M\u00e9todo 1: Use Base R<\/span><\/strong><\/span><\/p>\n M\u00e9todo 2: use ggplot2<\/strong><\/span><\/p>\n Os exemplos a seguir mostram como usar cada m\u00e9todo na pr\u00e1tica com o seguinte quadro de dados em R:<\/span><\/p>\n O c\u00f3digo a seguir mostra como criar boxplots com valores m\u00e9dios na base R:<\/span><\/span> <\/p>\n As linhas pretas dentro de cada boxplot representam o valor mediano<\/strong> e os c\u00edrculos pretos dentro de cada boxplot representam o valor m\u00e9dio<\/strong> .<\/span><\/p>\n Nota<\/strong> : Altere o valor do argumento cex<\/strong> para alterar o tamanho do c\u00edrculo.<\/span><\/p>\n O c\u00f3digo a seguir mostra como criar boxplots com valores m\u00e9dios no ggplot2:<\/span> <\/p>\n As linhas pretas dentro de cada boxplot representam o valor mediano<\/strong> e os c\u00edrculos pretos dentro de cada boxplot representam o valor m\u00e9dio<\/strong> .<\/span><\/p>\n Nota<\/strong> : Altere o valor do argumento size<\/b> na fun\u00e7\u00e3o stat_summary()<\/strong> para alterar o tamanho do c\u00edrculo.<\/span><\/p>\n Os tutoriais a seguir oferecem informa\u00e7\u00f5es adicionais sobre boxplots:<\/span><\/p>\n Quando voc\u00ea deve usar um box plot? (3 cen\u00e1rios)<\/a> Voc\u00ea pode usar os seguintes m\u00e9todos para desenhar um box plot com um valor m\u00e9dio em R: M\u00e9todo 1: Use Base R #create boxplots boxplot(df$values~df$group) #calculate mean value by group means <- tapply(df$values, df$group, mean) #add means as circles to each boxplot points(means, pch= 20 ) M\u00e9todo 2: use ggplot2 library (ggplot2) #create boxplots with […]<\/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-3137","post","type-post","status-publish","format-standard","hentry","category-guia"],"yoast_head":"\n #create boxplots\n<\/span>boxplot(df$values~df$group)\n\n#calculate mean value by group\n<\/span>means <- tapply(df$values, df$group, mean)\n\n#add means as circles to each boxplot\n<\/span>points(means, pch= 20<\/span> )<\/strong><\/pre>\n library<\/span> (ggplot2)\n\n#create boxplots with mean values shown as circles\n<\/span>ggplot(df, aes(x=group, y=values, fill=group)) +\n geom_boxplot() +\n stat_summary(fun=mean, geom=' point<\/span> ', shape= 20<\/span> )\n<\/strong><\/span><\/pre>\n #create data frame\ndf <- data. frame<\/span> (team=rep(c('A', 'B', 'C'), each= 5<\/span> ),\n points=c(4, 4, 5, 6, 8, 7, 6, 8, 9, 12,\n 11, 12, 13, 16, 18))<\/span>\n\n#view first six rows of data frame\nhead(df)\n\n team points\n1 to 4\n2 to 4\n3 to 5\n4 to 6\n5 to 8\n6 B 7\n<\/span><\/span><\/strong><\/pre>\n Exemplo 1: Crie boxplots com valores m\u00e9dios na base R<\/span><\/strong><\/h3>\n
#create boxplots\n<\/span>boxplot(df$points~df$team)\n\n#calculate mean value by group\n<\/span>means <- tapply(df$points, df$team, mean)\n\n#add means as circles to each boxplot\n<\/span>points(means, pch= 20<\/span> , cex= 1.5<\/span> )<\/strong> <\/pre>\n![\"\"](\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/boxplot_mean1.jpg\")
<\/p>\n Exemplo 2: Crie boxplots com valores m\u00e9dios em ggplot2<\/span><\/strong><\/h3>\n
library<\/span> (ggplot2)\n\n#create boxplots with mean values\n<\/span>ggplot(df, aes(x=team, y=points, fill=team)) +\n geom_boxplot() +\n stat_summary(fun=mean, geom=' point<\/span> ', shape= 20<\/span> , size= 8<\/span> ) +\n theme(legend. position<\/span> = ' none<\/span> ')<\/strong> <\/pre>\n![\"boxplot](\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/boxplot_mean2.jpg\")
<\/p>\n Recursos adicionais<\/strong><\/span><\/h3>\n
Como identificar assimetria em box plots<\/a>
Como comparar gr\u00e1ficos de caixa<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"