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May you please help me how to generate a bar chart with 4 groups like the picture?Example Chart

Ali J.
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  • Possible duplicate of [Simplest way to do grouped barplot](https://stackoverflow.com/questions/17721126/simplest-way-to-do-grouped-barplot) – cropgen Apr 09 '19 at 19:02

1 Answers1

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No data was provided, so I created a dummy data. I created a use case below, otherwise there are get solutions on SO, such as Simplest way to do grouped barplot. 

library(tidyverse)

# Data
trees <- data.frame(age = sample(c("Old", "Adult", "Young"), 
                                 size = 20, replace = TRUE, prob = c(.5, .25, .25)), 
                    tree = factor(sample(1:5, size = 20, replace = TRUE)), 
                    circumference = rnorm(n = 20, mean = 60, sd = 15))

trees %>% 
  ggplot(aes(x = age, y = circumference, fill = tree)) + 
  geom_col(position = "dodge") + 
  coord_flip()

enter image description here

OTStats
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