u30642\u5217\u76ee\u304b\u30893\u5217\u76ee\u306e\u90e8\u5206\u914d\u5217<\/span>\nsub_arr = arr_2d[<span class=\"hljs-number\">0<\/span>:<span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">1<\/span>:<span class=\"hljs-number\">3<\/span>]\nprint(<span class=\"hljs-string\">f\"\u90e8\u5206\u914d\u5217:\\n<span class=\"hljs-subst\">{sub_arr}<\/span>\"<\/span>)\n<span class=\"hljs-comment\"># \u51fa\u529b:<\/span>\n<span class=\"hljs-comment\"># [[2 3]<\/span>\n<span class=\"hljs-comment\">#  [6 7]]<\/span>\n\n<span class=\"hljs-comment\"># \u6700\u5f8c\u306e\u884c\u3068\u5217\u3092\u53d6\u5f97<\/span>\nlast_row_col = arr_2d[-<span class=\"hljs-number\">1<\/span>, -<span class=\"hljs-number\">1<\/span>]\nprint(<span class=\"hljs-string\">f\"\u6700\u5f8c\u306e\u8981\u7d20: <span class=\"hljs-subst\">{last_row_col}<\/span>\"<\/span>) <span class=\"hljs-comment\"># \u51fa\u529b: 12<\/span>\n<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<hr \/>\n<p>\u00a0<\/p>\n<h2>\u30b9\u30e9\u30a4\u30b9\u306b\u3088\u308b\u90e8\u5206\u914d\u5217\u3078\u306e\u4ee3\u5165<\/h2>\n<p>\u00a0<\/p>\n<p>NumPy\u306e\u30b9\u30e9\u30a4\u30b9\u306e\u5f37\u529b\u306a\u6a5f\u80fd\u306e\u4e00\u3064\u306f\u3001\u62bd\u51fa\u3057\u305f\u90e8\u5206\u914d\u5217\u306b\u5bfe\u3057\u3066\u76f4\u63a5\u5024\u3092\u4ee3\u5165\u3067\u304d\u308b\u70b9\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u914d\u5217\u306e\u4e00\u90e8\u3092\u4e00\u62ec\u3067\u5909\u66f4\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u00a0<\/p>\n<h3>\u5358\u4e00\u306e\u5024\u3092\u4ee3\u5165<\/h3>\n<p>\u00a0<\/p>\n<div class=\"code-block ng-tns-c2110935761-205 ng-animate-disabled ng-trigger ng-trigger-codeBlockRevealAnimation\">\n<div class=\"code-block-decoration header-formatted gds-title-s ng-tns-c2110935761-205 ng-star-inserted\"><span class=\"ng-tns-c2110935761-205\">Python<\/span>\n<div class=\"buttons ng-tns-c2110935761-205 ng-star-inserted\">\u00a0<\/div>\n<\/div>\n<div class=\"formatted-code-block-internal-container ng-tns-c2110935761-205\">\n<div class=\"animated-opacity ng-tns-c2110935761-205\">\n<pre class=\"ng-tns-c2110935761-205\"><code class=\"code-container formatted ng-tns-c2110935761-205\" role=\"text\" data-test-id=\"code-content\"><span class=\"hljs-keyword\">import<\/span> numpy <span class=\"hljs-keyword\">as<\/span> np\n\narr = np.array([[<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>],\n                [<span class=\"hljs-number\">4<\/span>, <span class=\"hljs-number\">5<\/span>, <span class=\"hljs-number\">6<\/span>],\n                [<span class=\"hljs-number\">7<\/span>, <span class=\"hljs-number\">8<\/span>, <span class=\"hljs-number\">9<\/span>]])\n\n<span class=\"hljs-comment\"># 1\u884c\u76ee\u5168\u4f53\u30920\u306b\u4ee3\u5165<\/span>\narr[<span class=\"hljs-number\">0<\/span>, :] = <span class=\"hljs-number\">0<\/span>\nprint(<span class=\"hljs-string\">f\"1\u884c\u76ee\u30920\u306b\u4ee3\u5165\u5f8c:\\n<span class=\"hljs-subst\">{arr}<\/span>\"<\/span>)\n<span class=\"hljs-comment\"># \u51fa\u529b:<\/span>\n<span class=\"hljs-comment\"># [[0 0 0]<\/span>\n<span class=\"hljs-comment\">#  [4 5 6]<\/span>\n<span class=\"hljs-comment\">#  [7 8 9]]<\/span>\n<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<p>\u00a0<\/p>\n<h3>\u5225\u306e\u914d\u5217\u3092\u4ee3\u5165<\/h3>\n<p>\u00a0<\/p>\n<p>\u4ee3\u5165\u3059\u308b\u914d\u5217\u306e\u5f62\u72b6\u304c\u3001\u30b9\u30e9\u30a4\u30b9\u3067\u9078\u629e\u3057\u305f\u90e8\u5206\u914d\u5217\u306e\u5f62\u72b6\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"code-block ng-tns-c2110935761-206 ng-animate-disabled ng-trigger ng-trigger-codeBlockRevealAnimation\">\n<div class=\"code-block-decoration header-formatted gds-title-s ng-tns-c2110935761-206 ng-star-inserted\"><span class=\"ng-tns-c2110935761-206\">Python<\/span>\n<div class=\"buttons ng-tns-c2110935761-206 ng-star-inserted\">\u00a0<\/div>\n<\/div>\n<div class=\"formatted-code-block-internal-container ng-tns-c2110935761-206\">\n<div class=\"animated-opacity ng-tns-c2110935761-206\">\n<pre class=\"ng-tns-c2110935761-206\"><code class=\"code-container formatted ng-tns-c2110935761-206\" role=\"text\" data-test-id=\"code-content\"><span class=\"hljs-keyword\">import<\/span> numpy <span class=\"hljs-keyword\">as<\/span> np\n\narr = np.array([[<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">4<\/span>],\n                [<span class=\"hljs-number\">5<\/span>, <span class=\"hljs-number\">6<\/span>, <span class=\"hljs-number\">7<\/span>, <span class=\"hljs-number\">8<\/span>],\n                [<span class=\"hljs-number\">9<\/span>, <span class=\"hljs-number\">10<\/span>, <span class=\"hljs-number\">11<\/span>, <span class=\"hljs-number\">12<\/span>]])\n\n<span class=\"hljs-comment\"># 2\u884c\u76ee\u30683\u884c\u76ee\u306e2,3\u5217\u76ee\u306b\u65b0\u3057\u3044\u5024\u3092\u4ee3\u5165<\/span>\narr[<span class=\"hljs-number\">1<\/span>:<span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">1<\/span>:<span class=\"hljs-number\">3<\/span>] = np.array([[<span class=\"hljs-number\">99<\/span>, <span class=\"hljs-number\">88<\/span>],\n                          [<span class=\"hljs-number\">77<\/span>, <span class=\"hljs-number\">66<\/span>]])\nprint(<span class=\"hljs-string\">f\"\u90e8\u5206\u4ee3\u5165\u5f8c\u306e\u914d\u5217:\\n<span class=\"hljs-subst\">{arr}<\/span>\"<\/span>)\n<span class=\"hljs-comment\"># \u51fa\u529b:<\/span>\n<span class=\"hljs-comment\"># [[ 1,  2,  3,  4],<\/span>\n<span class=\"hljs-comment\">#  [ 5, 99, 88,  8],<\/span>\n<span class=\"hljs-comment\">#  [ 9, 77, 66, 12]]<\/span>\n<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<hr \/>\n<p>\u00a0<\/p>\n<h2>\u30b9\u30e9\u30a4\u30b9\u306e\u300c\u30d3\u30e5\u30fc\u300d\u3068\u300c\u30b3\u30d4\u30fc\u300d\u306b\u6ce8\u610f<\/h2>\n<p>\u00a0<\/p>\n<p>NumPy\u306e\u30b9\u30e9\u30a4\u30b9\u306f\u3001\u901a\u5e38\u3001\u5143\u306e\u914d\u5217\u306e<b>\u30d3\u30e5\u30fc\uff08view\uff09<\/b> \u3092\u8fd4\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30b9\u30e9\u30a4\u30b9\u3055\u308c\u305f\u90e8\u5206\u914d\u5217\u3092\u5909\u66f4\u3059\u308b\u3068\u3001\u5143\u306e\u914d\u5217\u3082\u5909\u66f4\u3055\u308c\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u89b3\u70b9\u304b\u3089\u306f\u52b9\u7387\u7684\u3067\u3059\u304c\u3001\u610f\u56f3\u3057\u306a\u3044\u30c7\u30fc\u30bf\u5909\u66f4\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u00a0<\/p>\n<h3>\u30d3\u30e5\u30fc\u306e\u6319\u52d5<\/h3>\n<p>\u00a0<\/p>\n<div class=\"code-block ng-tns-c2110935761-207 ng-animate-disabled ng-trigger ng-trigger-codeBlockRevealAnimation\">\n<div class=\"code-block-decoration header-formatted gds-title-s ng-tns-c2110935761-207 ng-star-inserted\"><span class=\"ng-tns-c2110935761-207\">Python<\/span>\n<div class=\"buttons ng-tns-c2110935761-207 ng-star-inserted\">\u00a0<\/div>\n<\/div>\n<div class=\"formatted-code-block-internal-container ng-tns-c2110935761-207\">\n<div class=\"animated-opacity ng-tns-c2110935761-207\">\n<pre class=\"ng-tns-c2110935761-207\"><code class=\"code-container formatted ng-tns-c2110935761-207\" role=\"text\" data-test-id=\"code-content\"><span class=\"hljs-keyword\">import<\/span> numpy <span class=\"hljs-keyword\">as<\/span> np\n\narr = np.array([<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">4<\/span>, <span class=\"hljs-number\">5<\/span>])\nview_arr = arr[<span class=\"hljs-number\">1<\/span>:<span class=\"hljs-number\">4<\/span>] <span class=\"hljs-comment\"># \u30d3\u30e5\u30fc\u3092\u4f5c\u6210<\/span>\n\nview_arr[<span class=\"hljs-number\">0<\/span>] = <span class=\"hljs-number\">99<\/span> <span class=\"hljs-comment\"># \u30d3\u30e5\u30fc\u306e\u8981\u7d20\u3092\u5909\u66f4<\/span>\nprint(<span class=\"hljs-string\">f\"\u5143\u306e\u914d\u5217: <span class=\"hljs-subst\">{arr}<\/span>\"<\/span>) <span class=\"hljs-comment\"># \u51fa\u529b: \u5143\u306e\u914d\u5217: [ 1 99  3  4  5]<\/span>\n<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<p>\u00a0<\/p>\n<h3>\u660e\u793a\u7684\u306b\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3059\u308b<\/h3>\n<p>\u00a0<\/p>\n<p>\u5143\u306e\u914d\u5217\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u305a\u306b\u30b9\u30e9\u30a4\u30b9\u3055\u308c\u305f\u90e8\u5206\u3092\u64cd\u4f5c\u3057\u305f\u3044\u5834\u5408\u306f\u3001<code>copy()<\/code> \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u660e\u793a\u7684\u306b\u30b3\u30d4\u30fc\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n<div class=\"code-block ng-tns-c2110935761-208 ng-animate-disabled ng-trigger ng-trigger-codeBlockRevealAnimation\">\n<div class=\"code-block-decoration header-formatted gds-title-s ng-tns-c2110935761-208 ng-star-inserted\"><span class=\"ng-tns-c2110935761-208\">Python<\/span>\n<div class=\"buttons ng-tns-c2110935761-208 ng-star-inserted\">\u00a0<\/div>\n<\/div>\n<div class=\"formatted-code-block-internal-container ng-tns-c2110935761-208\">\n<div class=\"animated-opacity ng-tns-c2110935761-208\">\n<pre class=\"ng-tns-c2110935761-208\"><code class=\"code-container formatted ng-tns-c2110935761-208\" role=\"text\" data-test-id=\"code-content\"><span class=\"hljs-keyword\">import<\/span> numpy <span class=\"hljs-keyword\">as<\/span> np\n\narr = np.array([<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">4<\/span>, <span class=\"hljs-number\">5<\/span>])\ncopied_arr = arr[<span class=\"hljs-number\">1<\/span>:<span class=\"hljs-number\">4<\/span>].copy() <span class=\"hljs-comment\"># \u30b3\u30d4\u30fc\u3092\u4f5c\u6210<\/span>\n\ncopied_arr[<span class=\"hljs-number\">0<\/span>] = <span class=\"hljs-number\">99<\/span> <span class=\"hljs-comment\"># \u30b3\u30d4\u30fc\u306e\u8981\u7d20\u3092\u5909\u66f4<\/span>\nprint(<span class=\"hljs-string\">f\"\u5143\u306e\u914d\u5217: <span class=\"hljs-subst\">{arr}<\/span>\"<\/span>)     <span class=\"hljs-comment\"># \u51fa\u529b: \u5143\u306e\u914d\u5217: [1 2 3 4 5] (\u5909\u66f4\u306a\u3057)<\/span>\nprint(<span class=\"hljs-string\">f\"\u30b3\u30d4\u30fc\u914d\u5217: <span class=\"hljs-subst\">{copied_arr}<\/span>\"<\/span>) <span class=\"hljs-comment\"># \u51fa\u529b: \u30b3\u30d4\u30fc\u914d\u5217: [99  3  4]<\/span>\n<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<hr \/>\n<p>\u00a0<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u00a0<\/p>\n<p>NumPy\u914d\u5217\u306e\u30b9\u30e9\u30a4\u30b9\u306f\u3001\u30c7\u30fc\u30bf\u64cd\u4f5c\u306e\u57fa\u672c\u3067\u3042\u308a\u306a\u304c\u3089\u975e\u5e38\u306b\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u5358\u4e00\u306e\u8981\u7d20\u304b\u3089\u8907\u96d1\u306a\u90e8\u5206\u914d\u5217\u307e\u3067\u67d4\u8edf\u306b\u9078\u629e\u3057\u3001\u52b9\u7387\u7684\u306b\u5024\u3092\u4ee3\u5165\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u30d3\u30e5\u30fc\u3068\u30b3\u30d4\u30fc\u306e\u6982\u5ff5\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u4e88\u671f\u305b\u306c\u30d0\u30b0\u3092\u9632\u304e\u3001\u3088\u308a\u5805\u7262\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u4e0a\u3067\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u7fd2\u5f97\u3057\u3066\u3001\u3042\u306a\u305f\u306e\u30c7\u30fc\u30bf\u5206\u6790\u30b9\u30ad\u30eb\u3092\u3055\u3089\u306b\u5411\u4e0a\u3055\u305b\u307e\u3057\u3087\u3046\uff01<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0 \u30c7\u30fc\u30bf\u30b5\u30a4\u30a8\u30f3\u30b9\u3084\u6a5f\u68b0\u5b66\u7fd2\u306b\u304a\u3044\u3066\u3001NumPy\u914d\u5217\uff08ndarray\uff09 \u306e\u64cd\u4f5c\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u7279\u306b\u3001\u914d\u5217\u306e\u7279\u5b9a\u306e\u90e8\u5206\u3092\u53d6\u308a\u51fa\u3057\u305f\u308a\u3001\u307e\u3068\u3081\u3066\u5024\u3092\u5909\u66f4\u3057\u305f\u308a\u3059\u308b\u969b\u306b\u306f\u3001\u30b9\u30e9\u30a4\u30b9\u304c\u4e0d\u53ef\u6b20\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":42501,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-45477","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-column"],"views":53,"jetpack_featured_media_url":"\/wp-content\/uploads\/2025\/07\/f3403acf5c65aedec0dba821c4c26404.png","jetpack_sharing_enabled":true,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/techgym.jp\/wp-json\/wp\/v2\/posts\/45477","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/techgym.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/techgym.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/techgym.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/techgym.jp\/wp-json\/wp\/v2\/comments?post=45477"}],"version-history":[{"count":0,"href":"https:\/\/techgym.jp\/wp-json\/wp\/v2\/posts\/45477\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/techgym.jp\/wp-json\/wp\/v2\/media\/42501"}],"wp:attachment":[{"href":"https:\/\/techgym.jp\/wp-json\/wp\/v2\/media?parent=45477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/techgym.jp\/wp-json\/wp\/v2\/categories?post=45477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/techgym.jp\/wp-json\/wp\/v2\/tags?post=45477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}