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data(cars)
plot(cars, col = "red")

data(iris)
plot(iris)

packageVersion("dada2")

[1] '1.30.0'

sessionInfo()

R version 4.3.1 (2023-06-16)
Platform: x86_64-apple-darwin20 (64-bit)
Running under: macOS Sonoma 14.3

Matrix products: default
BLAS:   /Library/Frameworks/R.framework/Versions/4.3-x86_64/Resources/lib/libRblas.0.dylib 
LAPACK: /Library/Frameworks/R.framework/Versions/4.3-x86_64/Resources/lib/libRlapack.dylib;  LAPACK version 3.11.0

locale:
[1] fr_FR.UTF-8/UTF-8/fr_FR.UTF-8/C/fr_FR.UTF-8/fr_FR.UTF-8

time zone: Europe/Paris
tzcode source: internal

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

loaded via a namespace (and not attached):
 [1] htmlwidgets_1.6.4 compiler_4.3.1    fastmap_1.1.1     cli_3.6.2        
 [5] tools_4.3.1       htmltools_0.5.7   yaml_2.3.8        rmarkdown_2.26   
 [9] knitr_1.45        jsonlite_1.8.8    xfun_0.42         digest_0.6.35    
[13] rlang_1.1.3       evaluate_0.23    

library(ggplot2)

Warning: le package 'ggplot2' a été compilé avec la version R 4.3.2

ggplot(iris, aes(Species,Sepal.Length))+
geom_boxplot()

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library(dplyr)

Attachement du package : 'dplyr'

Les objets suivants sont masqués depuis 'package:stats':

    filter, lag

Les objets suivants sont masqués depuis 'package:base':

    intersect, setdiff, setequal, union

iris %>%
group_by(Species) %>%
summarise(avg = mean(Sepal.Width))

# A tibble: 3 × 2
  Species      avg
  <fct>      <dbl>
1 setosa      3.43
2 versicolor  2.77
3 virginica   2.97