{"id":4310,"date":"2023-07-12T02:48:52","date_gmt":"2023-07-12T02:48:52","guid":{"rendered":"https:\/\/statorials.org\/tr\/degiskenli-pandalar-sorgusu\/"},"modified":"2023-07-12T02:48:52","modified_gmt":"2023-07-12T02:48:52","slug":"degiskenli-pandalar-sorgusu","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/degiskenli-pandalar-sorgusu\/","title":{"rendered":"Pandalar: query() i\u015flevinde de\u011fi\u015fken nas\u0131l kullan\u0131l\u0131r?"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Pandalarda <strong>query()<\/strong> i\u015flevini kullanmak ve bir de\u011fi\u015fken ad\u0131na referans vermek i\u00e7in a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanabilirsiniz:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df. <span style=\"color: #3366ff;\">query<\/span> (' <span style=\"color: #ff0000;\">team == @team_name<\/span> ')<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Bu \u00f6zel sorgu, <strong>tak\u0131m<\/strong> s\u00fctununun <strong>tak\u0131m_ad\u0131<\/strong> ad\u0131 verilen de\u011fi\u015fkende depolanan de\u011fere e\u015fit oldu\u011fu pandas DataFrame&#8217;deki sat\u0131rlar\u0131 arar.<\/span><\/span><\/p>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki \u00f6rnek, bu s\u00f6zdiziminin pratikte nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>\u00d6rnek: Pandalar sorgusunda bir de\u011fi\u015fken nas\u0131l kullan\u0131l\u0131r?<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">\u00c7e\u015fitli basketbol oyuncular\u0131 hakk\u0131nda bilgi i\u00e7eren a\u015fa\u011f\u0131daki pandalar DataFrame&#8217;e sahip oldu\u011fumuzu varsayal\u0131m:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #107d3f;\">import<\/span> pandas <span style=\"color: #107d3f;\">as<\/span> pd\n\n<span style=\"color: #008080;\">#createDataFrame<\/span>\ndf = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">team<\/span> ': ['A', 'A', 'A', 'B', 'B', 'B', 'B', 'C', 'C', 'C', 'C '],\n                   ' <span style=\"color: #ff0000;\">position<\/span> ':['G', 'G', 'F', 'G', 'F', 'F', 'F', 'G', 'G', 'F', 'F'],\n                   ' <span style=\"color: #ff0000;\">points<\/span> ': [22, 25, 24, 39, 34, 20, 18, 17, 20, 19, 22]})\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n   team position points\n0 AG 22\n1 AG 25\n2 AF 24\n3 BG 39\n4 BF 34\n5 BF 20\n6 BF 18\n7 GC 17\n8 GC 20\n9 CF 19\n10 CF 22\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\u015eimdi <strong>tak\u0131m<\/strong> s\u00fctunundaki de\u011ferin C&#8217;ye e\u015fit oldu\u011fu sat\u0131rlar\u0131 bulmak istedi\u011fimizi varsayal\u0131m.<\/span><\/p>\n<p> <span style=\"color: #000000;\">&#8220;C&#8221;ye e\u015fit olan <strong>tak\u0131m_ad\u0131<\/strong> adl\u0131 bir de\u011fi\u015fken olu\u015fturmak i\u00e7in a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanabiliriz, ard\u0131ndan bu de\u011fi\u015fkene <strong>query()<\/strong> i\u015flevinde ba\u015fvuruda bulunabiliriz:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#specify team name to search for\n<\/span>team_name = ' <span style=\"color: #ff0000;\">C<\/span> '\n\n<span style=\"color: #008080;\">#query for rows where team is equal to team_name\n<\/span>df. <span style=\"color: #3366ff;\">query<\/span> (' <span style=\"color: #ff0000;\">team == @team_name<\/span> ')\n\n        team position points\n7 C G 17\n8 C G 20\n9 C F 19\n10 C F 22<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\"><strong>query()<\/strong> fonksiyonunun, <strong>tak\u0131m<\/strong> s\u00fctunundaki de\u011ferin C&#8217;ye e\u015fit oldu\u011fu t\u00fcm sat\u0131rlar\u0131 d\u00f6nd\u00fcrd\u00fc\u011f\u00fcn\u00fc unutmay\u0131n.<\/span><\/span><\/p>\n<p> <span style=\"color: #000000;\">Ayr\u0131ca istersek <strong>query()<\/strong> fonksiyonunda birden fazla de\u011fi\u015fkene referans verebilece\u011fimizi de unutmay\u0131n.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\u00d6rne\u011fin, a\u015fa\u011f\u0131daki kod, <strong>tak\u0131m<\/strong> s\u00fctunundaki de\u011ferin <strong>tak\u0131m_A<\/strong> ad\u0131 verilen bir de\u011fi\u015fkenin <em>veya<\/em> <strong>tak\u0131m_C<\/strong> ad\u0131 verilen bir de\u011fi\u015fkenin de\u011ferine e\u015fit oldu\u011fu t\u00fcm sat\u0131rlar\u0131 d\u00f6nd\u00fcrmek i\u00e7in <strong>query()<\/strong> i\u015flevinin nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create two variables\n<span style=\"color: #000000;\">team_A = ' <span style=\"color: #ff0000;\">A<\/span> ' \n<\/span><\/span>team_C = ' <span style=\"color: #ff0000;\">C<\/span> '\n\n<span style=\"color: #008080;\">#query for rows where team is equal to either of the two variables\n<\/span>df. <span style=\"color: #3366ff;\">query<\/span> (' <span style=\"color: #ff0000;\">team == @team_A | team == @team_C<\/span> ')\n\n        team position points\n0 A G 22\n1 A G 25\n2 A F 24\n7 C G 17\n8 C G 20\n9 C F 19\n10 C F 22\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Sorgu, DataFrame&#8217;deki t\u00fcm sat\u0131rlar\u0131 d\u00f6nd\u00fcr\u00fcr; burada <strong>tak\u0131m,<\/strong> belirtti\u011fimiz iki de\u011fi\u015fkenden birinde saklanan de\u011ferlere e\u015fittir.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Not<\/strong> : Pandas <strong>query()<\/strong> i\u015flevinin tam belgelerini <a href=\"https:\/\/pandas.pydata.org\/docs\/reference\/api\/pandas.DataFrame.query.html\" target=\"_blank\" rel=\"noopener\">burada<\/a> bulabilirsiniz.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Ek kaynaklar<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki e\u011fitimlerde pandalarda di\u011fer ortak g\u00f6revlerin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi a\u00e7\u0131klanmaktad\u0131r:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/tr\/pandalar-satirlari-dize-uzunluguna-gore-filtreler\/\" target=\"_blank\" rel=\"noopener\">Pandalar: Dize uzunlu\u011funa g\u00f6re sat\u0131rlar nas\u0131l filtrelenir<\/a><br \/> <a href=\"https:\/\/statorials.org\/tr\/pandalar-kosullu-satirlari-birakir\/\" target=\"_blank\" rel=\"noopener\">Pandalar: Ko\u015fula g\u00f6re sat\u0131rlar nas\u0131l silinir?<\/a><br \/> <a href=\"https:\/\/statorials.org\/tr\/pandalar-yok\/\" target=\"_blank\" rel=\"noopener\">Pandalar: \u201cG\u0130R\u0130\u015e YOK\u201d filtresi nas\u0131l kullan\u0131l\u0131r?<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pandalarda query() i\u015flevini kullanmak ve bir de\u011fi\u015fken ad\u0131na referans vermek i\u00e7in a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanabilirsiniz: df. query (&#8216; team == @team_name &#8216;) Bu \u00f6zel sorgu, tak\u0131m s\u00fctununun tak\u0131m_ad\u0131 ad\u0131 verilen de\u011fi\u015fkende depolanan de\u011fere e\u015fit oldu\u011fu pandas DataFrame&#8217;deki sat\u0131rlar\u0131 arar. A\u015fa\u011f\u0131daki \u00f6rnek, bu s\u00f6zdiziminin pratikte nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir. \u00d6rnek: Pandalar sorgusunda bir de\u011fi\u015fken nas\u0131l kullan\u0131l\u0131r? \u00c7e\u015fitli basketbol [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-4310","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Pandalar: query() i\u015flevinde bir de\u011fi\u015fken nas\u0131l kullan\u0131l\u0131r?<\/title>\n<meta name=\"description\" content=\"Bu e\u011fitimde bir pandas query() i\u015flevinde bir de\u011fi\u015fkenin nas\u0131l kullan\u0131laca\u011f\u0131 bir \u00f6rnekle 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