Warning! It seems that you are using Dodona within another webpage, so not everything may work properly. Let your teacher know so that he can solve the problem by adjusting a setting in the learning environment. In the meantime, you can click this link to open Dodona in a new window.
Tour de France
Sign in to test your solution.
# Gegevens ophalen en enkele manipulaties
data <- read.csv("https://raw.githubusercontent.com/rfordatascience/tidytuesday/master/data/2020/2020-04-07/tdf_winners.csv",
header = TRUE,
colClasses = c("NULL", rep("character", 2), "NULL", rep("numeric", 8), rep("NULL", 7)) )
data <- na.omit(data)
colnames(data)[1] <- "year"
data$year <- substr(data$year, 1, 4)
rownames(data) <- seq_len(nrow(data))
# Beantwoord hieronder de vragen
You can submit as many times as you like. Only your latest submission will be taken into account.
Sign in to test your solution.