Скачать или смотреть Draw Error Bars with Connected Mean Points in R ggplot2 Plot | geom_errorbar, geom_line & geom_point

How to connect the mean points of error bars in the R programming language. More details: https://statisticsglobe.com/draw-erro...
R code of this video:

data ＜- data.frame(group = letters[1:5], # Create example data
mean = c(5, 3, 7, 3, 4),
upper = c(5.5, 3.3, 7.5, 3.4, 4.6),
lower = c(4.5, 2.7, 6.5, 2.6, 3.4))

install.packages("ggplot2") # Install & load ggplot2
library("ggplot2")

ggplot(data, aes(x = group, y = mean)) + # Draw error bars with connected lines
geom_errorbar(aes(ymin = lower, ymax = upper)) +
geom_line(aes(x = 1:nrow(data), y = mean)) +
geom_point()

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