{"id":976,"date":"2023-07-28T03:02:01","date_gmt":"2023-07-28T03:02:01","guid":{"rendered":"https:\/\/statorials.org\/pl\/przekonwertuj-date-godzine-na-pandy-daty\/"},"modified":"2023-07-28T03:02:01","modified_gmt":"2023-07-28T03:02:01","slug":"przekonwertuj-date-godzine-na-pandy-daty","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/przekonwertuj-date-godzine-na-pandy-daty\/","title":{"rendered":"Jak przekonwertowa\u0107 datetime na dat\u0119 w pandach"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Cz\u0119sto mo\u017cesz chcie\u0107 przekonwertowa\u0107 dat\u0119\/godzin\u0119 na dat\u0119 w pandach. Na szcz\u0119\u015bcie mo\u017cna to \u0142atwo zrobi\u0107 za pomoc\u0105 funkcji <strong>.dt.date<\/strong> , kt\u00f3ra ma nast\u0119puj\u0105c\u0105 sk\u0142adni\u0119:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[' <span style=\"color: #008000;\">date_column<\/span> '] = pd. <span style=\"color: #3366ff;\">to_datetime<\/span> (df[' <span style=\"color: #008000;\">datetime_column<\/span> ']). <span style=\"color: #3366ff;\">dt<\/span> . <span style=\"color: #3366ff;\">date\n<\/span><\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad: Data i godzina do chwili obecnej w Pandach<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Za\u0142\u00f3\u017cmy na przyk\u0142ad, \u017ce mamy nast\u0119puj\u0105c\u0105 ramk\u0119 danych pand:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> pandas <span style=\"color: #008000;\">as<\/span> pd\n\n<span style=\"color: #008080;\">#create pandas DataFrame with two columns\n<\/span>df = pd.DataFrame({'sales': [4, 11],\n                   'time': ['2020-01-15 20:02:58', '2020-01-18 14:43:24']})\n\n<span style=\"color: #008080;\">#view DataFrame<\/span>\n<span style=\"color: #993300;\">print<\/span> (df)\n\nsales time\n0 4 2020-01-15 20:02:58\n1 11 2020-01-18 14:43:24\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Aby przekonwertowa\u0107 kolumn\u0119 \u201eczas\u201d na prost\u0105 dat\u0119, mo\u017cemy zastosowa\u0107 nast\u0119puj\u0105c\u0105 sk\u0142adni\u0119:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#convert datetime column to just date<\/span>\ndf[' <span style=\"color: #008000;\">time<\/span> '] = pd. <span style=\"color: #3366ff;\">to_datetime<\/span> (df[' <span style=\"color: #008000;\">time<\/span> ']). <span style=\"color: #3366ff;\">dt<\/span> . <span style=\"color: #3366ff;\">date<\/span>\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span><span style=\"color: #993300;\">print<\/span> (df)\n\n\tsales time\n0 4 2020-01-15\n1 11 2020-01-18\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Teraz kolumna \u201eczas\u201d wy\u015bwietla po prostu dat\u0119 bez godziny.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>U\u017cywanie Normalize() dla typ\u00f3w datetime64<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Nale\u017cy pami\u0119ta\u0107, \u017ce powy\u017cszy kod zwr\u00f3ci typ <strong>obiektu<\/strong> :<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#find dtype of each column in DataFrame<\/span>\ndf. <span style=\"color: #3366ff;\">dtypes<\/span>\n\ndirty int64\ntime object\ndtype:object<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Je\u015bli zamiast tego chcesz <strong>datetime64<\/strong> , mo\u017cesz <strong>znormalizowa\u0107()<\/strong> sk\u0142adnik czasu, kt\u00f3ry zachowa typ jako <strong>datetime64<\/strong> , ale wy\u015bwietli tylko dat\u0119:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#convert datetime column to just date<\/span>\ndf[' <span style=\"color: #008000;\">time<\/span> '] = pd. <span style=\"color: #3366ff;\">to_datetime<\/span> (df[' <span style=\"color: #008000;\">time<\/span> ']). <span style=\"color: #3366ff;\">dt<\/span> . <span style=\"color: #3366ff;\">normalize <span style=\"color: #000000;\">()<\/span><\/span>\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span><span style=\"color: #993300;\">print<\/span> (df)\n\n\tsales time\n0 4 2020-01-15\n1 11 2020-01-18\n\n<span style=\"color: #008080;\">#find dtype of each column in DataFrame\n<\/span>df. <span style=\"color: #3366ff;\">dtypes\n\n<span style=\"color: #000000;\">dirty int64\ntime datetime64[ns]\ndtype:object<\/span><\/span>\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Ponownie wy\u015bwietlana jest tylko data, ale kolumna \u201egodzina\u201d jest typu <strong>datetime64<\/strong> .<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Dodatkowe zasoby<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/pl\/przekonwertuj-kolumny-na-pandy-datetime\/\" target=\"_blank\" rel=\"noopener noreferrer\">Jak przekonwertowa\u0107 kolumny na DateTime w Pandach<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/przekonwertuj-ciag-na-p\u0142ywajace-pandy\/\" target=\"_blank\" rel=\"noopener noreferrer\">Jak przekonwertowa\u0107 ci\u0105gi na p\u0142ywaj\u0105ce w Pandach<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cz\u0119sto mo\u017cesz chcie\u0107 przekonwertowa\u0107 dat\u0119\/godzin\u0119 na dat\u0119 w pandach. Na szcz\u0119\u015bcie mo\u017cna to \u0142atwo zrobi\u0107 za pomoc\u0105 funkcji .dt.date , kt\u00f3ra ma nast\u0119puj\u0105c\u0105 sk\u0142adni\u0119: df[&#8217; date_column &#8217;] = pd. to_datetime (df[&#8217; datetime_column &#8217;]). dt . date Przyk\u0142ad: Data i godzina do chwili obecnej w Pandach Za\u0142\u00f3\u017cmy na przyk\u0142ad, \u017ce mamy nast\u0119puj\u0105c\u0105 ramk\u0119 danych pand: import [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-976","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Jak przekonwertowa\u0107 dat\u0119\/godzin\u0119 na dat\u0119 w Pandach - Statorials<\/title>\n<meta name=\"description\" content=\"Proste wyja\u015bnienie, jak przekonwertowa\u0107 dat\u0119 i godzin\u0119 na dat\u0119 w pandach, \u0142\u0105cznie z przyk\u0142adem.\" \/>\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\/pl\/przekonwertuj-date-godzine-na-pandy-daty\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak przekonwertowa\u0107 dat\u0119\/godzin\u0119 na dat\u0119 w Pandach - 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