{"id":3560,"date":"2023-07-16T19:46:20","date_gmt":"2023-07-16T19:46:20","guid":{"rendered":"https:\/\/statorials.org\/ja\/numpy-float64-%e3%82%aa%e3%83%95%e3%82%99%e3%82%b7%e3%82%99%e3%82%a7%e3%82%af%e3%83%88%e3%81%af%e9%a0%85%e7%9b%ae%e3%81%ae%e5%89%b2%e3%82%8a%e5%bd%93%e3%81%a6%e3%82%92%e3%82%b5%e3%83%9b%e3%82%9a\/"},"modified":"2023-07-16T19:46:20","modified_gmt":"2023-07-16T19:46:20","slug":"numpy-float64-%e3%82%aa%e3%83%95%e3%82%99%e3%82%b7%e3%82%99%e3%82%a7%e3%82%af%e3%83%88%e3%81%af%e9%a0%85%e7%9b%ae%e3%81%ae%e5%89%b2%e3%82%8a%e5%bd%93%e3%81%a6%e3%82%92%e3%82%b5%e3%83%9b%e3%82%9a","status":"publish","type":"post","link":"https:\/\/statorials.org\/ja\/numpy-float64-%e3%82%aa%e3%83%95%e3%82%99%e3%82%b7%e3%82%99%e3%82%a7%e3%82%af%e3%83%88%e3%81%af%e9%a0%85%e7%9b%ae%e3%81%ae%e5%89%b2%e3%82%8a%e5%bd%93%e3%81%a6%e3%82%92%e3%82%b5%e3%83%9b%e3%82%9a\/","title":{"rendered":"\u4fee\u6b63\u65b9\u6cd5: \u300cnumpy.float64\u300d\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u8981\u7d20\u306e\u5272\u308a\u5f53\u3066\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u305b\u3093"},"content":{"rendered":"

<\/p>\n

\n

Python \u306e\u4f7f\u7528\u6642\u306b\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/span><\/p>\n

 TypeError: 'numpy.float64' object does not support item assignment\n<\/strong><\/span><\/pre>\n
\u3053\u306e\u30a8\u30e9\u30fc\u306f\u901a\u5e38\u3001\u89d2\u62ec\u5f27\u3092\u4f7f\u7528\u3057\u3066float64<\/strong>\u578b\u306e NumPy \u5909\u6570\u306b\u65b0\u3057\u3044\u5024\u3092\u5272\u308a\u5f53\u3066\u3088\u3046\u3068\u3057\u305f\u3068\u304d\u306b\u767a\u751f\u3057\u307e\u3059\u3002<\/span><\/p>\n
\u6b21\u306e\u4f8b\u306f\u3001\u3053\u306e\u30a8\u30e9\u30fc\u3092\u5b9f\u969b\u306b\u89e3\u6c7a\u3059\u308b\u65b9\u6cd5\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n
\u30a8\u30e9\u30fc\u3092\u518d\u73fe\u3059\u308b\u65b9\u6cd5<\/strong><\/span><\/h2>\n
\u502415.22<\/strong>\u306e NumPy \u5909\u6570\u3092\u4f5c\u6210\u3057\u3001\u62ec\u5f27\u3092\u4f7f\u7528\u3057\u3066\u65b0\u3057\u3044\u502413.7<\/strong>\u3092\u4e0e\u3048\u3088\u3046\u3068\u3059\u308b\u3068\u3057\u307e\u3059\u3002<\/span><\/p>\n
 import<\/span> numpy as<\/span> np\n\n#define some float value\n<\/span>one_float = np. float64<\/span> (15.22)\n\n#attempt to modify float value to be 13.7\n<\/span>one_float[0] = 13.7\n\nTypeError: 'numpy.float64' object does not support item assignment\n<\/span><\/span><\/strong><\/pre>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8 ‘numpy.float64’ \u304c\u8981\u7d20\u306e\u5272\u308a\u5f53\u3066\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044<\/strong>\u3068\u3044\u3046\u30a8\u30e9\u30fc\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n
 one_float<\/strong>\u306f\u30b9\u30ab\u30e9\u30fc\u3067\u3059\u304c\u3001\u89d2\u62ec\u5f27\u3092\u4f7f\u7528\u3057\u3066\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4f4d\u7f6e 0 \u306e\u5024\u3092\u5909\u66f4\u3067\u304d\u308b\u914d\u5217\u3068\u3057\u3066\u51e6\u7406\u3057\u3088\u3046\u3068\u3057\u305f\u305f\u3081\u3001\u3053\u306e\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3057\u305f\u3002<\/span><\/p>\n
 one_float \u306f<\/strong>\u914d\u5217\u3067\u306f\u306a\u3044\u305f\u3081\u3001\u305d\u306e\u5024\u3092\u5909\u66f4\u3059\u308b\u3068\u304d\u306b\u89d2\u304b\u3063\u3053\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/span><\/p>\n
\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\u65b9\u6cd5<\/strong><\/span><\/h2>\n
\u3053\u306e\u30a8\u30e9\u30fc\u3092\u89e3\u6c7a\u3059\u308b\u65b9\u6cd5\u306f\u3001float \u306b\u65b0\u3057\u3044\u5024\u3092\u5272\u308a\u5f53\u3066\u308b\u3068\u304d\u306b\u89d2\u62ec\u5f27\u3092\u4f7f\u7528\u3057\u306a\u3044\u3053\u3068\u3067\u3059\u3002<\/span><\/p>\n
 #modify float value to be 13.7\n<\/span>one_float = 13.7\n\n#view float\n<\/span>print<\/span> (one_float)\n\n13.7<\/span><\/span><\/strong><\/pre>\n
\u62ec\u5f27\u3092\u4f7f\u7528\u3057\u306a\u304b\u3063\u305f\u305f\u3081\u3001\u5024\u309215.22<\/strong>\u304b\u308913.7<\/strong>\u306b\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/span><\/p>\n
\u914d\u5217\u3092\u64cd\u4f5c\u3057\u3066\u3044\u308b\u9650\u308a\u3001\u89d2\u62ec\u5f27\u3092\u4f7f\u7528\u3057\u3066\u7279\u5b9a\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4f4d\u7f6e\u306e\u5024\u3092\u5909\u66f4\u3067\u304d\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/span><\/p>\n
\u305f\u3068\u3048\u3070\u3001\u6b21\u306e\u30b3\u30fc\u30c9\u306f\u3001\u62ec\u5f27\u8868\u8a18\u3092\u4f7f\u7528\u3057\u3066 NumPy \u914d\u5217\u306e\u6700\u521d\u306e\u8981\u7d20\u309215.22<\/strong>\u304b\u308913.7<\/strong>\u306b\u5909\u66f4\u3059\u308b\u65b9\u6cd5\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n
 import<\/span> numpy as<\/span> np\n\n#define a NumPy array of floats\n<\/span>many_floats = np. float64<\/span> ([15.22, 34.2, 15.4, 13.2, 33.4])\n\n#modify float value in first index position of array to be 13.7\n<\/span>many_floats[0] = 13.7\n\n#view updated array\n<\/span>print<\/span> (many_floats)\n\n[13.7 34.2 15.4 13.2 33.4]\n<\/span><\/span><\/strong><\/pre>\n
\u4eca\u56de\u3082 NumPy \u914d\u5217\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u305f\u3081\u30a8\u30e9\u30fc\u306f\u767a\u751f\u3057\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u62ec\u5f27\u3092\u4f7f\u7528\u3059\u308b\u306e\u306f\u7406\u306b\u304b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n
\u8ffd\u52a0\u30ea\u30bd\u30fc\u30b9<\/strong><\/span><\/h2>\n
\u6b21\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001Python \u306e\u4ed6\u306e\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/span><\/p>\n
 Python \u3067\u4fee\u6b63\u3059\u308b\u65b9\u6cd5: \u30aa\u30d6\u30b8\u30a7\u30af\u30c8 ‘numpy.ndarray’ \u306f\u547c\u3073\u51fa\u3057\u53ef\u80fd\u3067\u306f\u3042\u308a\u307e\u305b\u3093<\/a>
\u4fee\u6b63\u65b9\u6cd5: TypeError: \u30aa\u30d6\u30b8\u30a7\u30af\u30c8 ‘numpy.float64’ \u306f\u547c\u3073\u51fa\u3057\u53ef\u80fd\u3067\u306f\u3042\u308a\u307e\u305b\u3093<\/a>
\u4fee\u6b63\u65b9\u6cd5: \u578b\u30a8\u30e9\u30fc: \u6587\u5b57\u5217\u307e\u305f\u306f\u30d0\u30a4\u30c8 \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u5fc5\u8981\u3067\u3059<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Python \u306e\u4f7f\u7528\u6642\u306b\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002 TypeError: ‘numpy.float64’ object does not support item assignment \u3053\u306e\u30a8\u30e9 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-3560","post","type-post","status-publish","format-standard","hentry","category-16"],"yoast_head":"\n\u4fee\u6b63\u65b9\u6cd5: \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u300cnumpy.float64\u300d\u306f\u8981\u7d20\u306e\u5272\u308a\u5f53\u3066\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u305b\u3093 - Statorials<\/title>\n<meta name=\"description\" content=\"\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001Python \u3067\u6b21\u306e\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059: \u30aa\u30d6\u30b8\u30a7\u30af\u30c8 'numpy.float64' \u306f\u8981\u7d20\u306e\u5272\u308a\u5f53\u3066\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u305b\u3093\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/ja\/numpy-float64-\u30aa\u30d5\u3099\u30b7\u3099\u30a7\u30af\u30c8\u306f\u9805\u76ee\u306e\u5272\u308a\u5f53\u3066\u3092\u30b5\u30db\u309a\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4fee\u6b63\u65b9\u6cd5: \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u300cnumpy.float64\u300d\u306f\u8981\u7d20\u306e\u5272\u308a\u5f53\u3066\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u305b\u3093 - Statorials\" \/>\n<meta property=\"og:description\" content=\"\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001Python \u3067\u6b21\u306e\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059: \u30aa\u30d6\u30b8\u30a7\u30af\u30c8 'numpy.float64' \u306f\u8981\u7d20\u306e\u5272\u308a\u5f53\u3066\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u305b\u3093\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/ja\/numpy-float64-\u30aa\u30d5\u3099\u30b7\u3099\u30a7\u30af\u30c8\u306f\u9805\u76ee\u306e\u5272\u308a\u5f53\u3066\u3092\u30b5\u30db\u309a\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-16T19:46:20+00:00\" \/>\n<meta name=\"author\" content=\"\u30d9\u30f3\u30b8\u30e3\u30df\u30f3\u30fb\u30a2\u30f3\u30c0\u30fc\u30bd\u30f3\u535a\u58eb\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u30d9\u30f3\u30b8\u30e3\u30df\u30f3\u30fb\u30a2\u30f3\u30c0\u30fc\u30bd\u30f3\u535a\u58eb\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"1\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/ja\/numpy-float64-%e3%82%aa%e3%83%95%e3%82%99%e3%82%b7%e3%82%99%e3%82%a7%e3%82%af%e3%83%88%e3%81%af%e9%a0%85%e7%9b%ae%e3%81%ae%e5%89%b2%e3%82%8a%e5%bd%93%e3%81%a6%e3%82%92%e3%82%b5%e3%83%9b%e3%82%9a\/\",\"url\":\"https:\/\/statorials.org\/ja\/numpy-float64-%e3%82%aa%e3%83%95%e3%82%99%e3%82%b7%e3%82%99%e3%82%a7%e3%82%af%e3%83%88%e3%81%af%e9%a0%85%e7%9b%ae%e3%81%ae%e5%89%b2%e3%82%8a%e5%bd%93%e3%81%a6%e3%82%92%e3%82%b5%e3%83%9b%e3%82%9a\/\",\"name\":\"\u4fee\u6b63\u65b9\u6cd5: \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u300cnumpy.float64\u300d\u306f\u8981\u7d20\u306e\u5272\u308a\u5f53\u3066\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u305b\u3093 - 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