Outlier tagging boxplot r

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)

Source: stackoverflow.com

Similar codes

0 vote312 views1 answer
Correlation matrix using factors r
R
2 votes288 views3 answers
Convert na to 0 in r
R
0 vote323 views1 answer
Distance matrix in r
R
1 vote360 views1 answer
R convert matrix to list of column vectors
R
0 vote287 views1 answer
Combine row for every element of vector r
R
0 vote318 views1 answer
Error installing devtools r
R
1 vote312 views1 answer
Suppress error r
R
0 vote328 views1 answer
Change labels in legend R
R
0 vote330 views1 answer
Get plot title over two lines R
R
1 vote313 views1 answer
What is a vector in r
R