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outlier tagging boxplot r

Trustworthy Whale answered on July 13, 2021 Popularity 3/10 Helpfulness 10/10

answer outlier tagging boxplot r

outlier tagging boxplot r

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library(dplyr)
library(ggplot2)

is_outlier <- function(x) {
  return(x < quantile(x, 0.25) - 1.5 * IQR(x) | x > quantile(x, 0.75) + 1.5 * IQR(x))
}

mtcars %>%
  group_by(cyl) %>%
  mutate(outlier = ifelse(is_outlier(drat), drat, as.numeric(NA))) %>%
  ggplot(., aes(x = factor(cyl), y = drat)) +
    geom_boxplot() +
    geom_text(aes(label = outlier), na.rm = TRUE, hjust = -0.3)

Popularity 3/10 Helpfulness 10/10 Language r

Source: stackoverflow.com

Tags: boxplot r tagging

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