{"id":4238,"date":"2023-07-12T15:01:15","date_gmt":"2023-07-12T15:01:15","guid":{"rendered":"https:\/\/statorials.org\/pl\/pandy-lacza-kolumny-daty-i-godziny\/"},"modified":"2023-07-12T15:01:15","modified_gmt":"2023-07-12T15:01:15","slug":"pandy-lacza-kolumny-daty-i-godziny","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/pandy-lacza-kolumny-daty-i-godziny\/","title":{"rendered":"Pandy: jak po\u0142\u0105czy\u0107 kolumny daty i godziny"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni, aby po\u0142\u0105czy\u0107 kolumny daty i godziny ramki DataFrame pandy w jedn\u0105 kolumn\u0119:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[' <span style=\"color: #ff0000;\">datetime<\/span> '] = pd. <span style=\"color: #3366ff;\">to_datetime<\/span> (df[' <span style=\"color: #ff0000;\">date<\/span> '] + ' ' + df[' <span style=\"color: #ff0000;\">time<\/span> '])\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Nale\u017cy zauwa\u017cy\u0107, \u017ce w tej sk\u0142adni przyj\u0119to za\u0142o\u017cenie, \u017ce kolumny <strong>daty<\/strong> i <strong>godziny<\/strong> s\u0105 bie\u017c\u0105cymi ci\u0105gami znak\u00f3w.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Je\u015bli obie kolumny nie s\u0105 jeszcze ci\u0105gami znak\u00f3w, mo\u017cesz u\u017cy\u0107 <strong>funkcji astype(str)<\/strong> , aby przekonwertowa\u0107 je na ci\u0105gi znak\u00f3w:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[' <span style=\"color: #ff0000;\">datetime<\/span> '] = pd. <span style=\"color: #3366ff;\">to_datetime<\/span> (df[' <span style=\"color: #ff0000;\">date<\/span> ']. <span style=\"color: #3366ff;\">astype<\/span> ( <span style=\"color: #008000;\">str<\/span> ) + ' ' + df[' <span style=\"color: #ff0000;\">time<\/span> ']. <span style=\"color: #3366ff;\">astype<\/span> ( <span style=\"color: #008000;\">str<\/span> ))<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Poni\u017cszy przyk\u0142ad pokazuje, jak zastosowa\u0107 t\u0119 sk\u0142adni\u0119 w praktyce.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Przyk\u0142ad: Po\u0142\u0105cz kolumny daty i godziny w Pandach<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Za\u0142\u00f3\u017cmy, \u017ce mamy nast\u0119puj\u0105c\u0105 ramk\u0119 danych pandy zawieraj\u0105c\u0105 kolumn\u0119 daty i kolumn\u0119 czasu:<\/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;\">#createDataFrame<span style=\"color: #000000;\">\ndf = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">date<\/span> ': ['10-1-2023', '10-4-2023', '10-6-2023', '10-6-2023',\n                            '10-14-2023', '10-15-2023', '10-29-2023'],\n                   ' <span style=\"color: #ff0000;\">time<\/span> ': ['4:15:00', '7:16:04', '9:25:00', '10:13:45',\n                            '15:30:00', '18:15:00', '23:15:00']})\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n         date time\n0 10-1-2023 4:15:00\n1 10-4-2023 7:16:04\n2 10-6-2023 9:25:00\n3 10-6-2023 10:13:45\n4 10-14-2023 15:30:00\n5 10-15-2023 18:15:00\n6 10-29-2023 23:15:00\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Za\u0142\u00f3\u017cmy, \u017ce chcemy utworzy\u0107 now\u0105 kolumn\u0119 o nazwie <strong>datetime<\/strong> , kt\u00f3ra \u0142\u0105czy warto\u015bci z kolumn <strong>daty<\/strong> i <strong>godziny<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">W tym celu mo\u017cemy u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create new datetime column<\/span>\ndf[' <span style=\"color: #ff0000;\">datetime<\/span> '] = pd. <span style=\"color: #3366ff;\">to_datetime<\/span> (df[' <span style=\"color: #ff0000;\">date<\/span> '] + ' ' + df[' <span style=\"color: #ff0000;\">time<\/span> '])\n\n<span style=\"color: #008080;\">#view updated DataFrame<\/span>\n<span style=\"color: #008000;\">print<\/span> (df)\n\n         datetime datetime\n0 10-1-2023 4:15:00 2023-10-01 04:15:00\n1 10-4-2023 7:16:04 2023-10-04 07:16:04\n2 10-6-2023 9:25:00 2023-10-06 09:25:00\n3 10-6-2023 10:13:45 2023-10-06 10:13:45\n4 10-14-2023 15:30:00 2023-10-14 15:30:00\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Zauwa\u017c, \u017ce nowa kolumna <strong>datetime<\/strong> pomy\u015blnie po\u0142\u0105czy\u0142a warto\u015bci z kolumn <strong>daty<\/strong> i <strong>godziny<\/strong> w jedn\u0105 kolumn\u0119.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Mo\u017cemy r\u00f3wnie\u017c u\u017cy\u0107 funkcji <strong>dtypes<\/strong> , aby sprawdzi\u0107 typy danych ka\u017cdej kolumny w ramce DataFrame:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#view data type of each column\n<\/span>df. <span style=\"color: #3366ff;\">dtypes\n\n<span style=\"color: #000000;\">date object\ntime object\ndatetime datetime64[ns]\ndtype:object\n<\/span><\/span><\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Z wyniku widzimy, \u017ce kolumny <strong>daty<\/strong> i <strong>godziny<\/strong> s\u0105 obiektami (tj. ci\u0105gami znak\u00f3w), a nowa kolumna <strong>daty<\/strong> i godziny jest dat\u0105 i godzin\u0105.<\/span><\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Uwaga<\/strong> : pe\u0142n\u0105 dokumentacj\u0119 funkcji pandas <strong>to_datetime()<\/strong> mo\u017cna znale\u017a\u0107 <a href=\"https:\/\/pandas.pydata.org\/docs\/reference\/api\/pandas.to_datetime.html\" target=\"_blank\" rel=\"noopener\">tutaj<\/a> .<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Dodatkowe zasoby<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Poni\u017csze samouczki wyja\u015bniaj\u0105, jak wykonywa\u0107 inne typowe operacje na pandach:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pl\/zakres-dat-pandy\/\" target=\"_blank\" rel=\"noopener\">Jak utworzy\u0107 zakres dat w Pandach<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/panda-sygnatura-czasowa-data-godzina\/\" target=\"_blank\" rel=\"noopener\">Jak przekonwertowa\u0107 znacznik czasu na dat\u0119\/godzin\u0119 w Pandach<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/roznica-dat-pand\/\" target=\"_blank\" rel=\"noopener\">Jak obliczy\u0107 r\u00f3\u017cnic\u0119 mi\u0119dzy dwiema datami w pandach<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni, aby po\u0142\u0105czy\u0107 kolumny daty i godziny ramki DataFrame pandy w jedn\u0105 kolumn\u0119: df[&#8217; datetime &#8217;] = pd. to_datetime (df[&#8217; date &#8217;] + &#8217; &#8217; + df[&#8217; time &#8217;]) Nale\u017cy zauwa\u017cy\u0107, \u017ce w tej sk\u0142adni przyj\u0119to za\u0142o\u017cenie, \u017ce kolumny daty i godziny s\u0105 bie\u017c\u0105cymi ci\u0105gami znak\u00f3w. Je\u015bli obie kolumny nie s\u0105 jeszcze [&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-4238","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>Pandy: Jak \u0142\u0105czy\u0107 kolumny daty i godziny - Statorials<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, na przyk\u0142adzie, jak po\u0142\u0105czy\u0107 kolumny daty i godziny w ramce DataFrame pandy.\" \/>\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\/pandy-lacza-kolumny-daty-i-godziny\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pandy: Jak \u0142\u0105czy\u0107 kolumny daty i godziny - Statorials\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, na przyk\u0142adzie, jak po\u0142\u0105czy\u0107 kolumny daty i godziny w ramce DataFrame pandy.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/pandy-lacza-kolumny-daty-i-godziny\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-12T15:01:15+00:00\" \/>\n<meta name=\"author\" content=\"Benjamin Anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napisane przez\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin Anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Szacowany czas czytania\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pl\/pandy-lacza-kolumny-daty-i-godziny\/\",\"url\":\"https:\/\/statorials.org\/pl\/pandy-lacza-kolumny-daty-i-godziny\/\",\"name\":\"Pandy: Jak \u0142\u0105czy\u0107 kolumny daty i godziny - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-12T15:01:15+00:00\",\"dateModified\":\"2023-07-12T15:01:15+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, na przyk\u0142adzie, jak po\u0142\u0105czy\u0107 kolumny daty i godziny w ramce DataFrame pandy.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/pandy-lacza-kolumny-daty-i-godziny\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/pandy-lacza-kolumny-daty-i-godziny\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/pandy-lacza-kolumny-daty-i-godziny\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Pandy: jak po\u0142\u0105czy\u0107 kolumny daty i godziny\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pl\/#website\",\"url\":\"https:\/\/statorials.org\/pl\/\",\"name\":\"Statorials\",\"description\":\"Tw\u00f3j przewodnik po kompetencjach statystycznych!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pl\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pl-PL\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\",\"name\":\"Benjamin Anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pl-PL\",\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pl\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pl\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin Anderson\"},\"description\":\"Cze\u015b\u0107, jestem Benjamin i jestem emerytowanym profesorem statystyki, kt\u00f3ry zosta\u0142 oddanym nauczycielem Statorials. 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