{"id":2334,"date":"2023-07-22T17:32:44","date_gmt":"2023-07-22T17:32:44","guid":{"rendered":"https:\/\/statorials.org\/pl\/numpy-dodaj-wiersz-do-macierzy\/"},"modified":"2023-07-22T17:32:44","modified_gmt":"2023-07-22T17:32:44","slug":"numpy-dodaj-wiersz-do-macierzy","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/numpy-dodaj-wiersz-do-macierzy\/","title":{"rendered":"Jak doda\u0107 wiersz do macierzy w numpy (z przyk\u0142adami)"},"content":{"rendered":"

<\/p>\n

\n

Aby doda\u0107 wiersz do macierzy w NumPy, mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni:<\/span><\/p>\n

 #add new_row to current_matrix<\/span>\ncurrent_matrix = np. vstack<\/span> ([current_matrix, new_row])\n<\/strong><\/pre>\n
 Mo\u017cesz tak\u017ce u\u017cy\u0107 poni\u017cszej sk\u0142adni, aby doda\u0107 tylko wiersze do macierzy, kt\u00f3ra spe\u0142nia okre\u015blony warunek:<\/span><\/p>\n
 #only add rows where first element is less than 10<\/span>\ncurrent_matrix = np. vstack<\/span> ((current_matrix, new_rows[new_rows[:,0] < 10<\/span> ]))<\/strong><\/pre>\n
 Poni\u017csze przyk\u0142ady pokazuj\u0105, jak u\u017cywa\u0107 tej sk\u0142adni w praktyce.<\/span><\/p>\n
 Przyk\u0142ad 1: Dodaj wiersz do macierzy w NumPy<\/strong><\/span><\/h3>\n
 Poni\u017cszy kod pokazuje, jak doda\u0107 nowy wiersz do macierzy w NumPy:<\/span><\/p>\n
 import<\/span> numpy as<\/span> np\n\n#define matrix\n<\/span>current_matrix = np. array<\/span> ([[1,2,3], [4, 5, 6], [7, 8, 9]])\n\n#define row to add\n<\/span>new_row = np. array<\/span> ([10, 11, 12])\n\n#add new row to matrix\n<\/span>current_matrix = np. vstack<\/span> ([current_matrix, new_row])\n\n#view updated matrix\n<\/span>current_matrix\n\narray([[ 1, 2, 3],\n       [4,5,6],\n       [7, 8, 9],\n       [10, 11, 12]])\n<\/strong><\/span><\/pre>\n
 Zauwa\u017c, \u017ce ostatni wiersz zosta\u0142 pomy\u015blnie dodany do macierzy.<\/span><\/p>\n
 Przyk\u0142ad 2: Dodaj wiersze do macierzy na podstawie warunku<\/strong><\/span><\/h3>\n
 Poni\u017cszy kod pokazuje, jak doda\u0107 wiele nowych wierszy do istniej\u0105cej macierzy na podstawie okre\u015blonego warunku:<\/span><\/span><\/p>\n
 import<\/span> numpy as<\/span> np\n\n#define matrix\n<\/span>current_matrix = np. array<\/span> ([[1, 2, 3], [4, 5, 6], [7, 8, 9]])\n\n#define potential new rows to add\n<\/span>new_rows = np. array<\/span> ([[6, 8, 10], [8, 10, 12], [10, 12, 14]])\n\n#only add rows where first element in row is less than 10\n<\/span>current_matrix = np. vstack<\/span> ((current_matrix, new_rows[new_rows[:,0] < 10<\/span> ]))\n\n#view updated matrix\n<\/span>current_matrix\n\narray([[ 1, 2, 3],\n       [4,5,6],\n       [7, 8, 9],\n       [6, 8, 10],\n       [8, 10, 12]])\n<\/span><\/span><\/strong><\/pre>\n
 Dodano tylko wiersze, kt\u00f3rych pierwszy element by\u0142 mniejszy ni\u017c 10.<\/span><\/p>\n
 Uwaga<\/strong> : pe\u0142n\u0105 dokumentacj\u0119 online dotycz\u0105c\u0105 funkcji vstack()<\/strong> mo\u017cna znale\u017a\u0107 tutaj<\/a> .<\/span><\/p>\n
 Dodatkowe zasoby<\/strong><\/span><\/h3>\n
 Poni\u017csze samouczki wyja\u015bniaj\u0105, jak wykonywa\u0107 inne typowe operacje w NumPy:<\/span><\/p>\n
 Jak znale\u017a\u0107 indeks warto\u015bci w tablicy NumPy<\/a>
 Jak doda\u0107 tablic\u0119 Numpy do Pandas DataFrame<\/a>
 Jak przekonwertowa\u0107 tablic\u0119 NumPy na Pandas DataFrame<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Aby doda\u0107 wiersz do macierzy w NumPy, mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni: #add new_row to current_matrix current_matrix = np. vstack ([current_matrix, new_row]) Mo\u017cesz tak\u017ce u\u017cy\u0107 poni\u017cszej sk\u0142adni, aby doda\u0107 tylko wiersze do macierzy, kt\u00f3ra spe\u0142nia okre\u015blony warunek: #only add rows where first element is less than 10 current_matrix = np. vstack ((current_matrix, new_rows[new_rows[:,0] < 10 ])) […]<\/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-2334","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"\nJak doda\u0107 wiersz do macierzy w NumPy (z przyk\u0142adami) - Statologia<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak doda\u0107 wiersz do macierzy w NumPy, podaj\u0105c kilka przyk\u0142ad\u00f3w.\" \/>\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\/numpy-dodaj-wiersz-do-macierzy\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak doda\u0107 wiersz do macierzy w NumPy (z przyk\u0142adami) - Statologia\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak doda\u0107 wiersz do macierzy w NumPy, podaj\u0105c kilka przyk\u0142ad\u00f3w.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/numpy-dodaj-wiersz-do-macierzy\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-22T17:32:44+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=\"1 minuta\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pl\/numpy-dodaj-wiersz-do-macierzy\/\",\"url\":\"https:\/\/statorials.org\/pl\/numpy-dodaj-wiersz-do-macierzy\/\",\"name\":\"Jak doda\u0107 wiersz do macierzy w NumPy (z przyk\u0142adami) - Statologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-22T17:32:44+00:00\",\"dateModified\":\"2023-07-22T17:32:44+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak doda\u0107 wiersz do macierzy w NumPy, podaj\u0105c kilka przyk\u0142ad\u00f3w.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/numpy-dodaj-wiersz-do-macierzy\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/numpy-dodaj-wiersz-do-macierzy\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/numpy-dodaj-wiersz-do-macierzy\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak doda\u0107 wiersz do macierzy w numpy (z przyk\u0142adami)\"}]},{\"@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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