{"id":2184,"date":"2023-07-23T08:40:50","date_gmt":"2023-07-23T08:40:50","guid":{"rendered":"https:\/\/statorials.org\/tr\/degerlerin-uzunlugu-endeksin-uzunluguna-karsilik-gelmiyor\/"},"modified":"2023-07-23T08:40:50","modified_gmt":"2023-07-23T08:40:50","slug":"degerlerin-uzunlugu-endeksin-uzunluguna-karsilik-gelmiyor","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/degerlerin-uzunlugu-endeksin-uzunluguna-karsilik-gelmiyor\/","title":{"rendered":"Nas\u0131l d\u00fczeltilir: de\u011ferlerin uzunlu\u011fu dizin uzunlu\u011fuyla e\u015fle\u015fmiyor"},"content":{"rendered":"

<\/p>\n

\n

Pandalar\u0131 kullan\u0131rken kar\u015f\u0131la\u015fabilece\u011finiz bir hata:<\/span><\/p>\n

 ValueError: Length of values does not match length of index\n<\/span><\/span><\/strong><\/pre>\n
 Bu hata, bir pandas DataFrame’deki yeni bir s\u00fctuna bir dizi NumPy de\u011feri atamaya \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131zda ortaya \u00e7\u0131kar, ancak dizinin uzunlu\u011fu, dizinin ge\u00e7erli uzunlu\u011fuyla e\u015fle\u015fmez.<\/span><\/p>\n
 A\u015fa\u011f\u0131daki \u00f6rnekte bu hatan\u0131n pratikte nas\u0131l d\u00fczeltilece\u011fi g\u00f6sterilmektedir.<\/span><\/p>\n
 Hata nas\u0131l yeniden olu\u015fturulur?<\/strong><\/span><\/h3>\n
 A\u015fa\u011f\u0131daki pandalara sahip oldu\u011fumuzu varsayal\u0131m DataFrame:<\/span><\/p>\n
 import<\/span> pandas as<\/span> pd\n\n#define DataFrame\ndf = pd. DataFrame<\/span> ({' points<\/span> ': [25, 12, 15, 14],\n                   ' assists<\/span> ': [5, 7, 13, 12]})\n\n#view DataFrame\n<\/span>print<\/span> (df)\n\n   assist points\n0 25 5\n1 12 7\n2 15 13\n3 14 12\n<\/span><\/span><\/strong><\/pre>\n
 \u015eimdi NumPy dizisi olarak “s\u0131\u00e7rayanlar” ad\u0131nda yeni bir s\u00fctun eklemeye \u00e7al\u0131\u015ft\u0131\u011f\u0131m\u0131z\u0131 varsayal\u0131m:<\/span><\/p>\n
 import<\/span> numpy as<\/span> np<\/span>\n\n#attempt to add 'rebounds' column\ndf[' rebounds<\/span> '] = np. array<\/span> ([3, 3, 7])\n\nValueError<\/span> : Length of values (3) does not match length of index (4)\n<\/span><\/span><\/strong><\/pre>\n
 Bir ValueError<\/strong> al\u0131yoruz \u00e7\u00fcnk\u00fc uzunlu\u011fu 3<\/strong> olan bir NumPy dizisini, uzunlu\u011fu 4<\/strong> olan bir DataFrame’e eklemeye \u00e7al\u0131\u015f\u0131yoruz.<\/span><\/p>\n
 Hata nas\u0131l d\u00fczeltilir?<\/strong><\/span><\/h3>\n
 Bu hatay\u0131 d\u00fczeltmenin en kolay yolu, NumPy dizisi yerine pandas serisini kullanarak yeni bir s\u00fctun olu\u015fturmakt\u0131r.<\/span><\/p>\n
 Varsay\u0131lan olarak panda serisinin uzunlu\u011fu DataFrame indeksinin uzunlu\u011funa kar\u015f\u0131l\u0131k gelmiyorsa NaN de\u011ferleri girilecektir:<\/span><\/p>\n
 #create 'rebounds' column\n<\/span>df[' rebounds<\/span> '] = pd. Series<\/span> ([3, 3, 7])<\/span>\n\n#view updated DataFrame\ndf\n\n\tpoints assists rebounds\n0 25 5 3.0\n1 12 7 3.0\n2 15 13 7.0\n3 14 12 NaN<\/span><\/span><\/strong><\/pre>\n
 Bir pandas serisi kullanarak “geri d\u00f6nenler” s\u00fctununu ba\u015far\u0131yla ekleyebiliriz ve eksik de\u011ferler basit\u00e7e NaN ile doldurulur.<\/span><\/p>\n
 Fillna()<\/strong> y\u00f6ntemini kullanarak NaN de\u011ferlerini h\u0131zl\u0131 bir \u015fekilde ba\u015fka bir de\u011fere (s\u0131f\u0131r gibi) d\u00f6n\u00fc\u015ft\u00fcrebilece\u011fimizi unutmay\u0131n:<\/span><\/p>\n
 #fill in NaN values with zero\ndf = df. fillna<\/span> (0)\n\n<\/span>#view updated DataFrame\ndf\n\npoints assists rebounds\n0 25 5 3.0\n1 12 7 3.0\n2 15 13 7.0\n3 14 12 0.0<\/span><\/span><\/strong><\/pre>\n
 NaN de\u011ferinin s\u0131f\u0131ra d\u00f6n\u00fc\u015ft\u00fcr\u00fcld\u00fc\u011f\u00fcn\u00fc unutmay\u0131n.<\/span><\/p>\n
 Ek kaynaklar<\/strong><\/span><\/h3>\n
 A\u015fa\u011f\u0131daki e\u011fitimlerde Python’daki di\u011fer yayg\u0131n hatalar\u0131n nas\u0131l d\u00fczeltilece\u011fi a\u00e7\u0131klanmaktad\u0131r:<\/span><\/p>\n
 Pandas’ta KeyError Nas\u0131l D\u00fczeltilir<\/a>
 Nas\u0131l d\u00fczeltilir? ValueError: float NaN int’ye d\u00f6n\u00fc\u015ft\u00fcr\u00fclemiyor<\/a>
 Nas\u0131l d\u00fczeltilir? ValueError: \u0130\u015flenenler \u015fekillerle yay\u0131nlanamad\u0131<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Pandalar\u0131 kullan\u0131rken kar\u015f\u0131la\u015fabilece\u011finiz bir hata: ValueError: Length of values does not match length of index Bu hata, bir pandas DataFrame’deki yeni bir s\u00fctuna bir dizi NumPy de\u011feri atamaya \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131zda ortaya \u00e7\u0131kar, ancak dizinin uzunlu\u011fu, dizinin ge\u00e7erli uzunlu\u011fuyla e\u015fle\u015fmez. A\u015fa\u011f\u0131daki \u00f6rnekte bu hatan\u0131n pratikte nas\u0131l d\u00fczeltilece\u011fi g\u00f6sterilmektedir. Hata nas\u0131l yeniden olu\u015fturulur? A\u015fa\u011f\u0131daki pandalara sahip oldu\u011fumuzu varsayal\u0131m […]<\/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-2184","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"\nNas\u0131l D\u00fczeltilir: De\u011fer Uzunlu\u011fu Dizin Uzunlu\u011fuyla E\u015fle\u015fmiyor - Statorials<\/title>\n<meta name=\"description\" content=\"Bu e\u011fitimde Python'da \u015fu hatan\u0131n nas\u0131l d\u00fczeltilece\u011fi a\u00e7\u0131klanmaktad\u0131r: de\u011fer hatas\u0131: De\u011fer uzunlu\u011fu dizin uzunlu\u011fuyla e\u015fle\u015fmiyor.\" \/>\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\/tr\/degerlerin-uzunlugu-endeksin-uzunluguna-karsilik-gelmiyor\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Nas\u0131l D\u00fczeltilir: De\u011fer Uzunlu\u011fu Dizin Uzunlu\u011fuyla E\u015fle\u015fmiyor - 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