{"id":12886,"date":"2025-06-24T18:47:14","date_gmt":"2025-06-24T09:47:14","guid":{"rendered":"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/?p=12886"},"modified":"2025-06-24T18:47:14","modified_gmt":"2025-06-24T09:47:14","slug":"py-df-filter","status":"publish","type":"post","link":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/2025\/06\/24\/py-df-filter\/","title":{"rendered":"\u3010Python\u3011Dataframe\u3092NumPy\u3092\u4f7f\u3063\u3066\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>\u30c7\u30fc\u30bf\u5206\u6790\u306b\u304a\u3044\u3066\u3001\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u306e\u4e2d\u304b\u3089\u5fc5\u8981\u306a\u60c5\u5831\u3060\u3051\u3092\u52b9\u7387\u7684\u306b\u53d6\u308a\u51fa\u3059\u30b9\u30ad\u30eb\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u7279\u306bPython\u306e\u30c7\u30fc\u30bf\u5206\u6790\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3042\u308bPandas\u3068\u6570\u5024\u8a08\u7b97\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3042\u308bNumPy\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u8907\u96d1\u306a\u6761\u4ef6\u3067\u306e\u30c7\u30fc\u30bf\u62bd\u51fa\u3082\u7c21\u5358\u306b\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u5177\u4f53\u7684\u306aPython\u30b3\u30fc\u30c9\u3092\u4f8b\u306b\u3001Pandas\u3068NumPy\u3092\u4f7f\u3063\u3066DataFrame\u304b\u3089\u7279\u5b9a\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u884c\u3092\u62bd\u51fa\u3059\u308b\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"brush: python; title: ; notranslate\" title=\"\">\r\nimport pandas as pd\r\nimport numpy as np\r\n\r\n# \u30b5\u30f3\u30d7\u30ebDataFrame\u306e\u4f5c\u6210\r\ndata = {'A': &#x5B;15, -8, 12, -20, 5, 10], # 'A'\u5217\u306e\u30c7\u30fc\u30bf\r\n        'B': &#x5B;'x', 'y', 'z', 'a', 'b', 'c']} # 'B'\u5217\u306e\u30c7\u30fc\u30bf\r\ndf = pd.DataFrame(data) # \u8f9e\u66f8\u30c7\u30fc\u30bf\u304b\u3089DataFrame\u3092\u4f5c\u6210\r\n\r\n# 'A'\u5217\u306e\u7d76\u5bfe\u5024\u304c10\u4ee5\u4e0a\u306e\u884c\u3092\u62bd\u51fa\r\n# np.abs(df&#x5B;'A']) \u3067'A'\u5217\u306e\u5404\u8981\u7d20\u306e\u7d76\u5bfe\u5024\u3092\u8a08\u7b97\r\n# \u305d\u306e\u7d50\u679c\u304c10\u4ee5\u4e0a\u3067\u3042\u308b\u304b\u3092\u5224\u5b9a\u3057\u3001True\/False\u306eSeries\u3092\u751f\u6210\r\n# df&#x5B;...] \u3067True\u306e\u884c\u306e\u307f\u3092\u62bd\u51fa\r\ndf_filtered = df&#x5B;np.abs(df&#x5B;'A']) &gt;= 10]\r\n\r\n# \u62bd\u51fa\u3055\u308c\u305fDataFrame\u3092\u8868\u793a\r\nprint(df_filtered) \r\n \r\n<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30c7\u30fc\u30bf\u5206\u6790\u306b\u304a\u3044\u3066\u3001\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u306e\u4e2d\u304b\u3089\u5fc5\u8981\u306a\u60c5\u5831\u3060\u3051\u3092\u52b9\u7387\u7684\u306b\u53d6\u308a\u51fa\u3059\u30b9\u30ad\u30eb\u306f &#8230; <\/p>\n","protected":false},"author":1,"featured_media":12888,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37],"tags":[],"class_list":["post-12886","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/posts\/12886","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/comments?post=12886"}],"version-history":[{"count":1,"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/posts\/12886\/revisions"}],"predecessor-version":[{"id":12887,"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/posts\/12886\/revisions\/12887"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/media\/12888"}],"wp:attachment":[{"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/media?parent=12886"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/categories?post=12886"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/tags?post=12886"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}