{"id":2015,"date":"2023-07-24T02:07:30","date_gmt":"2023-07-24T02:07:30","guid":{"rendered":"https:\/\/statorials.org\/pt\/sobrescrito-subscrito-em-r\/"},"modified":"2023-07-24T02:07:30","modified_gmt":"2023-07-24T02:07:30","slug":"sobrescrito-subscrito-em-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/sobrescrito-subscrito-em-r\/","title":{"rendered":"Como adicionar sobrescritos e subscritos a gr\u00e1ficos em r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar a seguinte sintaxe b\u00e1sica para adicionar sobrescritos ou subscritos a gr\u00e1ficos em R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define expression with superscript\n<\/span>x_expression &lt;- expression(x^ <span style=\"color: #008000;\">3<\/span> ~ variable ~ label)\n\n<span style=\"color: #008080;\">#define expression with subscript\n<\/span>y_expression &lt;- expression(y[ <span style=\"color: #008000;\">3<\/span> ] ~ variable ~ label)\n\n<span style=\"color: #008080;\">#add expressions to axis labels\n<\/span>plot(x, y, xlab = x_expression, ylab = y_expression)\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir mostram como usar essa sintaxe na pr\u00e1tica.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 1: Adicionar expoentes aos r\u00f3tulos dos eixos<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como adicionar expoentes aos r\u00f3tulos dos eixos de um gr\u00e1fico em R:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define data\n<\/span>x &lt;- c(1, 2, 3, 4, 5, 6, 7, 8)\ny &lt;- c(9, 12, 14, 16, 15, 19, 26, 29)\n\n<span style=\"color: #008080;\">#define x and y-axis labels with superscripts\n<\/span>x_expression &lt;- expression(x^3 ~ variable ~ label)\ny_expression &lt;- expression(y^3 ~ variable ~ label)\n\n<span style=\"color: #008080;\">#createplot\n<\/span>plot(x, y, xlab = x_expression, ylab = y_expression)\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-18901\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/sup1.png\" alt=\"expoente no eixo no gr\u00e1fico R\" width=\"464\" height=\"432\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Observe que os eixos X e Y possuem um expoente em seus r\u00f3tulos.<\/span><\/p>\n<p> <span style=\"color: #000000;\">O expoente do eixo y est\u00e1 um pouco cortado no gr\u00e1fico. Para aproximar os r\u00f3tulos dos eixos do gr\u00e1fico, podemos usar a fun\u00e7\u00e3o <a href=\"https:\/\/statorials.org\/pt\/por-funcao-em-r\/\" target=\"_blank\" rel=\"noopener\">par()<\/a> em R:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#adjust by values (default is (3, 0, 0))\n<span style=\"color: #000000;\">by(mgp=c(2.5, 1, 0))<\/span><\/span>\n\n<span style=\"color: #008080;\">#createplot\n<\/span>plot(x, y, xlab = x_expression, ylab = y_expression)<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-18902 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/sup2.png\" alt=\"\" width=\"472\" height=\"426\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\"><strong>Nota<\/strong> : Escolhemos \u201c3\u201d como um valor aleat\u00f3rio para colocar como expoente. Sinta-se \u00e0 vontade para colocar qualquer valor num\u00e9rico ou caractere como sobrescrito.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 2: Adicionar subscritos aos r\u00f3tulos dos eixos<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como adicionar \u00edndices aos r\u00f3tulos dos eixos de um gr\u00e1fico em R:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define data\n<\/span>x &lt;- c(1, 2, 3, 4, 5, 6, 7, 8)\ny &lt;- c(9, 12, 14, 16, 15, 19, 26, 29)\n\n<span style=\"color: #008080;\">#define x and y-axis labels with superscripts\n<\/span>x_expression &lt;- expression(x[3] ~ variable ~ label)\ny_expression &lt;- expression(y[3] ~ variable ~ label)\n\n<span style=\"color: #008080;\">#createplot\n<\/span>plot(x, y, xlab = x_expression, ylab = y_expression)<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-18903\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/sup3.png\" alt=\"subscrito em r\u00f3tulos de eixo em R\" width=\"459\" height=\"410\" srcset=\"\" sizes=\"auto, \"><\/p>\n<h3> <strong>Exemplo 3: Adicionando sobrescritos e subscritos dentro do gr\u00e1fico<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como adicionar um sobrescrito a um elemento de texto dentro de um caminho:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define data\n<\/span>x &lt;- c(1, 2, 3, 4, 5, 6, 7, 8)\ny &lt;- c(9, 12, 14, 16, 15, 19, 26, 29)\n\n<span style=\"color: #008080;\">#createplot\n<\/span>plot(x, y)\n\n<span style=\"color: #008080;\">#define label with superscript to add to plot\n<\/span>R2_expression &lt;- expression(paste(\" \", R^2 , \"= \", .905))\n\n<span style=\"color: #008080;\">#add text to plot\n<\/span>text(x = 2, y = 25, label = R2_expression)\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-18904 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/sup4.png\" alt=\"\" width=\"467\" height=\"426\" srcset=\"\" sizes=\"auto, \"><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/pt\/grafico-de-dispersao-r-com-multiplas-variaveis\/\" target=\"_blank\" rel=\"noopener\">Como criar um gr\u00e1fico de dispers\u00e3o em R com m\u00faltiplas vari\u00e1veis<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/boxplot-lado-a-lado-em-r\/\" target=\"_blank\" rel=\"noopener\">Como criar gr\u00e1ficos de caixa lado a lado em R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/r-superposicao-de-tracos\/\" target=\"_blank\" rel=\"noopener\">Como sobrepor gr\u00e1ficos em R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar a seguinte sintaxe b\u00e1sica para adicionar sobrescritos ou subscritos a gr\u00e1ficos em R: #define expression with superscript x_expression &lt;- expression(x^ 3 ~ variable ~ label) #define expression with subscript y_expression &lt;- expression(y[ 3 ] ~ variable ~ label) #add expressions to axis labels plot(x, y, xlab = x_expression, ylab = y_expression) Os [&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-2015","post","type-post","status-publish","format-standard","hentry","category-guia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - 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