install.packages("data.table") library(data.table) # Importer les données chemin_fichier <- "C:/Users/usuario/Desktop/SwimRecords.csv" swim <- fread(chemin_fichier) # Afficher les premières lignes du dataframe head(swim) ------------------------------------------------------------ # Installer et charger ggplot2 si nécessaire install.packages("ggplot2") } library(ggplot2) # Créer le graphique ggplot(swim, aes(x = year, y = time, color = sex)) + geom_point() + # Ajouter les points geom_smooth(method = "lm") + # Ajouter les lignes de régression labs( title = "Évolution des records mondiaux de 100 m", x = "Année", y = "Temps (secondes)", color = "Sexe" ) + theme_minimal() # Thème pour améliorer l'apparence ´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´ # Ajuster le modèle de régression linéaire modele <- lm(time ~ year * sex, data = swim) # Résumé du modèle summary(modele)
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