{"id":2045,"date":"2023-07-23T23:03:35","date_gmt":"2023-07-23T23:03:35","guid":{"rendered":"https:\/\/statorials.org\/tr\/pandalar-anlatiyor\/"},"modified":"2023-07-23T23:03:35","modified_gmt":"2023-07-23T23:03:35","slug":"pandalar-anlatiyor","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/pandalar-anlatiyor\/","title":{"rendered":"Pandalarda tarif et() fonksiyonu nas\u0131l kullan\u0131l\u0131r (\u00f6rneklerle)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Bir pandan\u0131n DataFrame&#8217;i i\u00e7in tan\u0131mlay\u0131c\u0131 istatistikler olu\u015fturmak amac\u0131yla <strong>define()<\/strong> i\u015flevini kullanabilirsiniz.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Bu i\u015flev a\u015fa\u011f\u0131daki temel s\u00f6zdizimini kullan\u0131r:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong>df. <span style=\"color: #3366ff;\">describe<\/span> ()\n<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki \u00f6rnekler, bu s\u00f6zdiziminin pratikte a\u015fa\u011f\u0131daki pandalar DataFrame ile nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">import<\/span> pandas <span style=\"color: #008000;\">as<\/span> pd\n\n<span style=\"color: #008080;\">#createDataFrame\n<\/span>df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">team<\/span> ': ['A', 'A', 'B', 'B', 'B', 'C', 'C', 'C'],\n                   ' <span style=\"color: #ff0000;\">points<\/span> ': [25, 12, 15, 14, 19, 23, 25, 29],\n                   ' <span style=\"color: #ff0000;\">assists<\/span> ': [5, 7, 7, 9, 12, 9, 9, 4],\n                   ' <span style=\"color: #ff0000;\">rebounds<\/span> ': [11, 8, 10, 6, 6, 5, 9, 12]})\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span>df\n\n\tteam points assists rebounds\n0 to 25 5 11\n1 to 12 7 8\n2 B 15 7 10\n3 B 14 9 6\n4 B 19 12 6\n5 C 23 9 5\n6 C 25 9 9\n7 C 29 4 12\n<\/strong><\/span><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>\u00d6rnek 1: T\u00fcm say\u0131sal s\u00fctunlar\u0131 a\u00e7\u0131klay\u0131n<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Varsay\u0131lan olarak, <strong>define()<\/strong> i\u015flevi yaln\u0131zca bir pandan\u0131n DataFrame&#8217;inin say\u0131sal s\u00fctunlar\u0131 i\u00e7in tan\u0131mlay\u0131c\u0131 istatistikler \u00fcretir:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#generate descriptive statistics for all numeric columns\n<\/span>df. <span style=\"color: #3366ff;\">describe<\/span> ()\n\n\tpoints assists rebounds\ncount 8.000000 8.00000 8.000000\nmean 20.250000 7.75000 8.375000\nstd 6.158618 2.54951 2.559994\nmin 12.000000 4.00000 5.000000\n25% 14.750000 6.50000 6.000000\n50% 21.000000 8.00000 8.500000\n75% 25,000000 9,00000 10,250000\nmax 29.000000 12.00000 12.000000\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">DataFrame&#8217;in \u00fc\u00e7 say\u0131sal s\u00fctunu i\u00e7in tan\u0131mlay\u0131c\u0131 istatistikler g\u00f6r\u00fcnt\u00fclenir.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Not:<\/strong> Herhangi bir s\u00fctunda eksik de\u011fer varsa pandalar, tan\u0131mlay\u0131c\u0131 istatistikleri hesaplarken bu de\u011ferleri otomatik olarak hari\u00e7 tutacakt\u0131r.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\u00d6rnek 2: t\u00fcm s\u00fctunlar\u0131 tan\u0131mlay\u0131n<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">DataFrame&#8217;in her s\u00fctununa ili\u015fkin tan\u0131mlay\u0131c\u0131 istatistikleri hesaplamak i\u00e7in <strong>include=&#8217;all&#8217;<\/strong> ba\u011f\u0131ms\u0131z de\u011fi\u015fkenini kullanabiliriz:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #000000;\"><span style=\"color: #008080;\">#generate descriptive statistics for all columns\n<\/span>df. <span style=\"color: #3366ff;\">describe<\/span> (include=' <span style=\"color: #ff0000;\">all<\/span> ')\n<\/span>\n\tteam points assists rebounds\ncount 8 8.000000 8.00000 8.000000\nsingle 3 NaN NaN NaN\ntop B NaN NaN NaN\nfreq 3 NaN NaN NaN\nmean NaN 20.250000 7.75000 8.375000\nstd NaN 6.158618 2.54951 2.559994\nmin NaN 12.000000 4.00000 5.000000\n25% NaN 14.750000 6.50000 6.000000\n50% NaN 21.000000 8.00000 8.500000\n75% NaN 25.000000 9.00000 10.250000\nmax NaN 29.000000 12.00000 12.000000<\/strong><\/pre>\n<h3> <strong>\u00d6rnek 3: Belirli s\u00fctunlar\u0131 a\u00e7\u0131klama<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki kod, panda DataFrame&#8217;in belirli bir s\u00fctunu i\u00e7in tan\u0131mlay\u0131c\u0131 istatistiklerin nas\u0131l hesaplanaca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#calculate descriptive statistics for 'points' column only\n<span style=\"color: #000000;\">df[' <span style=\"color: #ff0000;\">points<\/span> ']. <span style=\"color: #3366ff;\">describe<\/span> ()\n\ncount 8.000000\nmean 20.250000\nstd 6.158618\nmin 12.000000\n25% 14.750000\n50% 21,000000\n75% 25,000000\nmax 29.000000\nName: points, dtype: float64<\/span>\n<\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki kod, birka\u00e7 belirli s\u00fctun i\u00e7in tan\u0131mlay\u0131c\u0131 istatistiklerin nas\u0131l hesaplanaca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#calculate descriptive statistics for 'points' and 'assists' columns only\n<span style=\"color: #000000;\">df[[' <span style=\"color: #ff0000;\">points<\/span> ', ' <span style=\"color: #ff0000;\">assists<\/span> ']]. <span style=\"color: #3366ff;\">describe<\/span> ()\n\n\tassist points\ncount 8.000000 8.00000\nmean 20.250000 7.75000\nstd 6.158618 2.54951\nmin 12.000000 4.00000\n25% 14.750000 6.50000\n50% 21,000000 8,00000\n75% 25.000000 9.00000\nmax 29.000000 12.00000\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>A\u00e7\u0131klama()<\/strong> i\u015flevine ili\u015fkin t\u00fcm belgeleri <a href=\"https:\/\/pandas.pydata.org\/pandas-docs\/stable\/reference\/api\/pandas.DataFrame.describe.html\" target=\"_blank\" rel=\"noopener\">burada<\/a> bulabilirsiniz.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Ek kaynaklar<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki e\u011fitimlerde pandalarda di\u011fer ortak i\u015flevlerin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi a\u00e7\u0131klanmaktad\u0131r:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/tr\/sutundaki-pandalarin-benzersiz-degerleri\/\" target=\"_blank\" rel=\"noopener\">Pandalar: Bir s\u00fctunda benzersiz de\u011ferler nas\u0131l bulunur?<\/a><br \/> <a href=\"https:\/\/statorials.org\/tr\/pandalar-satirlar-arasindaki-fark\/\" target=\"_blank\" rel=\"noopener\">Pandalar: \u0130ki \u00e7izgi aras\u0131ndaki fark nas\u0131l bulunur?<\/a><br \/> <a href=\"https:\/\/statorials.org\/tr\/pandalar-eksik-degerleri-sayar\/\" target=\"_blank\" rel=\"noopener\">Pandalar: DataFrame&#8217;de eksik de\u011ferler nas\u0131l say\u0131l\u0131r?<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bir pandan\u0131n DataFrame&#8217;i i\u00e7in tan\u0131mlay\u0131c\u0131 istatistikler olu\u015fturmak amac\u0131yla define() i\u015flevini kullanabilirsiniz. Bu i\u015flev a\u015fa\u011f\u0131daki temel s\u00f6zdizimini kullan\u0131r: df. describe () A\u015fa\u011f\u0131daki \u00f6rnekler, bu s\u00f6zdiziminin pratikte a\u015fa\u011f\u0131daki pandalar DataFrame ile nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir: import pandas as pd #createDataFrame df = pd. DataFrame ({&#8216; team &#8216;: [&#8216;A&#8217;, &#8216;A&#8217;, &#8216;B&#8217;, &#8216;B&#8217;, &#8216;B&#8217;, &#8216;C&#8217;, &#8216;C&#8217;, &#8216;C&#8217;], &#8216; points &#8216;: [&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-2045","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>Pandalarda define() fonksiyonu nas\u0131l kullan\u0131l\u0131r (\u00f6rneklerle) \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"Bu e\u011fitimde pandalarda define() fonksiyonunun nas\u0131l kullan\u0131laca\u011f\u0131 \u00e7e\u015fitli \u00f6rneklerle a\u00e7\u0131klanmaktad\u0131r.\" \/>\n<meta name=\"robots\" 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