{"id":84411,"date":"2024-03-21T04:16:20","date_gmt":"2024-03-20T19:16:20","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/numpy%e3%81%a7%e9%85%8d%e5%88%97%e3%81%ae%e5%bd%a2%e7%8a%b6%e3%82%92%e5%a4%89%e6%9b%b4%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/"},"modified":"2024-03-27T15:36:15","modified_gmt":"2024-03-27T06:36:15","slug":"numpy%e3%81%a7%e9%85%8d%e5%88%97%e3%81%ae%e5%bd%a2%e7%8a%b6%e3%82%92%e5%a4%89%e6%9b%b4%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/numpy%e3%81%a7%e9%85%8d%e5%88%97%e3%81%ae%e5%bd%a2%e7%8a%b6%e3%82%92%e5%a4%89%e6%9b%b4%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/","title":{"rendered":"NumPy\u3067\u914d\u5217\u306e\u5f62\u72b6\u3092\u5909\u66f4\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>NumPy\u306ereshape()\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u914d\u5217\u306e\u5f62\u72b6\u3092\u5909\u66f4\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306breshape()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u305f\u5f62\u72b6\u5909\u66f4\u306e\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> numpy <span class=\"hljs-keyword\">as<\/span> np\r\n\r\n<span class=\"hljs-comment\"># \u521b\u5efa\u4e00\u4e2a\u4e00\u7ef4\u6570\u7ec4<\/span>\r\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>, <span class=\"hljs-number\">6<\/span>])\r\n\r\n<span class=\"hljs-comment\"># \u5c06\u4e00\u7ef4\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e8c\u7ef4\u6570\u7ec4<\/span>\r\narr_2d = arr.reshape(<span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>)\r\n<span class=\"hljs-built_in\">print<\/span>(arr_2d)\r\n<span class=\"hljs-comment\"># \u8f93\u51fa:<\/span>\r\n<span class=\"hljs-comment\"># [[1 2 3]<\/span>\r\n<span class=\"hljs-comment\">#  [4 5 6]]<\/span>\r\n\r\n<span class=\"hljs-comment\"># \u521b\u5efa\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4<\/span>\r\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>, <span class=\"hljs-number\">5<\/span>, <span class=\"hljs-number\">6<\/span>]])\r\n\r\n<span class=\"hljs-comment\"># \u5c06\u4e8c\u7ef4\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e00\u7ef4\u6570\u7ec4<\/span>\r\narr_1d = arr_2d.reshape(<span class=\"hljs-number\">6<\/span>)\r\n<span class=\"hljs-built_in\">print<\/span>(arr_1d)\r\n<span class=\"hljs-comment\"># \u8f93\u51fa:<\/span>\r\n<span class=\"hljs-comment\"># [1 2 3 4 5 6]<\/span>\r\n\r\n<span class=\"hljs-comment\"># \u53ef\u4ee5\u4f7f\u7528-1\u6765\u81ea\u52a8\u63a8\u65ad\u6570\u7ec4\u7684\u5f62\u72b6<\/span>\r\narr_1d = arr_2d.reshape(-<span class=\"hljs-number\">1<\/span>)\r\n<span class=\"hljs-built_in\">print<\/span>(arr_1d)\r\n<span class=\"hljs-comment\"># \u8f93\u51fa:<\/span>\r\n<span class=\"hljs-comment\"># [1 2 3 4 5 6]<\/span>\r\n\r\n<span class=\"hljs-comment\"># \u521b\u5efa\u4e00\u4e2a\u4e09\u7ef4\u6570\u7ec4<\/span>\r\narr_3d = 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>, <span class=\"hljs-number\">6<\/span>], [<span class=\"hljs-number\">7<\/span>, <span class=\"hljs-number\">8<\/span>]]])\r\n\r\n<span class=\"hljs-comment\"># \u5c06\u4e09\u7ef4\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e8c\u7ef4\u6570\u7ec4<\/span>\r\narr_2d = arr_3d.reshape(<span class=\"hljs-number\">4<\/span>, <span class=\"hljs-number\">2<\/span>)\r\n<span class=\"hljs-built_in\">print<\/span>(arr_2d)\r\n<span class=\"hljs-comment\"># \u8f93\u51fa:<\/span>\r\n<span class=\"hljs-comment\"># [[1 2]<\/span>\r\n<span class=\"hljs-comment\">#  [3 4]<\/span>\r\n<span class=\"hljs-comment\">#  [5 6]<\/span>\r\n<span class=\"hljs-comment\">#  [7 8]]<\/span>\r\n<\/code><\/pre>\n<p>reshape()\u95a2\u6570\u3092\u7528\u3044\u3066\u914d\u5217\u306e\u5f62\u72b6\u3092\u5909\u66f4\u3059\u308b\u969b\u3001\u65b0\u3057\u3044\u5f62\u72b6\u306e\u7dcf\u8981\u7d20\u6570\u304c\u5143\u306e\u914d\u5217\u306e\u7dcf\u8981\u7d20\u6570\u3068\u540c\u3058\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u3046\u3067\u306a\u3051\u308c\u3070\u3001ValueError\u4f8b\u5916\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NumPy\u306ereshape()\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u914d\u5217\u306e\u5f62\u72b6\u3092\u5909\u66f4\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306breshape()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u305f\u5f62\u72b6\u5909\u66f4\u306e\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002 import numpy as np # \u521b\u5efa\u4e00\u4e2a\u4e00\u7ef4\u6570\u7ec4 arr = np.ar [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-84411","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NumPy\u3067\u914d\u5217\u306e\u5f62\u72b6\u3092\u5909\u66f4\u3059\u308b\u65b9\u6cd5 - Blog - Silicon Cloud<\/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:\/\/www.silicloud.com\/ja\/blog\/numpy\u3067\u914d\u5217\u306e\u5f62\u72b6\u3092\u5909\u66f4\u3059\u308b\u65b9\u6cd5\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NumPy\u3067\u914d\u5217\u306e\u5f62\u72b6\u3092\u5909\u66f4\u3059\u308b\u65b9\u6cd5\" \/>\n<meta property=\"og:description\" content=\"NumPy\u306ereshape()\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u914d\u5217\u306e\u5f62\u72b6\u3092\u5909\u66f4\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306breshape()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u305f\u5f62\u72b6\u5909\u66f4\u306e\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002 import numpy as np # 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