{"id":1603,"date":"2023-07-25T16:56:36","date_gmt":"2023-07-25T16:56:36","guid":{"rendered":"https:\/\/statorials.org\/tr\/pandalar-satirlar-arasindaki-fark\/"},"modified":"2023-07-25T16:56:36","modified_gmt":"2023-07-25T16:56:36","slug":"pandalar-satirlar-arasindaki-fark","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/pandalar-satirlar-arasindaki-fark\/","title":{"rendered":"Pandalar: i\u0307ki \u00e7izgi aras\u0131ndaki fark nas\u0131l bulunur?"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Bir pandan\u0131n DataFrame&#8217;indeki iki sat\u0131r aras\u0131ndaki fark\u0131 bulmak i\u00e7in <strong>DataFrame.diff()<\/strong> i\u015flevini kullanabilirsiniz.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Bu i\u015flev a\u015fa\u011f\u0131daki s\u00f6zdizimini kullan\u0131r:<\/span><\/p>\n<p> <strong><span style=\"color: #000000;\">DataFrame.diff(d\u00f6nemler=1, eksen=0)<\/span><\/strong><\/p>\n<p> <span style=\"color: #000000;\">Alt\u0131n:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>d\u00f6nemler:<\/strong> fark\u0131 hesaplamak i\u00e7in \u00f6nceki sat\u0131rlar\u0131n say\u0131s\u0131.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>eksen:<\/strong> sat\u0131rlar (0) veya s\u00fctunlar (1) aras\u0131ndaki fark\u0131 bulun.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki \u00f6rnekler bu fonksiyonun pratikte nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6stermektedir.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\u00d6rnek 1: \u00d6nceki sat\u0131rlar\u0131n her biri aras\u0131ndaki fark\u0131 bulun<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki pandalara sahip oldu\u011fumuzu varsayal\u0131m DataFrame:<\/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;\">period<\/span> ': [1, 2, 3, 4, 5, 6, 7, 8],\n                   ' <span style=\"color: #ff0000;\">sales<\/span> ': [12, 14, 15, 15, 18, 20, 19, 24],\n                   ' <span style=\"color: #ff0000;\">returns<\/span> ': [2, 2, 3, 3, 5, 4, 4, 6]})\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span>df\n\n\tperiod sales returns\n0 1 12 2\n1 2 14 2\n2 3 15 3\n3 4 15 3\n4 5 18 5\n5 6 20 4\n6 7 19 4\n7 8 24 6<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki kod, bir DataFrame&#8217;in her ge\u00e7erli sat\u0131r\u0131 ile \u00f6nceki sat\u0131r aras\u0131ndaki fark\u0131n nas\u0131l bulunaca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#add new column to represent sales differences between each row<\/span>\ndf[' <span style=\"color: #ff0000;\">sales_diff<\/span> '] = df[' <span style=\"color: #ff0000;\">sales<\/span> ']. <span style=\"color: #3366ff;\">diff<\/span> ()\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span>df\n\n        period sales returns sales_diff\n0 1 12 2 NaN\n1 2 14 2 2.0\n2 3 15 3 1.0\n3 4 15 3 0.0\n4 5 18 5 3.0\n5 6 20 4 2.0\n6 7 19 4 -1.0\n7 8 24 6 5.0\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\u00d6nceki birka\u00e7 sat\u0131r aras\u0131ndaki fark\u0131 da bulabilece\u011fimizi unutmay\u0131n. \u00d6rne\u011fin, a\u015fa\u011f\u0131daki kod, her ge\u00e7erli sat\u0131r ile \u00fc\u00e7 sat\u0131r \u00f6nce g\u00f6r\u00fcnen sat\u0131r aras\u0131ndaki fark\u0131n nas\u0131l bulunaca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#add new column to represent sales differences between current row and 3 rows earlier<\/span>\ndf[' <span style=\"color: #ff0000;\">sales_diff<\/span> '] = df[' <span style=\"color: #ff0000;\">sales<\/span> ']. <span style=\"color: #3366ff;\">diff<\/span> (periods= <span style=\"color: #008000;\">3<\/span> )\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span>df\n\n        period sales returns sales_diff\n0 1 12 2 NaN\n1 2 14 2 NaN\n2 3 15 3 NaN\n3 4 15 3 3.0\n4 5 18 5 4.0\n5 6 20 4 5.0\n6 7 19 4 4.0\n7 8 24 6 6.0<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>\u00d6rnek 2: Ko\u015fula g\u00f6re fark\u0131 bulun<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Ge\u00e7erli sat\u0131r ile \u00f6nceki sat\u0131r aras\u0131ndaki fark\u0131n belirli bir de\u011ferden az veya fazla oldu\u011fu sat\u0131rlar\u0131 g\u00f6r\u00fcnt\u00fclemek i\u00e7in DataFrame&#8217;i de filtreleyebiliriz.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\u00d6rne\u011fin, a\u015fa\u011f\u0131daki kod yaln\u0131zca ge\u00e7erli sat\u0131r\u0131n de\u011ferinin \u00f6nceki sat\u0131r\u0131n de\u011ferinden <strong>k\u00fc\u00e7\u00fck<\/strong> oldu\u011fu sat\u0131rlar\u0131 d\u00f6nd\u00fcr\u00fcr:<\/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;\">period<\/span> ': [1, 2, 3, 4, 5, 6, 7, 8],\n                   ' <span style=\"color: #ff0000;\">sales<\/span> ': [12, 14, 15, 13, 18, 20, 19, 24],\n                   ' <span style=\"color: #ff0000;\">returns<\/span> ': [2, 2, 3, 3, 5, 4, 4, 6]})\n\n<span style=\"color: #008080;\">#find difference between each current row and the previous row\n<\/span>df[' <span style=\"color: #ff0000;\">sales_diff<\/span> '] = df[' <span style=\"color: #ff0000;\">sales<\/span> ']. <span style=\"color: #3366ff;\">diff<\/span> ()\n\n<span style=\"color: #008080;\">#filter for rows where difference is less than zero\n<\/span>df = df[df[' <span style=\"color: #ff0000;\">sales_diff<\/span> ']&lt; <span style=\"color: #008000;\">0<\/span> ]\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span>df\n\n        period sales returns sales_diff\n3 4 13 3 -2.0\n6 7 19 4 -1.0<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Ek kaynaklar<\/strong><\/span><\/h3>\n<p><a href=\"https:\/\/statorials.org\/tr\/tek-pandalar-birden-fazla-sutun\/\" target=\"_blank\" rel=\"noopener\">Pandas&#8217;ta birden \u00e7ok s\u00fctunda benzersiz de\u011ferler nas\u0131l bulunur?<\/a><br \/> Pandas DataFrame&#8217;i s\u00fctun de\u011ferlerine g\u00f6re filtreleme<br \/> <a href=\"https:\/\/statorials.org\/tr\/pandalar-satirlari-dizine-gore-seciyor\/\" target=\"_blank\" rel=\"noopener\">Pandas DataFrame&#8217;de sat\u0131rlar\u0131 dizine g\u00f6re se\u00e7me<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bir pandan\u0131n DataFrame&#8217;indeki iki sat\u0131r aras\u0131ndaki fark\u0131 bulmak i\u00e7in DataFrame.diff() i\u015flevini kullanabilirsiniz. Bu i\u015flev a\u015fa\u011f\u0131daki s\u00f6zdizimini kullan\u0131r: DataFrame.diff(d\u00f6nemler=1, eksen=0) Alt\u0131n: d\u00f6nemler: fark\u0131 hesaplamak i\u00e7in \u00f6nceki sat\u0131rlar\u0131n say\u0131s\u0131. eksen: sat\u0131rlar (0) veya s\u00fctunlar (1) aras\u0131ndaki fark\u0131 bulun. A\u015fa\u011f\u0131daki \u00f6rnekler bu fonksiyonun pratikte nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6stermektedir. \u00d6rnek 1: \u00d6nceki sat\u0131rlar\u0131n her biri aras\u0131ndaki fark\u0131 bulun A\u015fa\u011f\u0131daki pandalara [&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-1603","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: \u0130ki \u00e7izgi aras\u0131ndaki fark nas\u0131l bulunur?<\/title>\n<meta name=\"description\" content=\"Bu e\u011fitimde, bir pandan\u0131n DataFrame&#039;indeki iki sat\u0131r aras\u0131ndaki fark\u0131n nas\u0131l bulunaca\u011f\u0131 birka\u00e7 \u00f6rnekle 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