{"id":4165,"date":"2023-07-13T04:01:35","date_gmt":"2023-07-13T04:01:35","guid":{"rendered":"https:\/\/statorials.org\/pt\/colunas-de-linhas-de-soma-numpy\/"},"modified":"2023-07-13T04:01:35","modified_gmt":"2023-07-13T04:01:35","slug":"colunas-de-linhas-de-soma-numpy","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/colunas-de-linhas-de-soma-numpy\/","title":{"rendered":"Como adicionar linhas e colunas de um array numpy"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar os seguintes m\u00e9todos para adicionar linhas e colunas de uma matriz NumPy 2D:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 1: adicionar linhas do array NumPy<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>arr. <span style=\"color: #3366ff;\">sum<\/span> (axis= <span style=\"color: #008000;\">1<\/span> )\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 2: adicionar colunas da matriz NumPy<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>arr. <span style=\"color: #3366ff;\">sum<\/span> (axis= <span style=\"color: #008000;\">0<\/span> )<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir mostram como usar cada m\u00e9todo na pr\u00e1tica com o seguinte array NumPy 2D:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <b><span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np\n\n<span style=\"color: #008080;\">#create NumPy array\n<\/span>arr = np. <span style=\"color: #3366ff;\">arange<\/span> ( <span style=\"color: #008000;\">18<\/span> ). <span style=\"color: #3366ff;\">reshape<\/span> ( <span style=\"color: #008000;\">6,3<\/span> <span style=\"color: #008000;\">)<\/span>\n\n<span style=\"color: #008080;\">#view NumPy array\n<\/span><span style=\"color: #008000;\">print<\/span> (arr)\n\n[[ 0 1 2]\n [3 4 5]\n [6 7 8]\n [9 10 11]\n [12 13 14]\n [15 16 17]]\n<\/b><\/pre>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo 1: Adicione as linhas do array NumPy<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Podemos usar a seguinte sintaxe para adicionar as linhas de um array NumPy:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np\n\n<span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#calculate sum of rows in NumPy array\n<\/span>arr. <span style=\"color: #3366ff;\">sum<\/span> (axis= <span style=\"color: #008000;\">1<\/span> )\n\narray([ 3, 12, 21, 30, 39, 48])\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">A tabela resultante mostra a soma de cada linha da tabela NumPy 2D.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Por exemplo:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">A soma dos valores da primeira linha \u00e9 0 + 1 + 2 = <strong>3<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">A soma dos valores da primeira linha \u00e9 3 + 4 + 5 = <strong>12<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">A soma dos valores da primeira linha \u00e9 6 + 7 + 8 = <strong>21<\/strong> .<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">E assim por diante.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo 2: soma das colunas da tabela NumPy<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Podemos usar a seguinte sintaxe para adicionar as colunas de um array NumPy:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np\n\n<span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#calculate sum of columns in NumPy array\n<\/span>arr. <span style=\"color: #3366ff;\">sum<\/span> (axis= <span style=\"color: #008000;\">0<\/span> )\n\narray([45, 51, 57])\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">A tabela resultante mostra a soma de cada coluna da tabela NumPy 2D.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Por exemplo:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">A soma dos valores da primeira coluna \u00e9 0+3+6+9+12+15 = <strong>45<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">A soma dos valores da primeira linha \u00e9 1+4+7+10+13+16 = <strong>51<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">A soma dos valores da primeira linha \u00e9 2+5+8+11+14+17 = <strong>57<\/strong> .<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\"><strong>Nota<\/strong> : Voc\u00ea pode encontrar a documenta\u00e7\u00e3o completa para a fun\u00e7\u00e3o NumPy <strong>sum()<\/strong> <a href=\"https:\/\/numpy.org\/doc\/stable\/reference\/generated\/numpy.sum.html\" target=\"_blank\" rel=\"noopener\">aqui<\/a> .<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Os tutoriais a seguir explicam como realizar outras opera\u00e7\u00f5es comuns no NumPy:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/indice-de-valor-de-localizacao-numpy\/\" target=\"_blank\" rel=\"noopener\">Como encontrar o \u00edndice de valor na matriz NumPy<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/numpy-obter-coluna\/\" target=\"_blank\" rel=\"noopener\">Como obter uma coluna espec\u00edfica de um array NumPy<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/numpy-adicionar-coluna\/\" target=\"_blank\" rel=\"noopener\">Como adicionar uma coluna a um array NumPy<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar os seguintes m\u00e9todos para adicionar linhas e colunas de uma matriz NumPy 2D: M\u00e9todo 1: adicionar linhas do array NumPy arr. sum (axis= 1 ) M\u00e9todo 2: adicionar colunas da matriz NumPy arr. sum (axis= 0 ) Os exemplos a seguir mostram como usar cada m\u00e9todo na pr\u00e1tica com o seguinte array [&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-4165","post","type-post","status-publish","format-standard","hentry","category-guia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Como adicionar linhas e colunas de uma tabela NumPy - Estatologia<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como adicionar linhas e colunas de um array NumPy 2D, com exemplos.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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