{"id":118121,"date":"2024-03-23T13:05:35","date_gmt":"2024-03-23T04:05:35","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/python%e3%81%a7-numpy-%e3%81%ae-zeros-%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95\/"},"modified":"2024-04-04T09:39:23","modified_gmt":"2024-04-04T00:39:23","slug":"python%e3%81%a7-numpy-%e3%81%ae-zeros-%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/python%e3%81%a7-numpy-%e3%81%ae-zeros-%e9%96%a2%e6%95%b0%e3%81%ae%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95\/","title":{"rendered":"Python\u3067 NumPy \u306e zeros \u95a2\u6570\u306e\u4f7f\u7528\u65b9\u6cd5"},"content":{"rendered":"<p>Python\u3067\u306f\u3001NumPy\u306ezeros\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u3001\u6307\u5b9a\u3055\u308c\u305f\u5f62\u72b6\u306e\u30bc\u30ed\u3067\u6e80\u305f\u3055\u308c\u305f\u914d\u5217\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u95a2\u6570\u306e\u69cb\u6587\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<p>numpy.zeros((shape, ), dtype=float, order=&#8217;C&#8217;)<\/p>\n<p>\u4e2d\u3067\u3082<\/p>\n<ol>\n<li>shape: \u623b\u308a\u914d\u5217\u306e\u5f62\u3092\u8868\u3057\u3001\u6574\u6570\u307e\u305f\u306f\u6574\u6570\u306e\u30bf\u30d7\u30eb\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001shape\u304c5\u306e\u5834\u5408\u3001\u9577\u30555\u306e1\u6b21\u5143\u914d\u5217\u3092\u4f5c\u6210\u3057\u3001shape\u304c(2, 3)\u306e\u5834\u5408\u30012\u884c3\u5217\u306e2\u6b21\u5143\u914d\u5217\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n<li>dtype: \u30aa\u30d7\u30b7\u30e7\u30f3\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3067\u3001\u8fd4\u3055\u308c\u308b\u914d\u5217\u306e\u30c7\u30fc\u30bf\u578b\u3092\u8868\u3057\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306ffloat\u578b\u3067\u3059\u3002<\/li>\n<li>order: \u30aa\u30d7\u30b7\u30e7\u30f3\u7684\u53c2\u6570\u3067\u3001\u914d\u5217\u3092\u30e1\u30e2\u30ea\u306b\u683c\u7d0d\u3059\u308b\u9806\u5e8f\u3092\u8868\u3057\u307e\u3059\u3002&#8217;C&#8217;\uff08\u884c\u65b9\u5411\u306b\u9023\u7d9a\u3057\u3066\u683c\u7d0d\uff09\u307e\u305f\u306f&#8217;F&#8217;\uff08\u5217\u65b9\u5411\u306b\u9023\u7d9a\u3057\u3066\u683c\u7d0d\uff09\u306e\u3044\u305a\u308c\u304b\u304c\u6307\u5b9a\u3067\u304d\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306f&#8217;C&#8217;\u3067\u3059\u3002<\/li>\n<\/ol>\n<p>\u30bc\u30ed\u95a2\u6570\u3092\u4f7f\u3046\u4f8b\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> numpy <span class=\"hljs-keyword\">as<\/span> np\r\n<span class=\"hljs-comment\"># \u521b\u5efa\u4e00\u4e2a\u957f\u5ea6\u4e3a5\u7684\u4e00\u7ef4\u5168\u96f6\u6570\u7ec4<\/span>\r\narr1 = np.zeros(<span class=\"hljs-number\">5<\/span>)\r\n<span class=\"hljs-built_in\">print<\/span>(arr1)\r\n<span class=\"hljs-comment\"># \u8f93\u51fa\uff1a[0. 0. 0. 0. 0.]<\/span>\r\n<span class=\"hljs-comment\"># \u521b\u5efa\u4e00\u4e2a2\u884c3\u5217\u7684\u4e8c\u7ef4\u5168\u96f6\u6570\u7ec4<\/span>\r\narr2 = np.zeros((<span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>))\r\n<span class=\"hljs-built_in\">print<\/span>(arr2)\r\n<span class=\"hljs-comment\"># \u8f93\u51fa\uff1a<\/span>\r\n<span class=\"hljs-comment\"># [[0. 0. 0.]<\/span>\r\n<span class=\"hljs-comment\">#  [0. 0. 0.]]<\/span>\r\n<span class=\"hljs-comment\"># \u521b\u5efa\u4e00\u4e2a3\u884c2\u5217\u7684\u4e8c\u7ef4\u5168\u96f6\u6574\u6570\u6570\u7ec4<\/span>\r\narr3 = np.zeros((<span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">2<\/span>), dtype=<span class=\"hljs-built_in\">int<\/span>)\r\n<span class=\"hljs-built_in\">print<\/span>(arr3)\r\n<span class=\"hljs-comment\"># \u8f93\u51fa\uff1a<\/span>\r\n<span class=\"hljs-comment\"># [[0 0]<\/span>\r\n<span class=\"hljs-comment\">#  [0 0]<\/span>\r\n<span class=\"hljs-comment\">#  [0 0]]<\/span>\r\n<\/code><\/pre>\n<p>\u304a\u5f79\u306b\u7acb\u3066\u308c\u3070\u5e78\u3044\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Python\u3067\u306f\u3001NumPy\u306ezeros\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u3001\u6307\u5b9a\u3055\u308c\u305f\u5f62\u72b6\u306e\u30bc\u30ed\u3067\u6e80\u305f\u3055\u308c\u305f\u914d\u5217\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u95a2\u6570\u306e\u69cb\u6587\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002 numpy.zeros((shape, ), dtype=float, ord [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-118121","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) - 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